WO2020008477A1 - Formulation d'amine de neutralisation et son procédé de préparation - Google Patents

Formulation d'amine de neutralisation et son procédé de préparation Download PDF

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Publication number
WO2020008477A1
WO2020008477A1 PCT/IN2019/050494 IN2019050494W WO2020008477A1 WO 2020008477 A1 WO2020008477 A1 WO 2020008477A1 IN 2019050494 W IN2019050494 W IN 2019050494W WO 2020008477 A1 WO2020008477 A1 WO 2020008477A1
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Prior art keywords
amine
formulation
range
present disclosure
respect
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English (en)
Inventor
Naresh KOTTARI
Raghava Krishna KANNALA
Sairamu MADALA
Subhash Kumar
Ramkumar MANGALA
Bojja RAMACHANDRARAO
Peddy VENKAT CHALAPATHI RAO
Nettem VENKATESWARLU CHOUDARY
Gandham SRIGANESH
Ravi BALASUBRAMANIAM
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Hindustan Petroleum Corp Ltd
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Hindustan Petroleum Corp Ltd
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Publication of WO2020008477A1 publication Critical patent/WO2020008477A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G7/00—Distillation of hydrocarbon oils
    • C10G7/10—Inhibiting corrosion during distillation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
    • C10G75/04—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of antifouling agents

