EP0233169B2 - Procédé de traitement des gasoils - Google Patents
Procédé de traitement des gasoils Download PDFInfo
- Publication number
- EP0233169B2 EP0233169B2 EP87870016A EP87870016A EP0233169B2 EP 0233169 B2 EP0233169 B2 EP 0233169B2 EP 87870016 A EP87870016 A EP 87870016A EP 87870016 A EP87870016 A EP 87870016A EP 0233169 B2 EP0233169 B2 EP 0233169B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydrocarbons
- feed
- silicalite
- process according
- catalyst
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 28
- 239000003921 oil Substances 0.000 title description 16
- 229930195733 hydrocarbon Natural products 0.000 claims description 41
- 150000002430 hydrocarbons Chemical class 0.000 claims description 40
- 239000003054 catalyst Substances 0.000 claims description 39
- 238000004517 catalytic hydrocracking Methods 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 9
- 238000011282 treatment Methods 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 229910002026 crystalline silica Inorganic materials 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 21
- 229910003296 Ni-Mo Inorganic materials 0.000 description 17
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000000203 mixture Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 238000007710 freezing Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 6
- 238000004523 catalytic cracking Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- -1 tetrapropylammonium cations Chemical class 0.000 description 3
- 238000005292 vacuum distillation Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 241000287107 Passer Species 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- 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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
- C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
- C10G45/64—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
-
- 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
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
- C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
- C10G65/12—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/70—Catalyst aspects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Definitions
- the present invention relates to a method for treating diesel fuel charges in order to be able to extract more valuable products than usual treatments.
- the present invention is relates to a particular combination of two treatments of diesel fuel charges in order to promote diesel and gasoline production.
- Heavy gas oils (vacuum distillation, VGO, or cut 370 to 540 ° C gas oils) were generally sent directly to the catalytic cracking unit in order to convert them into lighter hydrocarbons, highly recoverable; it is however desirable to try to make the best use of all the constituents gas oils, whether from atmospheric distillation or vacuum distillation. It was moreover realized during these last years, that it was possible to treat the gas oils before send them to catalytic cracking so as to recover many more recoverable products than by catalytic cracking alone.
- Gas oils can also be subjected to a process allowing to eliminate hydrocarbons waxy paraffinics. This leads to lowering the cloud point of gas oils.
- EP-A-0 070 125 describes a process for treating boiling hydrocarbons in the range of heavy diesel oils, in the presence of a catalyst consisting of a mixture comprising generally modified silicalite and a catalyst hydrogenation deposited on a support, Significant results of pour point reduction are obtained when the silicalite is modified with a catalytic metal of the palladium type.
- the present invention relates to a process for treating hydrocarbons boiling in the range of heavy gas oils to increase recovery of light hydrocarbons.
- the present invention also relates to a process for treating heavy gas oils in two steps to increase the production of diesel oil and gasoline compared to the quantity generally recoverable by catalytic cracking of the same charge.
- the present invention also relates to a method which makes it possible to treat hydrocarbons having a boiling point between about 370 ° C and 540 ° C so as to obtain a significant amount of variable light hydrocarbons.
- La Damanderesse unexpectedly found that by first submitting the hydrocarbon load boiling in the range of heavy gas oils to a treatment to remove paraffinic hydrocarbons waxy, by passing over a polymorphic crystalline silica of the unmodified silicalite type in appropriate conditions, and by subjecting the resulting charge to light hydrocracking, a production of light hydrocarbons, notably diesels and gasolines, in quantities clearly improved over what could reasonably be expected.
- the fillers used for the process of the invention are heavy gas oils, or distillation gas oils under vacuum (VGO), comprising the fraction of hydrocarbons having a boiling point of 370 to 540 ° C about. These charges may contain at most 25% of hydrocarbons having a boiling point below 370 ° C.
- VGO distillation gas oils under vacuum
- the process of the invention is particularly suitable for loads of heavy diesel containing large sulfur contents as high as 4% (by weight).
- a preferred application of the invention resides in the treatment of charges containing more than approximately 1% of sulfur.
- an unmodified silicalite that is to say a crystalline silica
- polymorph which has no exchange capacity compared to zeolites and which has not been modified by a catalytic metal.
