EP1361923A1 - Procede de sulfuration des catalyseurs d'hydrotraitement - Google Patents
Procede de sulfuration des catalyseurs d'hydrotraitementInfo
- Publication number
- EP1361923A1 EP1361923A1 EP02706852A EP02706852A EP1361923A1 EP 1361923 A1 EP1361923 A1 EP 1361923A1 EP 02706852 A EP02706852 A EP 02706852A EP 02706852 A EP02706852 A EP 02706852A EP 1361923 A1 EP1361923 A1 EP 1361923A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- catalyst
- sulfurization
- hydrogen
- sulfur
- tertiary mercaptan
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000001257 hydrogen Substances 0.000 claims abstract description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 32
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical group SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims abstract description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 6
- 238000005987 sulfurization reaction Methods 0.000 claims description 38
- 229910052717 sulfur Inorganic materials 0.000 claims description 25
- 239000011593 sulfur Substances 0.000 claims description 25
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 24
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical group CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 claims description 21
- 238000011065 in-situ storage Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 5
- 238000005470 impregnation Methods 0.000 claims description 4
- 238000007725 thermal activation Methods 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 3
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical class [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 3
- 150000003568 thioethers Chemical class 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 229910000480 nickel oxide Inorganic materials 0.000 claims 2
- VVRQVWSVLMGPRN-UHFFFAOYSA-N oxotungsten Chemical class [W]=O VVRQVWSVLMGPRN-UHFFFAOYSA-N 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 229910001930 tungsten oxide Inorganic materials 0.000 claims 1
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 30
- 229930192474 thiophene Natural products 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 229920001021 polysulfide Polymers 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 238000011066 ex-situ storage Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 150000001336 alkenes Chemical class 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- WHDPTDWLEKQKKX-UHFFFAOYSA-N cobalt molybdenum Chemical compound [Co].[Co].[Mo] WHDPTDWLEKQKKX-UHFFFAOYSA-N 0.000 description 5
- 239000002283 diesel fuel Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000005077 polysulfide Substances 0.000 description 5
- 150000008117 polysulfides Polymers 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 150000003464 sulfur compounds Chemical class 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- PXJJSXABGXMUSU-UHFFFAOYSA-N disulfur dichloride Chemical compound ClSSCl PXJJSXABGXMUSU-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- -1 linear or branched Chemical group 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 2
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 2
- 150000008116 organic polysulfides Chemical class 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- BZJTUOGZUKFLQT-UHFFFAOYSA-N 1,3,5,7-tetramethylcyclooctane Chemical group CC1CC(C)CC(C)CC(C)C1 BZJTUOGZUKFLQT-UHFFFAOYSA-N 0.000 description 1
- DRHABPMHZRIRAH-UHFFFAOYSA-N 2,4,4,6,6-pentamethylhept-2-ene Chemical group CC(C)=CC(C)(C)CC(C)(C)C DRHABPMHZRIRAH-UHFFFAOYSA-N 0.000 description 1
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- DXHPZXWIPWDXHJ-UHFFFAOYSA-N carbon monosulfide Chemical compound [S+]#[C-] DXHPZXWIPWDXHJ-UHFFFAOYSA-N 0.000 description 1
- HDFRDWFLWVCOGP-UHFFFAOYSA-N carbonothioic O,S-acid Chemical class OC(S)=O HDFRDWFLWVCOGP-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 150000004662 dithiols Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000011090 industrial biotechnology method and process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- UJHLGDUCOCXGBW-UHFFFAOYSA-N oxocobalt trioxomolybdenum Chemical compound O=[Co].O=[Mo](=O)=O UJHLGDUCOCXGBW-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012421 spiking Methods 0.000 description 1
- RVEZZJVBDQCTEF-UHFFFAOYSA-N sulfenic acid Chemical class SO RVEZZJVBDQCTEF-UHFFFAOYSA-N 0.000 description 1
- 150000003566 thiocarboxylic acids Chemical class 0.000 description 1
- RSPCKAHMRANGJZ-UHFFFAOYSA-N thiohydroxylamine Chemical class SN RSPCKAHMRANGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/20—Sulfiding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/882—Molybdenum and cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/051—Molybdenum
- B01J27/0515—Molybdenum with iron group metals or platinum group metals
-
- 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
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/06—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
- C10G45/08—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
Definitions
- the present invention relates to the field of hydrotreating hydrocarbon feedstocks and more particularly relates to a process for the sulfurization of catalysts used for this purpose.
