WO2015065201A2 - Procédé de réduction de la teneur en huile d'un mélange contenant de l'huile - Google Patents

Procédé de réduction de la teneur en huile d'un mélange contenant de l'huile Download PDF

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Publication number
WO2015065201A2
WO2015065201A2 PCT/NO2014/050207 NO2014050207W WO2015065201A2 WO 2015065201 A2 WO2015065201 A2 WO 2015065201A2 NO 2014050207 W NO2014050207 W NO 2014050207W WO 2015065201 A2 WO2015065201 A2 WO 2015065201A2
Authority
WO
WIPO (PCT)
Prior art keywords
oil
mixture
containing mixture
oil containing
ppm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/NO2014/050207
Other languages
English (en)
Other versions
WO2015065201A3 (fr
Inventor
Stein Kyrre MONSEN
Erik Michelsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THERMTECH HOLDING AS
Original Assignee
THERMTECH HOLDING AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by THERMTECH HOLDING AS filed Critical THERMTECH HOLDING AS
Publication of WO2015065201A2 publication Critical patent/WO2015065201A2/fr
Publication of WO2015065201A3 publication Critical patent/WO2015065201A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/06—Reclamation of contaminated soil thermally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • B09B3/45—Steam treatment, e.g. supercritical water gasification or oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/007—Fuel tanks, especially draining thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C02F11/08—Wet air oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil

