CA2114547A1 - A Method of Presulfurizing a Catalyst - Google Patents
A Method of Presulfurizing a CatalystInfo
- Publication number
- CA2114547A1 CA2114547A1 CA2114547A CA2114547A CA2114547A1 CA 2114547 A1 CA2114547 A1 CA 2114547A1 CA 2114547 A CA2114547 A CA 2114547A CA 2114547 A CA2114547 A CA 2114547A CA 2114547 A1 CA2114547 A1 CA 2114547A1
- Authority
- CA
- Canada
- Prior art keywords
- catalyst
- presulfurizing
- sulfidable
- elemental sulfur
- sulfur
- 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.)
- Granted
Links
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
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
- C10G47/06—Sulfides
-
- 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
- B01J27/049—Sulfides with chromium, molybdenum, tungsten or polonium with iron group metals or platinum group metals
-
- 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
-
- 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
- C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
- C10G49/02—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00 characterised by the catalyst used
- C10G49/04—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00 characterised by the catalyst used containing nickel, cobalt, chromium, molybdenum, or tungsten metals, or compounds thereof
Abstract
The invention relates to an improved method of presulfurizing a sulfidable metal or metal oxide-containing catalyst which sulfur stripping upon start-up of a reactor and improves catalyst activity. The method comprises contacting porous particles of the sulfidable catalyst with elemental sulfur at a temperature such that said elemental sulfur is incorporated in the pores of said catalyst by sublimation and/or melting and at the same time or subsequently heating the catalyst particles in the presence of a liquid olefinic hydrocarbon at a temperature greater than 150 °C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/737,630 US5215954A (en) | 1991-07-30 | 1991-07-30 | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst |
US737,630 | 1991-07-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2114547A1 true CA2114547A1 (en) | 1993-02-18 |
CA2114547C CA2114547C (en) | 1998-09-22 |
Family
ID=24964643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002114547A Expired - Lifetime CA2114547C (en) | 1991-07-30 | 1992-07-28 | A method of presulfurizing a catalyst |
Country Status (8)
Country | Link |
---|---|
US (4) | US5215954A (en) |
EP (1) | EP0598004B1 (en) |
JP (1) | JP3412764B2 (en) |
CA (1) | CA2114547C (en) |
DE (1) | DE69215877T2 (en) |
SA (1) | SA92130034B1 (en) |
SG (1) | SG52259A1 (en) |
WO (1) | WO1993002793A1 (en) |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5215954A (en) * | 1991-07-30 | 1993-06-01 | Cri International, Inc. | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst |
FR2689420B1 (en) * | 1992-04-01 | 1994-06-17 | Eurecat Europ Retrait Catalys | PROCESS FOR PRESULFURIZING A HYDROCARBON PROCESSING CATALYST. |
ZA942966B (en) * | 1993-05-04 | 1995-01-19 | Cri Int Inc | A method of treating spontaneously combustible catalysts. |
US6093309A (en) * | 1993-05-04 | 2000-07-25 | Cri International, Inc. | Method of treating spontaneously combustible catalysts |
US5360779A (en) * | 1993-10-14 | 1994-11-01 | Phillips Petroleum Company | Preparation of supported sulfur compositions |