- hydrotreatment catalysts of hydrocarbon feedstocks concerned by the present invention, are used under suitable conditions for converting, in the presence of hydrogen, the organosulfur compounds into hydrogen sulfide, an operation which is called hydrodesulfurization (HDS), and for converting the organo-nitrogen compounds in ammonia in a process called hydro-denitrogenation (HDN).
- HDS hydrodesulfurization
- HDN hydro-denitrogenation
- These catalysts are generally based on metals of groups VI B and VIII of the periodic table of elements, such as molybdenum, tungsten, nickel and cobalt.
- the most common hydrotreatment catalysts are formulated from cobalt-molybdenum (Co-Mo), nickel-molybdenum (Ni-Mo) and nickel-tungsten (Ni-W) systems, deposited on porous mineral supports such as aluminas, silicas, silica-aluminas.
- Co-Mo cobalt-molybdenum
- Ni-Mo nickel-molybdenum
- Ni-W nickel-tungsten
- the method mainly used in the past by refiners consisted of sulfurizing the catalysts with sulfur-containing petroleum feedstocks, but this technique had significant drawbacks because of the difficulty of transforming the sulfur-containing compounds into hydrogen-sulfur.
- the sulfurizations started at low temperature, had to be carried out slowly to obtain complete sulfurization of the catalysts at high temperature.
- Sulfur additives have been proposed to improve the sulfurization of the catalysts.
- the method consists in incorporating a sulfur compound (spiking agent) into a filler such as a naphtha or into a particular cut such as a VGO (vacuum gas oil) or an LGO (light gas oil).
- This operation has the effect of eliminating the organic solvent and ensuring the fixing of the sulfur to the catalyst via the organic polysulphides.
- the catalyst is stable in air and can be handled without special precautions. It is supplied in this state to the user who, after loading into the hydrotreatment reactor, can complete the sulfurization of the catalyst under hydrogen for the total transformation of metals into metal sulfides.
- the catalyst is introduced into the hydrotreatment reactor in oxide form and is sulfurized in the presence of the sulfurizing agent under a stream of hydrogen as opposed to "ex situ" presulphurization where the catalyst is presulphurized in outside the hydrotreatment reactor.
- the present invention now relates to a particular mode of implementation "in situ" of this tertiary mercaptan. It has indeed been found, surprisingly, that the prior "in situ” introduction of the tertiary mercaptan in the absence of hydrogen, followed by the subsequent introduction into the same reactor of the other sulfurizing agent (for example, dimethyldisulfide) in the presence of hydrogen this time, also made it possible to obtain significantly more active catalysts than those sulfide with dimethyldisulfide alone.
- the other sulfurizing agent for example, dimethyldisulfide
- the subject of the invention is therefore a process for the in situ sulfurization of a metal hydrotreatment catalyst comprising a step of treating the catalyst with a tertiary mercaptan in the absence of hydrogen, followed in the same reactor by a step of treatment with another sulfurizing agent in the presence of hydrogen.
- the tertiary mercaptans relating to the present invention are the same as those mentioned in patent FR 2 758 478 and correspond to the general formula:
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 identical or different, each represent a hydrogen atom or an alkyl radical, linear or branched, aryl, alkylaryl or aralkyl, these radicals being able to contain one or more heteroatoms such as oxygen and / or sulfur.
- the preferred tertiary mercaptans of the invention are those which contain from 4 to 16 carbon atoms. Such mercaptans are manufactured industrially from hydrogen sulphide and olefins by catalytic processes such as those described in particular in US patents 4,102,931, EP 101,356 and EP 329,521. Tertiobutylmercaptan (TBM) is thus manufactured at from isobutene, tertiononylmercaptan (TNM) from tripropylene and tertiododecylmercaptan (TDM) from tetrapropylene or triisobutylene. CT is the most particularly preferred tertiary mercaptan.
- the first step of the process according to the invention essentially consists in incorporating the tertiary mercaptan in the pores of the catalyst and in subjecting the catalyst thus impregnated to thermal activation. under an atmosphere of an inert gas (for example, nitrogen or methane).
- an inert gas for example, nitrogen or methane
- the impregnation of the catalyst it is possible to use pure tertiary mercaptan, but it is advantageous to use it in the form of a solution in an organic solvent (preferably an alkane or a desulfurized gas oil) the concentration in tertiary mercaptan of this solution which can vary within wide limits depending on the nature of the tertiary mercaptan, its sulfur content and the pore volume of the catalyst to be sulfurized.