- Aluminum can be present in these catalysts, but only in the form impurities from the starting materials and in particular from the source of silica used. The methods to obtain these materials are given in US Patent 4,061,724 to Grose and Flanigen.
- Silicalites are microporous materials prepared hydrothermally using a mixture reaction comprising tetrapropylammonium cations, alkali metal cations, water and a source of reactive silica.
- an unmodified silicalite having pores is used in the process of the invention. approximately 0.55 nm, and being in the form of crystallites of size less than 8 ⁇ m.
- the waxy paraffinic hydrocarbon removal step can be performed in any device comprising a reaction zone containing the silicalite type catalyst.
- the Applicant has surprisingly found that by directly submitting the charge resulting from the first step in a light hydrocracking, a final charge containing light hydrocarbons in much larger quantities than could be expected.
- the light hydrocracking reaction is carried out on a conventional light hydrocracking catalyst.
- a conventional light hydrocracking catalyst By way of example, there may be mentioned a Ni-Mo catalyst deposited on alumina and silica, prepared by incorporation of Ni and Mo in the form of oxide followed by drying and then by treatment with sweeping of a mixture of hydrogen and H 2 S (1-2% vol.) first at 200-250 ° C then up to 320-350 ° C.
- This catalyst can also be partially replaced by a Co-Mo catalyst deposited on alumina, prepared in a similar manner.
- these catalysts In their oxide form, these catalysts generally contain from 3 to 6% by weight of NiO or CoO, and from 10 to 20% by weight of MoO 3 ; they have a specific surface generally between 150 and 300 m 2 / g and the pore volume is generally between 0.3 and 0.6 ml / g. These catalysts are commercially available in oxide form.
- the reactions can be carried out in two reactors arranged in cascade and in temperature and pressure conditions which need not necessarily be identical, the Applicant found that both reactions could take place in the same reactor.
- different catalysts play a certain role in obtaining interesting results. This is how the The Applicant has found that 15 to 25% by volume of silicalite should be used, relative to the total catalyst and from 85 to 75% by volume of light hydrocracking catalyst.
- the catalysts can be arranged in several layers that can be surrounded by layers of inert materials.
- the two stages of the process in the same reactor, and the different catalysts are thus arranged in several beds, the first bed encountered being constituted by a polymorphic crystalline silica of the unmodified silicalite type.
- the charge is passed through the reaction zone containing the catalysts at a temperature between 350 and 450 ° C, and preferably between 380 and 420 ° C, under a pressure between atmospheric pressure and 80 bars, and preferably between 35 and 65 bars, and at an hourly space speed liquid (LHSV) between 0.1 and 20 I / I (calculated with respect to all the catalysts), preferably between 0.5 and 5 l / l.
- LHSV hourly space speed liquid
- hydrogen is introduced into the reaction zone, in an amount such that the hydrogen / hydrocarbons volume ratio is between 50 and 5000 and preferably between 250 and 1000 (the volume of hydrogen being measured in the gaseous state and under standard conditions).
- the hydrogen / hydrocarbons volume ratio is between 50 and 5000 and preferably between 250 and 1000 (the volume of hydrogen being measured in the gaseous state and under standard conditions).
- the gas recovered at the output from the reactor is generally recycled.
- part of the gas is permanently withdrawn recycles which is replaced by hydrogen.
- a 2.5 cm inside diameter reactor was filled with 20% by volume (i.e. 7 cm in height) of silicalite and 80% by volume (i.e. 28 cm in height) of Ni-Mo catalyst, all between two layers of inert material (each 40 cm high).
- a load of hydrocarbons was passed into the reactor in normal mode, the charge passing through successively silicalite, then Ni-Mo.
- the hydrogen from the refinery (called “pure” but containing about 85% hydrogen) at a partial hydrogen pressure of at least 40 bar.
- Example 2 The procedure described in Example 1 was repeated, replacing the Ni-Mo catalyst for half by a Co-Mo catalyst on alumina (commercially available under the name Ketjen 742) and for the other half by a catalyst. Ni-Mo on Al 2 O 3 / SiO 2 . The charge passed successively through the silicalite, the Co-Mo then the Ni-Mo.