Definitions

  • the present disclosure generally relates to the field of inhibiting corrosion in the crude distillation units of refineries.
  • the present disclosure discloses a formulation which combats the problem associated of condensing hydrocarbons which contain water and chlorides
  • Refineries employ neutralizing amines to guard their crude distillation unit overhead systems from corrosion due to hydrochloric acid (HC1) or acidic sulfur species and fouling due to build-up of sublimating species.
  • the amines are usually organic amines (such as di-ethanol amine, monoethanol amine, triethanolamine, morpholine, piperazine, etc.) which function by neutralizing acidic contaminants, thereby increasing the pH to an appropriate level for minimizing corrosion of the various system.
  • organic amines such as di-ethanol amine, monoethanol amine, triethanolamine, morpholine, piperazine, etc.
  • US 4,062,764 discloses that alkoxylated amines are useful in neutralizing the initial condensate.
  • US 3,472,666 suggests that alkoxy substituted aromatic amines in which the alkoxy group contains from 1 to 10 carbon atoms are effective corrosion inhibitors in petroleum refining operations. Representative examples of these materials are aniline, anisidine and phenetidines.
  • US 4,430,196 discloses the utility of hydroxylated amines.
  • Representative examples of these neutralizing amines are dimethylisopropanolamine and dimethylaminoethanol.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine; (c) contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a method of reducing fouling in a petroleum refinery comprising, adding the formulation comprising: (a) at least one first amine; and (b) at least one second amine to a water system.
  • the articles“a”,“an” and“the” are used to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article.
  • fouling and/or corrosion problem refers to aqueous corrosion due to hydrochloric acid (HC1) or acidic sulfur species, or the build-up of sublimating species such as ammonium chloride under deposit corrosion in distillation units.
  • surfactant amine refers to fatty acid amines which can be used as surfactants.
  • Such surfactant amines include, by way of example Ci-io alkyl ammonium chloride, alkyldimethyl ammonium chloride.
  • alkyl herein refers to a branched or unbranched chain having 1-10 carbon atoms.
  • the surfactant amines in the present disclosure are those which are known to a person skilled in the art.
  • ionic liquid are used to refer quaternary ammonium compounds known to a person skilled in the art.
  • Ratios, concentrations, amounts, and other numerical data may be presented herein in a range format. It is to be understood that such range format is used merely for convenience and brevity and should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited.
  • a weight percentage of about 50 % to 90 % should be interpreted to include not only the explicitly recited limits of about 50% and 90 %, but also to include sub-ranges, such as 55-85 %, 65-75%, and so forth, as well as individual amounts, including fractional amounts, within the specified ranges, such as 90 %, 85 %, for example.
  • the formulation of the present disclosure provides a neutralizing formulation/agent comprising: (a) at least one first amine; and (b) at least one second amine.
  • the at least one first amine to the at least one second amine present in the formulation can have a weight ratio is in the range of 8: 1 - 10: 1.
  • the neutralizing formulation effectively neutralizes the acidic species and as a result combat the primary corrosion problem encountered in crude distillation unit overhead systems.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is 9: 1.
  • a formulation as described herein wherein the at least one first amine has a weight percentage in the range of 50 to 95 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1 and the at least one first amine has a weight percentage in the range of 50 to 95 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1 and the at least one first amine has a weight percentage in the range of 50 to 95 % with respect to the formulation.
  • a formulation as described herein wherein the at least one first amine has a weight percentage in the range of 60 to 95 % with respect to the formulation. In another embodiment the at least one first amine has a weight percentage in the range of 75 to 92 % with respect to the formulation. In yet another embodiment the at least one first amine has a weight percentage in the range of 80 to 90 % with respect to the formulation.
  • the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1 and the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1 and the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof.
  • the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, and combinations thereof.
  • the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, and combinations thereof.
  • the at least one first amine is selected from diethanolamine or morpholine.
  • the at least one first amine is selected from the group consisting of diethanolamine, morpholine, diethylaminoethanol, and combinations thereof.
  • the at least one second amine has a weight percentage in the range of 5 to 15 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1 and the at least one second amine has a weight percentage in the range of 5 to 15 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1 and the at least one second amine has a weight percentage in the range of 5 to 15 % with respect to the formulation.
  • a formulation as described herein wherein the at least one second amine has a weight percentage in the range of 6 to 15 % with respect to the formulation. In another embodiment the at least one second amine has a weight percentage in the range of 8 to 12 % with respect to the formulation. In yet another embodiment the at least one second amine has a weight percentage of 10 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1 and the at least one second amine is a product of epichlorohydrin and the at least one first amine and the at least one first amine.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1 and the at least one second amine is a product of epichlorohydrin and the at least one first amine and the at least one first amine.