- an organic solvent preferably an alkane or a desulfurized gas oil
- the first method when the pore volume is saturated, consists in passing a volume of solution comprising the tertiary mercaptan and the organic solvent described above in the desired proportions over the catalyst.
- the volume of this solution corresponds to the total pore volume of the mass of catalyst.
- This volume is then slightly increased to take account of the inert wetting volume (SiC - Carborundum) which is placed before the catalyst.
- the second method by recirculation, consists in circulating in a loop a volume of solution comprising the tertiary mercaptan and the organic solvent in the desired proportions on the catalyst. This volume of solution is greater than the total pore volume of the mass of catalyst. Analysis over time shows that the recycled solution depletes tertiary mercaptan and that it is retained by the catalyst.
- the thermal activation is carried out at a temperature which can range from 50 to 250 ° C., but is preferably between 100 and 175 ° C.
- the pressure is not a critical parameter and can range from atmospheric pressure up to 35 bars.
- the sulfur compounds to be used as sulfurizing agents in the second step of the process according to the invention can be of different types: feed to be desulphurized, carbon sulphide, light mercaptans (for example, ethyl mercaptan and n-butyl mercaptan), dimethyl sulphide, dimethyldisulphide (DMDS), and optionally polysulfides such as ditertiononylpolysulfide or ditertiobutylpolysulfide; can also be used polysulfides obtained from sulfur and olefins.
- DMDS is the most particularly preferred sulfurizing agent.
- This sulfurization agent is generally introduced in mixture with a diesel fuel, under a hydrogen pressure which can range from atmospheric pressure up to 200 bars, but is preferably between 10 and 50 bars, pressure range commonly used industrially.
- This second step of the process according to the invention (in situ treatment of the catalyst with the other sulfurizing agent in the presence of hydrogen) is carried out at a temperature which can range up to 350 ° C .; a higher temperature would reduce the sulfurization time, but would increase the risk of coking. It is advantageous to carry out this second stage in two stages:
- the hydrogen coverage expressed by the ratio of the volume flow rate of hydrogen in normal liters to the volume flow rate of diesel fuel in liters can be between 50 and 500 Nl / I, preferably between 100 and 300 Nl / I.
- the hourly space velocity (WH), defined as the ratio between the hourly volume flow of diesel fuel and the volume of catalyst, can range from 0.1 to 5 h “1 and is preferably between 1 and 3 h "1 , the interval commonly used industrially.
- the total amount of sulfur supplied by the tertiary mercaptan and the other sulfurizing agent can range from 100 to 250% of the weight of sulfur stoichiometrically required for the total conversion of the oxides of the catalyst to sulphides.
- the proportion of tertiary mercaptan, used in the implementation of the process according to the invention, can represent from 1 to 100% of the weight of total sulfur necessary for the sulfurization of the catalyst.
- the sulfur provided by the tertiary mercaptan has a particularly sensitive effect from 10% by weight of the total sulfur necessary for the sulfurization of the catalyst.
- Examples 1 and 2 presented are to show the gains in catalytic activity which can be obtained in a hydrotreatment test reaction, hydrodesulfurization (HDS) of thiophene, with an industrial catalyst Co-Mo / alumina which has been subjected to in-situ sulfurization under conventional sulfurization conditions (Example 1) and in-situ sulfurization under conditions specific to the present invention (Example 2).
- the purpose of Examples 3 and 4 is to illustrate the in-situ impregnation of the catalyst with tertiary mercaptan according to the recirculation method.
- the catalyst used is a commercial hydrodesulfurization catalyst (KF756 from the company AKZO), consisting of cobalt and molybdenum oxides supported on alumina and having the following characteristics: - form: four-lobe
- the operation was carried out in a reactor (internal volume: 120 ml) placed in an oven with three heating zones and provided at its outlet with a device making it possible to separate the liquid phase and the gas phase and to recycle them.
- a sampler is used to collect liquids in order to determine the total sulfur level present in the diesel fuel and then to carry out analyzes by gas chromatography.
- 30 g of catalyst (approximately 40 ml) were introduced between two layers of carborundum (SiC), an inert agent which promotes the wetting of the catalyst and which also serves as a thermal buffer.
- SiC carborundum
- the catalyst was wetted with a diesel fuel obtained from the atmospheric distillation of crude oil (Straight Run GasOil; hereinafter SRGO) and having the characteristics gathered in the following table:
- the hydrodesulfurization reaction of the thiophene was carried out at atmospheric pressure according to the following operating protocol: The temperature of the reactor is maintained at 400 ° C., while a mixture
- H2S-H2 with an H2S content of 2% by volume and a gas flow rate set at 5.4 l / h is introduced into the reactor.