FR2725381B1 (en) * | 1994-10-07 | 1996-12-13 | Eurecat Europ Retrait Catalys | OFF-SITE PRETREATMENT PROCESS FOR A HYDROCARBON TREATMENT CATALYST |
JPH08129007A (en) * | 1994-10-31 | 1996-05-21 | Sekiyu Sangyo Kasseika Center | Analysis of sulfur |
FR2743512B1 (en) | 1996-01-17 | 1998-03-13 | Eurecat Europ Retrait Catalys | METHOD FOR INCORPORATING SULFUR IN THE POROSITY OF A HYDROCARBON PROCESSING CATALYST |
US5821191A (en) * | 1996-06-17 | 1998-10-13 | Shell Oil Company | Process for presulfiding hydrocarbon processing catalysts |
US5786293A (en) * | 1996-06-17 | 1998-07-28 | Shell Oil Company | Process for presulfiding hydrocarbon processing catalysts |
FR2755379B1 (en) * | 1996-11-07 | 1999-01-08 | Inst Francais Du Petrole | METHOD FOR SULFURIZING CATALYSTS COMPRISING AT LEAST ONE GROUP VI METAL AND / OR AT LEAST ONE GROUP VIII METAL |
FR2758478B1 (en) | 1997-01-21 | 1999-02-26 | Elf Aquitaine | PROCESS FOR THE PRESULFURIZATION OF CATALYSTS |
US5958816A (en) * | 1997-02-28 | 1999-09-28 | Tricat, Inc. | Method of presulfiding and passivating a hydrocarbon conversion catalyst |
DE19745191A1 (en) * | 1997-10-13 | 1999-04-15 | Ftu Gmbh Forschung Und Tech En | Material for purifying gas to remove mercury and other pollutants |
US6444865B1 (en) | 1997-12-01 | 2002-09-03 | Shell Oil Company | Process wherein a hydrocarbon feedstock is contacted with a catalyst |
US6315890B1 (en) * | 1998-05-05 | 2001-11-13 | Exxonmobil Chemical Patents Inc. | Naphtha cracking and hydroprocessing process for low emissions, high octane fuels |
US6803494B1 (en) | 1998-05-05 | 2004-10-12 | Exxonmobil Chemical Patents Inc. | Process for selectively producing propylene in a fluid catalytic cracking process |
US6602403B1 (en) | 1998-05-05 | 2003-08-05 | Exxonmobil Chemical Patents Inc. | Process for selectively producing high octane naphtha |
US6455750B1 (en) | 1998-05-05 | 2002-09-24 | Exxonmobil Chemical Patents Inc. | Process for selectively producing light olefins |
FR2780303B1 (en) * | 1998-06-25 | 2000-07-28 | Inst Francais Du Petrole | PROCESS FOR SULFURIZING CATALYSTS IN A REDUCING MEDIUM AND USE OF THE SULFURED CATALYST IN REFINING OR HYDROCONVERSION REACTIONS |
US6562752B2 (en) * | 1998-06-25 | 2003-05-13 | Institut Francais Du Petrole | Metallic sulphide catalysts, processes for synthesising said catalysts and use thereof |
FR2780314B1 (en) * | 1998-06-25 | 2000-08-11 | Inst Francais Du Petrole | PROCESS FOR THE SULPHIDATION OF CATALYSTS IN THE PRESENCE OF CARBON AND ELEMENTAL SULFUR |
FR2784312B1 (en) * | 1998-10-12 | 2000-11-10 | Eurecat Europ Retrait Catalys | OFF-SITE PRESULFURIZATION IN THE PRESENCE OF HYDROCARBON MOLECULE |
US6291391B1 (en) | 1998-11-12 | 2001-09-18 | Ifp North America, Inc. | Method for presulfiding and preconditioning of residuum hydroconversion catalyst |
CN1107707C (en) * | 1999-01-25 | 2003-05-07 | 中国石油化工集团公司 | Process for presulfurizing hydrocatalyst |
US6365542B1 (en) * | 1999-01-25 | 2002-04-02 | China Petrochemical Corporation And Research Institute Of Petroleum Processing | Presulfurization method of hydrogenation catalyst |
US6218333B1 (en) * | 1999-02-15 | 2001-04-17 | Shell Oil Company | Preparation of a hydrotreating catalyst |
US6281158B1 (en) | 1999-02-15 | 2001-08-28 | Shell Oil Company | Preparation of a co-containing hydrotreating catalyst precursor and catalyst |