  • a formulation as described herein wherein the at least one second amine is a product of epichlorohydrin and the at least one first amine, and has a weight percentage in the range of 5 to 15 % with respect to the formulation.
  • the at least one second amine is a product of epichlorohydrin and the at least one first amine, and has a weight percentage in the range of 6 to 15 % with respect to the formulation.
  • the at least one second amine is a product of epichlorohydrin and the at least one first amine, has a weight percentage in the range of 8 to 12 % with respect to the formulation.
  • the at least one second amine is a product of epichlorohydrin and the at least one first amine, and has a weight percentage of 10 % with respect to the formulation.
  • the at least one second amine is a product of epichlorohydrin and the at least one first amine selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof.
  • a formulation as described herein wherein the at least one second amine has a weight percentage in the range of 5 to 15 % with respect to the formulation, and is a product of epichlorohydrin and the at least one first amine selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof.
  • a formulation as described herein wherein the at least one second amine has a weight percentage in the range of 5 to 15 % with respect to the formulation, and is a product of epichlorohydrin and the at least one first amine selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof and the at least one first amine has a weight percentage in the range of 50 to 95 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1 and the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof and the at least one second amine is a product of epichlorohydrin and the at least one first amine.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1 and the at least one first amine is selected from the group consisting of diethanolamine, morpholine, monoethanolamine, triethanolamine, cyclohexylamine, piperazine, diethylaminoethanol, methyldiethanolamine, ethyl ethanolamine, aminoethyl piperazine, and combinations thereof and the at least one second amine is a product of epichlorohydrin and the at least one first amine.
  • a formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation; and is selected from the group consisting of surfactant amines, ionic liquids, and combinations thereof.
  • a formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation, and is selected from the group consisting of surfactant amines, ionic liquids, and combinations thereof, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation, and is selected from the group consisting of surfactant amines, ionic liquids, and combinations thereof, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1.
  • a formulation as described herein wherein the formulation optionally comprises at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation and selected from the group consisting of surfactant amines, ionic liquids, and combinations thereof.
  • the at least one additive has a weight percentage in the range of 0.5 to 4.5 % with respect to the formulation.
  • the at least one additive has a weight percentage has a weight percentage of 3 % with respect to the formulation.
  • the at least one additive is surfactant amine.
  • the at least one additive is ionic liquid.
  • the additive is an ionic liquid, i.e. l-decyl-3- methylimidazolium chloride having a weight percentage of 2 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation; and (c) at least one additive having a weight percentage in the range of 0 to 5 % with respect to the formulation, wherein the at least one first amine to the at least one second amine weight ratio is 9: 1.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; and (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; and (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1.
  • a formulation comprising: (a) at least one first amine having a weight percentage in the range of 50 to 90 % with respect to the formulation; and (b) at least one second amine having a weight percentage in the range of 5 to 10 % with respect to the formulation, wherein the at least one first amine to the at least one second amine weight ratio is 9: 1.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine; and (c) contacting the at least one first amine, the at least one second amine to obtain the formulation.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine; and (c) contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8.5: 1 - 9.5: 1, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine; and (c) contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, the process comprising: (a) obtaining the at least one first amine; (b) obtaining at least one second amine, i.e., a reaction product obtained by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 40 - 60 °C for a period in the range of 2 - 4 hours; and (c) contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation.
  • reaction product obtained by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 40 - 60 °C for a period in the range of 2 - 4 hours.
  • reaction product is obtained by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 42 - 58 °C for a period in the range of 2.5 - 3.5 hours.
  • reaction product is obtained by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 50 °C for a period in the range of 3 hours.
  • contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation is carried out at a temperature in the range of 25 °C - 60 °C for a period in the range of 10 minutes - 120 minutes.
  • contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation is carried out at a temperature in the range of 35 °C - 55 °C for a period in the range of 20 minutes - 100 minutes.
  • contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation is carried out at a temperature in the range of 40 °C for a period in the range of 20 minutes.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine; and (c) contacting the at least one first amine, the at least one second amine, and optionally the at least one additive to obtain the formulation is carried out at a temperature in the range of 25 °C - 60 °C for a period in the range of 10 minutes - 120 minutes.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine is carried out by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 40 - 60 °C for a period in the range of 2 - 4 hours; and (c) contacting the at least one first amine, the at least one second amine carried out at a temperature in the range of 25 °C - 60 °C for a period in the range of 10 minutes - 120 minutes to obtain the formulation.