- the hydrogen is sent to a saturator containing the liquid thiophene thermostatically controlled at a temperature such that the partial pressure of the thiophene in the gas entering the reactor is 60 torr (8 kPa).
- the gaseous effluents leaving the reactor are analyzed by chromatography to determine the unconverted thiophene and the C 4 hydrocarbons formed. The reaction is followed for 3 hours with periodic analyzes of the gaseous effluents.
- the evaluation of the activity of the catalyst for the hydrodesulfurization test reaction is determined by the rate of disappearance of the thiophene under these conditions.
- this reference test has been assigned a relative activity expressed in RVA (Relative Volumic
- RVA 100 xk / k ref of 126.
- the solution is recirculated in an up-flow with respect to the catalytic bed with a flow rate of 80 cm 3 / h, under a nitrogen flow of 20 l / h at a pressure of 4 bars, and with a temperature rise of 50 ° C / h up to a plateau temperature of 150 ° C.
- the analysis of the liquid recycle shows that 83%> of the TDM initially present reacted on the catalyst.
- the solution is recirculated in up-flow relative to the catalytic bed with a flow rate of 80 cm3 / h, under a nitrogen flow of 20 l / h at a pressure of 4 bar, and with a temperature rise of 50 ° C / h up to a plateau temperature of 120 ° C.
- the 120 ° C level is maintained for 1.5 hours, then with a rise of 50 ° C / h, a second level of 135 ° C is reached which is maintained for 2 hours.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0102410 | 2001-02-22 | ||
| FR0102410A FR2820991B1 (fr) | 2001-02-22 | 2001-02-22 | Procede de sulfuration des catalyseurs d'hydrotraitement |
| PCT/FR2002/000548 WO2002066161A1 (fr) | 2001-02-22 | 2002-02-13 | Procede de sulfuration des catalyseurs d'hydrotraitement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1361923A1 true EP1361923A1 (fr) | 2003-11-19 |
Family
ID=8860314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02706852A Ceased EP1361923A1 (fr) | 2001-02-22 | 2002-02-13 | Procede de sulfuration des catalyseurs d'hydrotraitement |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040112795A1 (fr) |
| EP (1) | EP1361923A1 (fr) |
| JP (1) | JP2004528962A (fr) |
| KR (1) | KR20030080228A (fr) |
| AR (1) | AR032838A1 (fr) |
| CA (1) | CA2438536A1 (fr) |
| FR (1) | FR2820991B1 (fr) |
| WO (1) | WO2002066161A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2850041B1 (fr) * | 2003-01-16 | 2006-07-07 | Totalfinaelf France | Catalyseur d'hydrotraitement, son procede de preparation et son utilisation dans un procede de purification d'hydrocarbures. |
| FR2910348B1 (fr) * | 2006-12-22 | 2012-05-18 | Arkema France | Agent de sulfuration de catalyseur d'hydrotraitement et son utilisation pour la presulfuration in-situ et ex-situ |
| KR101010369B1 (ko) * | 2008-12-22 | 2011-01-25 | (주)세한디앤티 | 접이식 ∩자형 볼라드 |
| KR102085613B1 (ko) * | 2017-12-14 | 2020-03-06 | 주식회사 포스코 | 황화 금속 촉매의 계내 재생 방법 |
| CN110653007B (zh) * | 2018-06-29 | 2022-08-09 | 中国石油化工股份有限公司 | 加氢催化剂开工硫化方法 |
| US11413606B2 (en) * | 2019-08-05 | 2022-08-16 | King Fahd University Of Petroleum And Minerals | ZrCe-SBA-15-NiMo Hydrodesulfurization catalyst |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL256096A (fr) * | 1959-09-21 | |||
| US3140994A (en) * | 1961-07-12 | 1964-07-14 | Socony Mobil Oil Co Inc | Method of reducing nitrogen to not more than 1 p. p. m. in reformer feed |
| US3732155A (en) * | 1971-03-31 | 1973-05-08 | Exxon Research Engineering Co | Two-stage hydrodesulfurization process with hydrogen addition in the first stage |
| US4124491A (en) * | 1972-05-09 | 1978-11-07 | Uop Inc. | Hydrocarbon conversion with a selectively sulfided acidic multimetallic catalytic composite |