- Example no Catalysts LHSV Conversion 1A silicalite / Ni-Mo 0.6 51.1 2 silicalite / Co-Mo / Ni-Mo 0.6 48.7 3A Ni-Mo / silicalite 0.6 50.8 C1 silicalite 3 5.6 C2 Ni-mo 0.6 34.9 C3 Ni-mo 0.75 26.9 1B silicalite / Ni-Mo 1.0 36.6 3B Ni-Mo / silicalite 1.0 30.7 C4 silicalite 5 5.0 C5 Ni-mo 1.0 24.7 C6 Ni-mo 1.25 19.3 1 C silicalite / Ni-Mo 1.5 21.8 3C Ni-Mo / silicalite 1.5 19.2 C7 silicalite 7.5 3.4 C8
- Example no. 1A C1 C3 Effluent composition (% by weight) hydrocarbons C 1 to C 4 7.17 2.99 1.45 section C 5 -180 ° C 14.18 3.19 7.58 180-250 ° C cut 9.01 2.28 7.79 cut 250-370 ° C 31.51 17.85 29.29 cutting 370 + ° C 38.13 73.69 53.89 Cutting properties 180-250 ° C density d 15/4 0.844 0.845 freezing point ⁇ -57 ° C -54 ° C cloud point ⁇ -45 ° C -45 ° C Cutting properties 250-370 ° C density d 15/4 0.893 0.884 freezing point -24 ° C - 4 ° C cloud point -27 ° C - 4 ° C cetane number 41.2 43.9
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Description
- surface spécifique : 153 m2/g
- volume des pores : 0,53 ml/g
- NiO : 3,6 % en poids
- MoO3 : 19,6 % en poids. Ce dernier catalyseur a été pré-traité en le soumettant à un séchage à 130° C suivi d'une sulfuration à 54 bars sous balayage d'un mélange H2 + H2S (1,1 % vol) d'abord à 250° C jusqu'à ce que la pression partielle d'H2S dépasse 0,03 bar à la sortie du réacteur, puis progressivement jusqu'à 320° C tout en maintenant une pression partielle d'H2S supérieure à 0,03 bar à la sortie. Le catalyseur Ni-Mo sulfuré contenait environ 10 % en poids de soufre.
- fraction <180° C 0.10 % poids
- fraction 180-250° C 2.55 % poids
- fraction 250-370° C 18.39 % poids
- fraction 370-500° C 64.55 % poids
- fraction 500 + °C 14.41 % poids
- densité d15/4 : 0,91
- teneur en soufre : 1,42 % poids
- azote total 1010 ppmp
- azote basique 267 ppmp
| Exemple n° | 1A | 1B | 1C | |
| LHSV | 0,6 | 1,0 | 1,5 | par rapport à l'ensemble des catalyseurs |
| Rapport volumique gaz recyclé/HC | 750 | 450 | 300 | exprimé en l de gaz (conditions normales) par l de charge |
| Conversion (%) | 51,1 | 36,6 | 21,8 | |
| Composition de l'effluent | % poids | |||
| hydrocarbures C1 et C2 | 1.66 | 1,48 | 0,91 | |
| hydrocarbures C3 | 1,73 | 1,04 | 0,47 | |
| hydrocarbures C4 | 3,78 | 2,08 | 0,93 | |
| coupe C5-180°C | 14,18 | 11,16 | 6,17 | |
| coupe 180-250°C | 9,01 | 6,39 | 5,74 | |
| coupe 250-370°C | 31,51 | 28,51 | 28,06 | |
| coupe 370+°C | 38,13 | 49,46 | 57,72 | |
| Propriétés de la coupe 180-250°C | ||||
| densité d15/4 | 0,844 | 0,847 | 0,843 | |
| point de figeage | <-57°C | -45°C | -47°C | |
| point de trouble | <-45°C | -45°C | -47°C | |
| Propriétés de la coupe 250-370°C | ||||
| densité d 15/4 | 0,893 | 0,890 | 0,890 | |
| point de figeage | -24°C | -15°C | - 8°C | |
| point de trouble | -27°C | -11°C | - 8°C | |
| indice de cétane | 41,2 | 42,5 | 44,0 |
| Exemple n° | 3A | 3B | 3C |
| LHSV | 0,6 | 1,0 | 1,5 |
| Conversion (%) | 50,8 | 30,7 | 19,2 |