  • a process for preparing the formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, the process comprising: (a) obtaining the at least one first amine; (b) obtaining at least one second amine, i.e., a reaction product obtained by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 40 - 60 °C for a period in the range of 2 - 4 hours; and (c) contacting the at least one first amine, the at least one second amine carried out at a temperature in the range of 25 °C - 60 °C for a period in the range of 10 minutes - 120 minutes to obtain the formulation.
  • a process for preparing the formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive, the process comprising: (a) obtaining the at least one first amine; (b) obtaining the at least one second amine; (c) obtaining at least one additive; and (c) contacting the at least one first amine, the at least one second amine, and the at least one additive to obtain the formulation.
  • a process for preparing the formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, the process comprising: (a) obtaining the at least one first amine; (b) obtaining at least one second amine, i.e., a reaction product obtained by contacting epichlorohydrin, and at least one first amine at a temperature in the range of 40 - 60 °C for a period in the range of 2 - 4 hours; (c) obtaining at least one additive; and (c) contacting the at least one first amine, the at least one second amine, and the at least one additive is carried out at a temperature in the range of 25 °C - 60 °C for a period in the range of 10 minutes - 120 minutes to obtain the formulation.
  • a method of reducing fouling in a petroleum refinery comprising, adding the formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive, to a water system.
  • a method of reducing fouling in a petroleum refinery comprising, adding the formulation comprising: (a) at least one first amine; and (b) at least one second amine to a water system, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • a method of reducing fouling in a petroleum refinery comprising, adding the formulation comprising: (a) at least one first amine; and (b) at least one second amine to a water system, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, wherein the at least one second amine is a product of epichlorohydrin and the at least one first amine.
  • a method of reducing fouling in a petroleum refinery comprising, adding the formulation comprising: (a) at least one first amine; (b) at least one second amine; and (c) at least one additive, to a water system, wherein the water system is an oil refinery overhead system.
  • a method of reducing fouling in a petroleum refinery comprising, adding the formulation comprising: (a) at least one first amine; and (b) at least one second amine to a water system, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1 and the water system is an oil refinery overhead system.
  • a formulation comprising: (a) at least one first amine; and (b) at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1, wherein the formulation can act as a film forming neutralizing amine for reducing fouling in a petroleum refinery.
  • the amines (at least one amine) used in the Example 1 and Example 2 can be replaced by the following amines alone or in combination to obtain the at least one second amine of the present disclosure.
  • the formulation of the present disclosure was prepared as follows: 90 % (w/w) of the first amine and 10 % (w/w) of the second amine were mixed together at a temperature in the range of 25 °C - 60 °C for a period in the range of 10 minutes - 120 minutes to obtain the formulation of the present disclosure.
  • the formulation with the additive was prepared in a similar manner as described in Example 3, wherein the weight percentages of the components were kept as below: 90 % (w/w) of the first amine; 8 % (w/w) of the second amine; and 2 % (w/w) of at least one additive.
  • said additive is l-decyl-3-methylimidazolium chloride (ionic liquid).
  • the solution of morpholine, compound 2 and l-decyl-3-methylimidazolium chloride were heated at 40-60 °C for 20 min to obtain the neutralizing amine formulation.
  • the obtained thermic fluid composition is only acceptable when certain specific base fluids are used during the preparation.
  • inventive Formulations 2, 4, 6 and 7 comprising a combination of at least one first amine and at least one second amine in a weight ratio range 8: 1 to 10: 1, required lower dose to achieve the required pH range.
  • the corrosion rate experiments are performed with HC1 solution.
  • the HC1 was neutralized with suitable amount of amine from the Formulations of Table 2.
  • the corrosion rate experiments were performed on Carbon steel coupon at 120 °C in a closed system by using high temperature and high pressure reactor. Said system simulates the water system in an oil refinery overhead system.
  • Formulations 1 and 2 depicted in the Table 2 above correspond to the Formulations 1 and 2 of the Table 1.
  • the numbering has hence been retained to ensure clarity.
  • the Formulation 7 comprises 90 % by weight diethanol amine, 8% by weight compound 1 and 2% by weight ionic liquid (l-decyl-3-methylimidazolium chloride).
  • the present disclosure provides a formulation comprising at least one first amine and at least one second amine, wherein the at least one first amine to the at least one second amine weight ratio is in the range of 8: 1 - 10: 1.
  • the formulation is capable of neutralizing acidic components, i.e., the neutralizing formulation effectively neutralizes the acidic species, such as hydrochloric acid (HC1) or acidic sulfur species, and as a result combat the primary corrosion problem encountered in crude distillation unit overhead systems, thus minimizing the deposition of resulting amine salt to on overhead condensing equipment surfaces. Fouling of overhead condensing in crude distillation unit is minimized by the usage of formulation of the present disclosure, thereby reducing the productivity loss due to cleaning and/or replacing fouled equipment.
  • the process of preparation of the formulation, as well as a method for reducing fouling of petroleum refinery are also disclosed herein.