| US3840474A (en) * | 1972-11-13 | 1974-10-08 | Gulf Research Development Co | Method for sulfiding supported metal catalysts |
| US4048115A (en) * | 1976-06-18 | 1977-09-13 | Uop Inc. | Hydrodesulfurization catalyst and method of preparation |
| DE2803284A1 (de) * | 1977-01-31 | 1978-08-03 | Inst Francais Du Petrol | Katalytisches verfahren zur reformierung bzw. herstellung von aromatischen kohlenwasserstoffen |
| US4102931A (en) * | 1977-05-17 | 1978-07-25 | Pennwalt Corporation | Manufacture of tertiary mercaptans using zeolite catalysts |
| US4176087A (en) * | 1977-06-20 | 1979-11-27 | Conoco Methanation Company | Method for activating a hydrodesulfurization catalyst |
| US4118342A (en) * | 1977-06-21 | 1978-10-03 | Labofina S. A. | Process for producing catalysts |
| US4132632A (en) * | 1978-03-31 | 1979-01-02 | Standard Oil Company (Indiana) | Selective hydrodesulfurization of cracked naphtha |
| FR2457317A1 (fr) * | 1979-05-21 | 1980-12-19 | Inst Francais Du Petrole | Procede et catalyseurs de desulfuration selective de coupes olefiniques |
| FR2548205B1 (fr) * | 1983-06-30 | 1985-11-29 | Eurecat Europ Retrait Catalys | Procede de presulfuration de catalyseur de traitement d'hydrocarbures |
| DE3562987D1 (en) * | 1984-10-30 | 1988-07-07 | Eurecat Europ Retrait Catalys | Method for presulfiding a catalyst for the treatment of hydrocarbons |
| US4725569A (en) * | 1984-11-27 | 1988-02-16 | Tuszynski William J | Organopolysulfide-impregnated catalyst and methods of preparation and use |
| EP0289211B1 (fr) * | 1987-04-22 | 1993-09-29 | Sumitomo Metal Mining Company Limited | Catalyseurs d'hydrotraitement d'hydrocarbures et procédé pour leur activation |
| DE3861642D1 (de) * | 1987-07-02 | 1991-02-28 | Sumitomo Metal Mining Co | Katalysator zur wasserstoffbehandlung von kohlenwasserstoffen und methode zu dessen herstellung. |
| US4820679A (en) * | 1987-11-20 | 1989-04-11 | Shell Oil Company | Hydrotreating catalysts prepared from hydrogels |
| DE68926764T2 (de) * | 1988-08-19 | 1996-10-31 | Sumitomo Metal Mining Co | Kohlenwasserstoffbehandlungskatalysatoren und Verfahren zu deren Herstellung |
| US4943547A (en) * | 1988-09-13 | 1990-07-24 | Seamans James D | Method of presulfiding a hydrotreating catalyst |
| FR2758478B1 (fr) * | 1997-01-21 | 1999-02-26 | Elf Aquitaine | Procede pour la presulfuration de catalyseurs |
| WO2001044408A1 (fr) * | 1999-12-16 | 2001-06-21 | Chevron U.S.A. Inc. | Cuvees de remplacement d'hydrotraitement de presulfuration d'un catalyseur |
| US20040011705A1 (en) * | 2001-11-28 | 2004-01-22 | Drake Charles A. | Hydrodesulfurization catalyst and processes therefor and therewith |
-
2001
- 2001-02-22 FR FR0102410A patent/FR2820991B1/fr not_active Expired - Fee Related
-
2002
- 2002-02-13 CA CA002438536A patent/CA2438536A1/fr not_active Abandoned
- 2002-02-13 US US10/468,936 patent/US20040112795A1/en not_active Abandoned
- 2002-02-13 KR KR10-2003-7011028A patent/KR20030080228A/ko not_active Ceased
- 2002-02-13 EP EP02706852A patent/EP1361923A1/fr not_active Ceased
- 2002-02-13 JP JP2002565711A patent/JP2004528962A/ja active Pending
- 2002-02-13 WO PCT/FR2002/000548 patent/WO2002066161A1/fr not_active Ceased
- 2002-02-22 AR ARP020100627A patent/AR032838A1/es not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02066161A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002066161A1 (fr) | 2002-08-29 |
| JP2004528962A (ja) | 2004-09-24 |
| FR2820991B1 (fr) | 2003-10-03 |
| FR2820991A1 (fr) | 2002-08-23 |
| US20040112795A1 (en) | 2004-06-17 |
| KR20030080228A (ko) | 2003-10-11 |
| AR032838A1 (es) | 2003-11-26 |
| CA2438536A1 (fr) | 2002-08-29 |
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