JP2004500445A (en) | 1999-05-28 | 2004-01-08 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | Manufacturing method of lubricating base oil |
JP4898069B2 (en) * | 2000-06-19 | 2012-03-14 | アンスティテュ フランセ デュ ペトロール | Presulfidation and preconditioning method of residual oil hydroconversion catalyst |
RU2278147C2 (en) | 2001-04-19 | 2006-06-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Method of production of the base oil with the high content of the saturated hydrocarbons |
US6929067B2 (en) | 2001-04-24 | 2005-08-16 | Shell Oil Company | Heat sources with conductive material for in situ thermal processing of an oil shale formation |
WO2003033630A1 (en) | 2001-10-16 | 2003-04-24 | Shell Internationale Research Maatschappij B.V. | Upgrading of pre-processed used oils |
CA2463110C (en) | 2001-10-24 | 2010-11-30 | Shell Canada Limited | In situ recovery from a hydrocarbon containing formation using barriers |
US7173160B2 (en) * | 2002-07-18 | 2007-02-06 | Chevron U.S.A. Inc. | Processes for concentrating higher diamondoids |
US20050085378A1 (en) * | 2003-09-11 | 2005-04-21 | Peter Birke | Particulate catalyst comprising pyrophoric metal and stabilized by wax |
US7959796B2 (en) | 2003-12-19 | 2011-06-14 | Shell Oil Company | Systems, methods, and catalysts for producing a crude product |
BRPI0405843B1 (en) | 2003-12-19 | 2014-09-09 | Shell Int Research | Methods of producing a crude oil product. |
US7413646B2 (en) | 2003-12-19 | 2008-08-19 | Shell Oil Company | Systems and methods of producing a crude product |
US7745369B2 (en) | 2003-12-19 | 2010-06-29 | Shell Oil Company | Method and catalyst for producing a crude product with minimal hydrogen uptake |
DK1737571T3 (en) * | 2004-01-20 | 2016-10-03 | Shell Int Research | PROCESS FOR RECOVERY OF CATALYTIC ACTIVITY OF A SPENT hydroprocessing catalyst. |
RU2372143C2 (en) * | 2004-01-20 | 2009-11-10 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Method of regenerating catalytic activity of spent water treatment catalyst, spent water treatment catalyst with regenerated catalytic activity, and water treatment method |
US7678731B2 (en) * | 2004-09-10 | 2010-03-16 | Chevron Usa Inc. | Hydroprocessing bulk catalyst and uses thereof |
US20060234876A1 (en) * | 2005-04-11 | 2006-10-19 | Bhan Opinder K | Systems, methods, and catalysts for producing a crude product |
CN101166808B (en) | 2005-04-11 | 2013-03-27 | 国际壳牌研究有限公司 | Method and catalyst for producing a crude product having a reduced MCR content |
WO2006110556A1 (en) | 2005-04-11 | 2006-10-19 | Shell International Research Maatschappij B.V. | Method and catalyst for producing a crude product having a reduced nitroge content |
US8507404B2 (en) * | 2005-07-12 | 2013-08-13 | Exxonmobil Research And Engineering Company | Regenerable sulfur traps for on-board vehicle applications |
NZ567415A (en) | 2005-10-24 | 2010-12-24 | Shell Int Research | Solution mining systems and methods for treating hyrdocarbon containing formations |
US7793722B2 (en) | 2006-04-21 | 2010-09-14 | Shell Oil Company | Non-ferromagnetic overburden casing |
JP5086344B2 (en) | 2006-07-21 | 2012-11-28 | 中國石油化工股▲フン▼有限公司 | Hydrogenation catalyst composition and method for its preparation and use thereof |
US7749374B2 (en) | 2006-10-06 | 2010-07-06 | Shell Oil Company | Methods for producing a crude product |