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  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

La présente invention concerne une formulation pour l'inhibition de la corrosion. La formulation comprend : a) au moins une première amine; et b) au moins une seconde amine, le rapport de poids de ladite au moins une première amine audit au moins une seconde amine étant dans la plage de 8 : 1 à 10 : 1. La présente invention concerne en outre un procédé de préparation de la formulation. La présente invention concerne également un procédé de réduction de l'encrassement dans une raffinerie de pétrole.
PCT/IN2019/050494 2018-07-04 2019-07-02 Formulation d'amine de neutralisation et son procédé de préparation Ceased WO2020008477A1 (fr)

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IN201841025004 2018-07-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022172279A1 (fr) * 2021-02-15 2022-08-18 Hindustan Petroleum Corporation Limited Composé dioléyle inhibant la corrosion, et formulation d'amine de celui-ci formant un film inhibant la corrosion

Citations (12)

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US3472666A (en) 1966-10-19 1969-10-14 Exxon Research Engineering Co Corrosion inhibitor
US3779905A (en) * 1971-09-20 1973-12-18 Universal Oil Prod Co Adding corrosion inhibitor to top of crude oil still
US3930810A (en) * 1974-07-31 1976-01-06 Universal Oil Products Company Additives for petroleum distillates
US3981780A (en) 1973-04-20 1976-09-21 Compagnie Francaise De Raffinage Compositions for inhibiting the corrosion of metals
US4062764A (en) 1976-07-28 1977-12-13 Nalco Chemical Company Method for neutralizing acidic components in petroleum refining units using an alkoxyalkylamine
US4430196A (en) 1983-03-28 1984-02-07 Betz Laboratories, Inc. Method and composition for neutralizing acidic components in petroleum refining units
US5176847A (en) * 1989-01-06 1993-01-05 Baker Hughes Incorporated Demulsifying composition
WO2000001785A1 (fr) * 1998-07-01 2000-01-13 Betzdearborn Inc. Traitements et compositions anticorrosion
US20050183325A1 (en) * 2004-02-24 2005-08-25 Sutkowski Andrew C. Conductivity improving additive for fuel oil compositions
US20110147275A1 (en) * 2009-12-18 2011-06-23 Exxonmobil Research And Engineering Company Polyalkylene epoxy polyamine additives for fouling mitigation in hydrocarbon refining processes
EP3031885A1 (fr) * 2014-12-09 2016-06-15 Afton Chemical Corporation Composition pour la réduction de tension de surface dans un carburant de distillat
EP3246380A1 (fr) * 2016-05-18 2017-11-22 Bharat Petroleum Corporation Ltd. Régulation de la corrosion de distillat de tête dans une unité de production de pétrole brut au moyen de mélanges d'amines multiples

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472666A (en) 1966-10-19 1969-10-14 Exxon Research Engineering Co Corrosion inhibitor
US3779905A (en) * 1971-09-20 1973-12-18 Universal Oil Prod Co Adding corrosion inhibitor to top of crude oil still
US3981780A (en) 1973-04-20 1976-09-21 Compagnie Francaise De Raffinage Compositions for inhibiting the corrosion of metals
US3930810A (en) * 1974-07-31 1976-01-06 Universal Oil Products Company Additives for petroleum distillates
US4062764A (en) 1976-07-28 1977-12-13 Nalco Chemical Company Method for neutralizing acidic components in petroleum refining units using an alkoxyalkylamine
US4430196A (en) 1983-03-28 1984-02-07 Betz Laboratories, Inc. Method and composition for neutralizing acidic components in petroleum refining units
US5176847A (en) * 1989-01-06 1993-01-05 Baker Hughes Incorporated Demulsifying composition
WO2000001785A1 (fr) * 1998-07-01 2000-01-13 Betzdearborn Inc. Traitements et compositions anticorrosion
US20050183325A1 (en) * 2004-02-24 2005-08-25 Sutkowski Andrew C. Conductivity improving additive for fuel oil compositions
US20110147275A1 (en) * 2009-12-18 2011-06-23 Exxonmobil Research And Engineering Company Polyalkylene epoxy polyamine additives for fouling mitigation in hydrocarbon refining processes
EP3031885A1 (fr) * 2014-12-09 2016-06-15 Afton Chemical Corporation Composition pour la réduction de tension de surface dans un carburant de distillat
EP3246380A1 (fr) * 2016-05-18 2017-11-22 Bharat Petroleum Corporation Ltd. Régulation de la corrosion de distillat de tête dans une unité de production de pétrole brut au moyen de mélanges d'amines multiples

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022172279A1 (fr) * 2021-02-15 2022-08-18 Hindustan Petroleum Corporation Limited Composé dioléyle inhibant la corrosion, et formulation d'amine de celui-ci formant un film inhibant la corrosion

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