| Effluent (% poids) | |||
| hydrocabures gazeux | 4,8 | ||
| coupe C5-180°C | 11,9 | ||
| coupe 180-250°C | 6,9 | ||
| coupe 250-370°C | 21,7 | ||
| coupe 370+°C | 54,7 | ||
| Propriétés de la coupe 180-250°C | |||
| densité d15/4 | 0,853 | ||
| point de figeage/trouble | -45°C | ||
| Propriétés de la coupe 250-370°C | |||
| densité d15/4 | 0,890 | ||
| point de figeage | -22°C | ||
| point de trouble | -18°C | ||
| indice de cétane | 42,4 |
| Exemple n° | Catalyseurs | LHSV | Conversion |
| 1A | silicalite/Ni-Mo | 0,6 | 51,1 |
| 2 | silicalite/Co-Mo/Ni-Mo | 0,6 | 48,7 |
| 3A | Ni-Mo/silicalite | 0,6 | 50,8 |
| C1 | silicalite | 3 | 5,6 |
| C2 | Ni-Mo | 0,6 | 34,9 |
| C3 | Ni-Mo | 0,75 | 26,9 |
| 1B | silicalite/Ni-Mo | 1,0 | 36,6 |
| 3B | Ni-Mo/silicalite | 1,0 | 30,7 |
| C4 | silicalite | 5 | 5,0 |
| C5 | Ni-Mo | 1,0 | 24,7 |
| C6 | Ni-Mo | 1,25 | 19,3 |
| 1C | silicalite/Ni-Mo | 1,5 | 21,8 |
| 3C | Ni-Mo/silicalite | 1,5 | 19,2 |
| C7 | silicalite | 7,5 | 3,4 |
| C8 | Ni-Mo | 1,5 | 18,2 |
| C9 | Ni-Mo | 1,87 | 15,3 |
| Exemple n° | 1A | C1 | C3 |
| Composition de l'effluent (% poids) | |||
| hydrocarbures C1 à C4 | 7,17 | 2,99 | 1,45 |
| coupe C5-180°C | 14,18 | 3,19 | 7,58 |
| coupe 180-250°C | 9,01 | 2,28 | 7,79 |
| coupe 250-370°C | 31,51 | 17,85 | 29,29 |
| coupe 370+°C | 38,13 | 73,69 | 53,89 |
| Propriétés de la coupe 180-250°C | |||
| densité d15/4 | 0,844 | 0,845 | |
| point de figeage | <-57°C | -54°C | |
| point de trouble | <-45°C | -45°C | |
| Propriétés de la coupe 250-370°C | |||
| densité d15/4 | 0,893 | 0,884 | |
| point de figeage | -24°C | - 4°C | |
| point de trouble | -27°C | - 4°C | |
| indice de cétane | 41,2 | 43,9 |
Claims (6)
- Procédé de traitement d'une charge d'hydrocarbures bouillant dans la gamme des gasoils lourds pour en extraire des hydrocarbures légers, comprenant un hydrocraquage léger et un enlèvement des hydrocarbures paraffiniques cireux, caractérisé en ce qu'il consisteet en ce que la silicalite non modifiée représente de 15 à 25 % du volume total de ces catalyseurs et que le catalyseur d'hydrocraquage léger représente de 85 à 75 % de ce volume total."(i) à soumettre cette charge à un enlèvement des hydrocarbures paraffiniques cireux en faisant passer la charge sur un catalyseur constitué par une silice cristalline polymorphe de type silicalite non modifiée dans des conditions appropriées pour craquer les hydrocarbures paraffiniques cireux, puis(ii) à soumettre la charge résultant de la première étape à un hydrocraquage léger sur un catalyseur classique d'hydrocraquage léger, et enfin(iii) à récupérer la charge comprenant une quantité importante d'hydrocarbures légers,
- Procédé selon la revendication 1, caractérisé en ce que la charge comprend au moins 75% d'hydrocarbures ayant un point d'ébullition de 370 à 540°C.
- Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la charge contient de 1 à 4% de soufre.