WO2008051822A2 (en) | 2006-10-20 | 2008-05-02 | Shell Oil Company | Heating tar sands formations to visbreaking temperatures |
AU2008242797B2 (en) | 2007-04-20 | 2011-07-14 | Shell Internationale Research Maatschappij B.V. | In situ recovery from residually heated sections in a hydrocarbon containing formation |
RU2496067C2 (en) | 2007-10-19 | 2013-10-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Cryogenic treatment of gas |
CN101418236B (en) * | 2007-10-26 | 2012-09-05 | 中国石油化工股份有限公司 | Hydrocarbons hydrogenation method |
US8262905B2 (en) | 2009-03-19 | 2012-09-11 | Shell Oil Company | Oil and polar additive impregnated composition useful in the catalytic hydroprocessing of hydrocarbons, a method of making such catalyst, and a process of using such catalyst |
CN101665745B (en) * | 2009-09-16 | 2012-02-22 | 长春惠工净化工业有限公司 | Ex-situ presulfiding method of hyrorefining catalysts |
US9132421B2 (en) * | 2009-11-09 | 2015-09-15 | Shell Oil Company | Composition useful in the hydroprocessing of a hydrocarbon feedstock |
US8268251B2 (en) * | 2010-03-29 | 2012-09-18 | International Business Machines Corporation | Early warning sulfur detection based on change in fluorescence intensity of polymer-bound phosphine compound |
CN103805235B (en) * | 2012-11-03 | 2015-07-22 | 中国石油化工股份有限公司 | Wet-process starting method of hydrogenation device, low-energy-consumption hydrogenation technology and hydrogenation equipment |
US9266056B2 (en) | 2013-05-07 | 2016-02-23 | Uop Llc | Process for initiating operations of a separation apparatus |
EP2944367A1 (en) | 2014-05-16 | 2015-11-18 | Shell International Research Maatschappij B.V. | Process for reducing the total sulphur content of a gas stream |
CN106147842B (en) * | 2015-05-14 | 2018-08-10 | 中国石油天然气股份有限公司 | A kind of passivation start-up method of the gasoline hydrogenation modifying catalyst containing molecular sieve |
CN106140320B (en) * | 2015-05-14 | 2018-09-04 | 中国石油天然气股份有限公司 | The passivating method of low boiling point sulfide heaviness catalyst |
CN106147829B (en) * | 2015-05-14 | 2018-08-10 | 中国石油天然气股份有限公司 | The start-up method of the gasoline hydrogenation modifying catalyst containing molecular sieve |
CN106147828B (en) * | 2015-05-14 | 2018-10-16 | 中国石油天然气股份有限公司 | A kind of start-up method of the sulfide of low boiling point containing molecular sieve heaviness catalyst |
CN108026450B (en) | 2015-09-07 | 2020-11-27 | 国际壳牌研究有限公司 | Conversion of biomass to liquid hydrocarbon material |
WO2018064990A1 (en) * | 2016-10-03 | 2018-04-12 | Ecopetrol S.A. | A method for manufacturing catalysts from deactivated hydrotreatment catalysts and the application thereof in a dispersed-bed hydrocracking process |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA759938A (en) * | 1967-05-30 | D. Holmes Peter | Catalysts and reactors containing said catalysts | |
US2038599A (en) * | 1931-01-30 | 1936-04-28 | Standard Ig Co | Carrying out catalytic reactions |
US3383301A (en) * | 1966-01-20 | 1968-05-14 | Gulf Research Development Co | Residue desulfurization with catalyst whose pore volume is distributed over wide range of pore sizes |
BE794334A (en) * | 1972-01-20 | 1973-07-19 | Unilever Nv | METAL SULPHIDE CATALYST DEPOSITED ON A SUPPORT |
US4089930A (en) * | 1976-02-12 | 1978-05-16 | New England Power Service Company | Process for the catalytic reduction of nitric oxide |