Definitions

  • the present invention relates to the removal of oil content in a compound comprising a blend of other components. More specifically, the invention relates to a method for removing of oil from a heterogeneous mixture, where a large portion of the mixture is solid components.
  • Typical materials to be treated are drill cuttings, oily sludge, oily soils, bleaching earth, sludge from oil tanks, oil shale and fish wastes and solid materials contaminated with various hydrocarbon blends such as kerosene, diesel fuel, Fuel oil No. 1 , No.2, and No.4, Gasoline, and Petroleum.
  • the initial level of oil can be of any amount, for instance as much as about 20% oil in the mixture.
  • the present invention is however not restricted to removal of oil from materials with low amounts of oil, but can as indicated above also be used for all kind off materials, and with all amounts/ratios of oil in the material. Oil in this context means all types of hydrocarbons, organic matters and oils.
  • the concept of the present invention is a process that can separate oil from an oil containing mixture by oxidizing a fraction or all oil in such an oil containing mixture.
  • the oil containing mixture can for example be drill cuttings, oily sludge, and other solid, semi-solid, or particulate materials contaminated with oil.
  • the present invention relates to a method for lowering the amount of oil in an oil containing mixture, wherein
  • said mixture is preheated before entering the reaction chamber and/or heated in the reaction chamber to a temperature above oxidation stability temperature for said oil
  • oxygen or a mixture of gases comprising oxygen is injected into said heated oil containing mixture to oxidize said oil, and lower the amount of oil in said oil containing mixture.
  • heating energy provided to the reaction chamber comes from the exothermic oxidation of oils in said oil containing mixture.
  • a preferred embodiment is said temperature above an auto-ignition temperature of said oil in said oil containing mixture.
  • the oil containing mixture preheated and/or heated to a temperature of above 100 °C, more preferable above 150 °C, more preferable above 200 °C and more preferable above 250 °C.
  • said temperature about or above 260 °C.
  • vapour or a mixture of vapours injected to said heated oil containing mixture.
  • said gas mixture also a gas selected from the group containing C0 2 , Nitrogen, Argon and Helium.
  • vapour a steam, i.e. water vapour.
  • said oil containing mixture selected from the group consisting of drill cuttings, oily sludge, oily soils, bleaching earth, sludge from oil tanks, oil shale and fish wastes, and solids contaminated with an oil compound or blend of compounds.
  • said oil containing mixture selected from the group containing kerosene, diesel fuel, fuel oil no. 1 , no.2, and no.4, gasoline and petroleum.
  • said method adapted to sparge/flush the mixture and enhance the separation of the oil from the oil containing mixture by increasing the amount of inert gasses relative to oxygen injected into the reaction chamber.
  • the method both sparge/flushes and oxidizes the oi in the oil containing mixture.
  • the oil containing mixture partially pre ⁇ heated before entering the reaction chamber.
  • a preferred embodiment is the method used on a mixture containing less than 5000 ppm, more preferable 4000 ppm, more preferable 3000 ppm, and most preferable 2500 ppm oil, and lowers the amount of oil after treatment to less than about 500 ppm, more preferable less than about 400 ppm, more preferable less than about 300 ppm, or more preferable less than about 200 ppm, and more preferable less than about 150 ppm oil.
  • Figure 1 is a schematic outline of a reaction chamber which can be used for conducting the method according to the invention.
  • An oil containing mixture is fed to a reaction chamber.
  • the mixture is heated in the chamber, or is fed pre-heated to the chamber.
  • Oxygen is injected into the reaction chamber, optionally in combination with other gases.
  • Cleaned material i.e. with a reduced amount of oil in the materia! is removed from the reaction chamber.
  • oxygen or a mix of gases comprising oxygen is added by injecting to the oil containing material.
  • the material is heated, or preheated to a predetermined temperature. The temperature is sufficient to ensure a partial oxidation of a portion of the oil component in the material.
  • the partial or complete oxidation of the oil in the material requires oxygen.
  • the oxygen is fed to the chamber wherein the process takes place. Oxygen is added as the sole gas, or as one of the gases of the gas mixture.
  • the injected oxygen creates a condition for oxidation of the oil component, and this is an exothermic reaction.
  • the exothermic reaction liberates heat which is used to maintain or increase the temperature of the mixture in the chamber.
  • the level of oxidation can be controlled to be up to 100%, i.e. from almost no oxidation to a complete oxidation of the oil component.
  • a partial oxidation can mean that a portion of the oil is fully oxidized, and/or that all the oil is partially oxidized.
  • vapour to add to the process is water vapour, i.e. steam.
  • gases other than oxygen added to the mixture are one or more gases other than oxygen added to the mixture.
  • This gas or mixture of gases is selected from the group containing C0 2 , Nitrogen, Argon, and Helium.
  • Figure 1 shows a process chamber containing an inlet for feeding the oil containing material to the process chamber, and an outlet for discharging the cleaned material.
  • the chamber also contains one or more gas and/or vapour entrances, for instance pipe lines equipped with nozzles.
  • the nozzles can be arranged at specific places in the chamber such that it is possible to regulate and control the oxidation and sparging/flushing and gas stripping process that takes place in the chamber.
  • the chamber also contains an outlet for discharge of oil components, i.e. evaporated oil components. This outlet is led to a unit for recovering of the oil component.
  • the gases other than oxygen have at least four functions in this process, including, but not limited to: i) sparging, ii) temperature control, iii) controlling the oxidation and iv) pressure control.
  • the temperature, pressure and flow-rate of the injected gas mixture may be adjusted to achieve the desired results.
  • the temperature is regulated to be less than the boiling temperature plus some safety temperature margins (for example 10%).
  • some safety temperature margins for example 10%.
  • This sparging process may be used independently, and/or in connection with and/or as an integrated part of another process.
  • the oil transported/flushed by the gasses (“sparged oil”) may be recovered and reused.
  • Oxidation stability temperature is the lowest temperature at which oil starts to oxidize.
  • Hydrocarbon is defined as a chemical compound that is a mixture of hydrogen and carbon.
  • Oil in the context of the present description and claims means all types of hydrocarbons and organic matters.
  • the term also comprises “oils” which are nonpolar viscous and oxidable compounds.
  • the oil containing material used in this experimental test was a cutting material, i.e. a mix of water, emulators, stabilizing chemicals, base oil (no higher than C 2 o) ! mineral clay and harder gravel of drill cutting.
  • composition was as follows:
  • the material is heated or preheated to a temperature of about 280 °C, and fed to a chamber, and a temperature of 280 °C or more is maintained in the chamber.
  • the chamber is filled with about 3000 kg material, which appears to be solid but has a remaining oil content of about 2500 ppm (7500 gram in total).
  • a gas mixture of 7% oxygen and 93% nitrogen is injected into the chamber at a gas flow of 50-70 l/min, to a total oxygen concentration of 3.2% (i.e. 1200 gram oxygen in total).
  • the oil containing material was maintained at about 260 °C, supplied with oxygen for about 5 hours, and about 95% of the oil was removed from the solids, i.e. the amount of oil in the mixture was reduced from about 2500 ppm to 141 ppm.
  • the oil that has been oxidized by oxygen amounts to about 400 gram, i.e. more than 6500 gram of the oil has been removed as non-oxidized oil. Without being bound by theory, it is believed that this amount of oil has been removed due to oxidation and/or sparging or flushing of the mixture.
  • the oxidation of the oil component is an exothermic process which thus generates energy and heats the mixture, i.e. maintains and/or increases the temperature of the mixture.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Fats And Perfumes (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