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le procédé est réalisé à une température de 350 à 450°C, à une pression de 1 à 80 bars, et à une LHSV de 0,1 à 20, en présence d'hydrogène en quantité telle que le rapport volumique H2/HC est de 50 à 5000.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le procédé est réalisé à une température de 380 à 420°C, à une pression de 35 à 65 bars, et à une LHSV de 0,5 à 5, en présence d'hydrogène en quantité telle que le rapport volumique H2/HC est de 250 à 1000.
- Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les étapes (i) et (ii) sont réalisées par passage successif sur des lits séparés de catalyseurs dans un même réacteur.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU86288A LU86288A1 (fr) | 1986-02-03 | 1986-02-03 | Procede de traitement des gasoils |
| LU86288 | 1986-02-03 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| EP0233169A2 EP0233169A2 (fr) | 1987-08-19 |
| EP0233169A3 EP0233169A3 (en) | 1989-02-22 |
| EP0233169B1 EP0233169B1 (fr) | 1991-12-27 |
| EP0233169B2 true EP0233169B2 (fr) | 2001-08-29 |
Family
ID=19730635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87870016A Expired - Lifetime EP0233169B2 (fr) | 1986-02-03 | 1987-02-03 | Procédé de traitement des gasoils |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4810356A (fr) |
| EP (1) | EP0233169B2 (fr) |
| JP (1) | JP2879793B2 (fr) |
| DE (1) | DE3775426D1 (fr) |
| LU (1) | LU86288A1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385663A (en) * | 1992-06-18 | 1995-01-31 | Uop | Integrated hydrocracking-catalytic dewaxing process for the production of middle distillates |
| CN1046755C (zh) * | 1993-10-08 | 1999-11-24 | 阿克佐诺贝尔公司 | 含蜡烃原料的加氢裂解和加氢脱蜡方法 |
| US5690810A (en) * | 1994-11-14 | 1997-11-25 | Texaco Inc. | Single-step process to upgrade naphthas to an improved gasoline blending stock |
| US6068757A (en) * | 1995-11-03 | 2000-05-30 | Coastal Eagle Point Oil Company | Hydrodewaxing process |
| EP0920911A1 (fr) * | 1997-12-05 | 1999-06-09 | Fina Research S.A. | Production de catalyseurs pour la conversion d'oléfines |
| US6461497B1 (en) * | 1998-09-01 | 2002-10-08 | Atlantic Richfield Company | Reformulated reduced pollution diesel fuel |
| CA2292314C (fr) * | 1998-12-16 | 2007-02-06 | China Petrochemical Corporation | Un procede de production de carburants diesels de qualite superieure et de point de solidification bas a partir d'huiles de fractionnement |
| EP1061117A1 (fr) * | 1999-06-16 | 2000-12-20 | Fina Research S.A. | Production d'oléfines |
| US20030070965A1 (en) * | 1999-11-01 | 2003-04-17 | Shih Stuart S. | Method for the production of very low sulfur diesel |
| US7955401B2 (en) * | 2007-07-16 | 2011-06-07 | Conocophillips Company | Hydrotreating and catalytic dewaxing process for making diesel from oils and/or fats |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1443877A (en) † | 1973-06-15 | 1976-07-28 | Mobil Oil Corp | Catalytic dewaxing of gas oils |
| US4309276A (en) † | 1980-04-28 | 1982-01-05 | Chevron Research Company | Hydrocarbon conversion with low-sodium silicalite |
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|---|---|---|---|---|
| US3700585A (en) * | 1969-10-10 | 1972-10-24 | Mobil Oil Corp | Dewaxing of oils by shape selective cracking and hydrocracking over zeolites zsm-5 and zsm-8 |
| US3654133A (en) * | 1970-06-23 | 1972-04-04 | Universal Oil Prod Co | Dewaxed lubricating oil production |
| US4061724A (en) * | 1975-09-22 | 1977-12-06 | Union Carbide Corporation | Crystalline silica |