US4177136B1 (en) * | 1978-01-03 | 1994-05-03 | Standard Oil Co Ohio | Hydrotreating process utilizing elemental sulfur for presulfiding the catalyst |
FR2503733B1 (en) * | 1981-04-09 | 1985-09-06 | Inst Francais Du Petrole | PROCESS FOR HYDROTREATING A HYDROCARBON CHARGE IN THE PRESENCE OF A CATALYST SUBJECT TO PRESULFURATION |
US4368141A (en) * | 1981-06-24 | 1983-01-11 | Phillips Petroleum Company | Olefin disproportionation and catalyst therefor |
US4431747A (en) * | 1982-07-20 | 1984-02-14 | Exxon Research And Engineering Co. | Supported carbon-containing molybdenum and tungsten sulfide catalysts, their preparation and use |
FR2548205B1 (en) * | 1983-06-30 | 1985-11-29 | Eurecat Europ Retrait Catalys | PROCESS FOR PRESULFURIZING A HYDROCARBON PROCESSING CATALYST |
US4548920A (en) * | 1984-03-26 | 1985-10-22 | Shell Oil Company | Hydrodenitrification catalyst |
US4672049A (en) * | 1984-10-25 | 1987-06-09 | Mobil Oil Corporation | Hydroprocessing catalyst |
US4934547A (en) * | 1987-02-10 | 1990-06-19 | Helena Laboratories Corporation | Specimen collection container and non-removable cover |
US5051389A (en) * | 1987-09-16 | 1991-09-24 | Exxon Research And Engineering Company | Catalyst composition prepared by vapor depositing onto a carbon support |
US4943547A (en) * | 1988-09-13 | 1990-07-24 | Seamans James D | Method of presulfiding a hydrotreating catalyst |
US5041404A (en) * | 1988-09-13 | 1991-08-20 | Cri Ventures, Inc. | Method of presulfiding a hydrotreating, hydrocracking or tail gas treating catalyst |
US5053376A (en) * | 1990-06-04 | 1991-10-01 | Exxon Research & Engineering Company | Method of preparing a sulfided molybdenum catalyst concentrate |
US5215954A (en) * | 1991-07-30 | 1993-06-01 | Cri International, Inc. | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst |
-
1991
- 1991-07-30 US US07/737,630 patent/US5215954A/en not_active Expired - Lifetime
-
1992
- 1992-07-28 JP JP50368993A patent/JP3412764B2/en not_active Expired - Lifetime
- 1992-07-28 CA CA002114547A patent/CA2114547C/en not_active Expired - Lifetime
- 1992-07-28 WO PCT/US1992/006263 patent/WO1993002793A1/en active IP Right Grant
- 1992-07-28 SA SA92130034A patent/SA92130034B1/en unknown
- 1992-07-28 EP EP92917231A patent/EP0598004B1/en not_active Expired - Lifetime
- 1992-07-28 DE DE69215877T patent/DE69215877T2/en not_active Expired - Lifetime
- 1992-07-28 SG SG1996001485A patent/SG52259A1/en unknown
- 1992-10-30 US US07/969,660 patent/US5292702A/en not_active Expired - Lifetime
-
1993
- 1993-12-13 US US08/166,133 patent/US5468372A/en not_active Expired - Lifetime
-
1995
- 1995-10-26 US US08/548,570 patent/US5688736A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1993002793A1 (en) | 1993-02-18 |
JPH06509278A (en) | 1994-10-20 |
DE69215877D1 (en) | 1997-01-23 |
JP3412764B2 (en) | 2003-06-03 |
US5292702A (en) | 1994-03-08 |
EP0598004B1 (en) | 1996-12-11 |
CA2114547C (en) | 1998-09-22 |
US5468372A (en) | 1995-11-21 |
SA92130034B1 (en) | 2005-11-15 |
EP0598004A1 (en) | 1994-05-25 |
US5688736A (en) | 1997-11-18 |
SG52259A1 (en) | 1998-09-28 |
DE69215877T2 (en) | 1997-07-10 |
US5215954A (en) | 1993-06-01 |
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Legal Events
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EEER | Examination request | ||
MKEX | Expiry |