On décrit un procédé de réduction de la teneur en huile d'un mélange contenant de l'huile. Le mélange est chauffé et de l'oxygène ou un mélange de gaz contenant de l'oxygène est injecté dans ledit mélange contenant de l'huile chauffée.
PCT/NO2014/050207 2013-10-31 2014-10-31 Procédé de réduction de la teneur en huile d'un mélange contenant de l'huile Ceased WO2015065201A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20131440 2013-10-31
NO20131440A NO20131440A1 (no) 2013-10-31 2013-10-31 Fremgangsmåte for å redusere mengden av hydrokarboner i en hydrokarbonholding blanding

Publications (2)

Publication Number Publication Date
WO2015065201A2 true WO2015065201A2 (fr) 2015-05-07
WO2015065201A3 WO2015065201A3 (fr) 2015-07-16

Family

ID=52003030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2014/050207 Ceased WO2015065201A2 (fr) 2013-10-31 2014-10-31 Procédé de réduction de la teneur en huile d'un mélange contenant de l'huile

Country Status (2)

Country Link
NO (1) NO20131440A1 (fr)
WO (1) WO2015065201A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105347655A (zh) * 2015-09-24 2016-02-24 北京洁神福吉环保科技有限公司 一种垃圾处理系统、方法及其应用
CN105618460A (zh) * 2015-12-30 2016-06-01 西南科技大学 含油钻屑降解固化一体化处理方法
NO20161365A1 (en) * 2016-08-26 2018-02-27 Hellenes Holding As Oxidiser vessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB706686A (en) * 1950-06-15 1954-04-07 Stirling Drug Inc Process for the destructive oxidation of organic materials in aqueous media
US4024912A (en) * 1975-09-08 1977-05-24 Hamrick Joseph T Hydrogen generating system
DK71987D0 (da) * 1987-02-13 1987-02-13 Nordiske Kabel Traad Fremgangsmaade til rensning af olie- og kemikalieforurenet jord
US5614087A (en) * 1994-07-13 1997-03-25 Kenox Corporation Wet oxidation system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105347655A (zh) * 2015-09-24 2016-02-24 北京洁神福吉环保科技有限公司 一种垃圾处理系统、方法及其应用
CN105618460A (zh) * 2015-12-30 2016-06-01 西南科技大学 含油钻屑降解固化一体化处理方法
NO20161365A1 (en) * 2016-08-26 2018-02-27 Hellenes Holding As Oxidiser vessel
NO345143B1 (en) * 2016-08-26 2020-10-19 Hellenes Holding As Oxidiser vessel

Also Published As

Publication number Publication date
WO2015065201A3 (fr) 2015-07-16
NO20131440A1 (no) 2015-05-01

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