| US4229282A (en) * | 1979-04-27 | 1980-10-21 | Mobil Oil Corporation | Catalytic dewaxing of hydrocarbon oils |
| US4419271A (en) * | 1979-10-15 | 1983-12-06 | Union Oil Company Of California | Hydrocarbon conversion catalyst |
| US4292166A (en) * | 1980-07-07 | 1981-09-29 | Mobil Oil Corporation | Catalytic process for manufacture of lubricating oils |
| US4428862A (en) * | 1980-07-28 | 1984-01-31 | Union Oil Company Of California | Catalyst for simultaneous hydrotreating and hydrodewaxing of hydrocarbons |
| JPS5763134A (en) * | 1980-07-28 | 1982-04-16 | Union Oil Co | Simultaneous hydrogenation dewaxing and hydrogenation treatment method for hydrocarbon and catalyst used for said method |
| US4347121A (en) * | 1980-10-09 | 1982-08-31 | Chevron Research Company | Production of lubricating oils |
| US4325805A (en) * | 1980-12-18 | 1982-04-20 | Chevron Research Company | Lubricating oil stabilization |
| US4361477A (en) * | 1981-04-17 | 1982-11-30 | Chevron Research Company | Stabilizing and dewaxing lube oils |
| US4561967A (en) * | 1981-04-23 | 1985-12-31 | Chevron Research Company | One-step stabilizing and dewaxing of lube oils |
| US4362653A (en) * | 1981-04-27 | 1982-12-07 | Uop Inc. | Hydrocarbon conversion catalyst |
| US4428825A (en) * | 1981-05-26 | 1984-01-31 | Union Oil Company Of California | Catalytic hydrodewaxing process with added ammonia in the production of lubricating oils |
| US4513090A (en) * | 1981-07-09 | 1985-04-23 | Exxon Research And Engineering Co. | Crystalline silica zeolite-containing catalyst |
| US4443329A (en) * | 1981-07-09 | 1984-04-17 | Exxon Research And Engineering Co. | Crystalline silica zeolite-containing catalyst and hydrocarbon hydroprocesses utilizing the same |
| US4394249A (en) * | 1981-08-03 | 1983-07-19 | Mobil Oil Corporation | Catalytic dewaxing process |
| CA1203225A (fr) * | 1981-08-07 | 1986-04-15 | Stephen M. Oleck | Deparaffinage et hydrotraitement d'hydrocarbures en deux etapes |
| US4458024A (en) * | 1982-02-08 | 1984-07-03 | Mobil Oil Corporation | Process for hydrotreating petroleum residua and catalyst therefor |
| US4490570A (en) * | 1982-02-22 | 1984-12-25 | Cosden Technology, Inc. | Method for para selective alkylation employing silicalite catalysts |
| US4548705A (en) * | 1982-03-09 | 1985-10-22 | Union Oil Company Of California | Hydrocracking with catalytically active amorphous silica and zeolites |
| US4599473A (en) * | 1983-12-19 | 1986-07-08 | Cosden Technology, Inc. | Process for para selective alkylation of aromatic hydrocarbons |
| US4597854A (en) * | 1985-07-17 | 1986-07-01 | Mobil Oil Corporation | Multi-bed hydrodewaxing process |
-
1986
- 1986-02-03 LU LU86288A patent/LU86288A1/fr unknown
-
1987
- 1987-02-02 JP JP62020601A patent/JP2879793B2/ja not_active Expired - Lifetime
- 1987-02-03 EP EP87870016A patent/EP0233169B2/fr not_active Expired - Lifetime
- 1987-02-03 DE DE8787870016T patent/DE3775426D1/de not_active Expired - Lifetime
- 1987-02-03 US US07/010,223 patent/US4810356A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1443877A (en) † | 1973-06-15 | 1976-07-28 | Mobil Oil Corp | Catalytic dewaxing of gas oils |
| US4309276A (en) † | 1980-04-28 | 1982-01-05 | Chevron Research Company | Hydrocarbon conversion with low-sodium silicalite |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2879793B2 (ja) | 1999-04-05 |
| JPS62246995A (ja) | 1987-10-28 |
| DE3775426D1 (de) | 1992-02-06 |
| EP0233169A3 (en) | 1989-02-22 |
| US4810356A (en) | 1989-03-07 |
| LU86288A1 (fr) | 1987-09-10 |
| EP0233169A2 (fr) | 1987-08-19 |
| EP0233169B1 (fr) | 1991-12-27 |
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