CA1195278A - Layered residua treatment catalyst process and temperature profile - Google Patents
Layered residua treatment catalyst process and temperature profileInfo
- Publication number
- CA1195278A CA1195278A CA000405914A CA405914A CA1195278A CA 1195278 A CA1195278 A CA 1195278A CA 000405914 A CA000405914 A CA 000405914A CA 405914 A CA405914 A CA 405914A CA 1195278 A CA1195278 A CA 1195278A
- Authority
- CA
- Canada
- Prior art keywords
- catalyst
- zone
- percent
- effluent
- temperature
- 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
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 18
- 239000011593 sulfur Substances 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 claims description 33
- 238000007324 demetalation reaction Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 18
- 238000006477 desulfuration reaction Methods 0.000 claims description 16
- 230000023556 desulfurization Effects 0.000 claims description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 230000003197 catalytic effect Effects 0.000 claims description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- 238000010791 quenching Methods 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 7
- 150000003624 transition metals Chemical class 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- -1 polygorskite Inorganic materials 0.000 claims description 4
- 239000004113 Sepiolite Substances 0.000 claims description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 2
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 claims description 2
- 229960000892 attapulgite Drugs 0.000 claims description 2
- 229910052621 halloysite Inorganic materials 0.000 claims description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000391 magnesium silicate Substances 0.000 claims description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 2
- 235000019792 magnesium silicate Nutrition 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 229910052624 sepiolite Inorganic materials 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 abstract description 32
- 238000006243 chemical reaction Methods 0.000 description 14
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000000243 solution Substances 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000908 ammonium hydroxide Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 235000015076 Shorea robusta Nutrition 0.000 description 1
- 244000166071 Shorea robusta Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000010656 hydrometalation reaction Methods 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006263 metalation reaction Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- APVPOHHVBBYQAV-UHFFFAOYSA-N n-(4-aminophenyl)sulfonyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 APVPOHHVBBYQAV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- ACXGJHCPFCFILV-UHFFFAOYSA-M sodium;2-(4-chloro-2-methylphenoxy)acetate;3,6-dichloro-2-methoxybenzoic acid Chemical compound [Na+].COC1=C(Cl)C=CC(Cl)=C1C(O)=O.CC1=CC(Cl)=CC=C1OCC([O-])=O ACXGJHCPFCFILV-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003756 stirring Methods 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/635—0.5-1.0 ml/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- 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
- C10G2300/10—Feedstock materials
- C10G2300/107—Atmospheric residues having a boiling point of at least about 538 °C
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30602681A | 1981-09-28 | 1981-09-28 | |
| US306,026 | 1981-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1195278A true CA1195278A (en) | 1985-10-15 |
Family
ID=23183420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000405914A Expired CA1195278A (en) | 1981-09-28 | 1982-06-24 | Layered residua treatment catalyst process and temperature profile |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5863786A (ja) |
| BE (1) | BE894513A (ja) |
| CA (1) | CA1195278A (ja) |
| DE (1) | DE3229898A1 (ja) |
| FR (1) | FR2513653B1 (ja) |
| GB (1) | GB2106535B (ja) |
| NL (1) | NL8203254A (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2538811A1 (fr) * | 1982-12-30 | 1984-07-06 | Inst Francais Du Petrole | Procede de traitement d'une huile lourde ou d'une fraction d'huile lourde pour les convertir en fractions plus legeres |
| US4908344A (en) * | 1986-05-02 | 1990-03-13 | W. R. Grace & Co.-Conn. | Hydroprocessing catalyst and support having bidisperse pore structure |
| CA1284982C (en) * | 1986-05-02 | 1991-06-18 | Carmo Joseph Pereira | Hydroprocessing catalyst and support having bidisperse pore structure |
| JPH0391591A (ja) * | 1989-09-05 | 1991-04-17 | Cosmo Oil Co Ltd | 重質炭化水素油の水素化処理方法 |
| BR9003449A (pt) * | 1990-07-17 | 1992-01-21 | Petroleo Brasileiro Sa | Processo de hidrogenacao de parafinas macro e microcristalinas |
| FR2872516B1 (fr) * | 2004-07-01 | 2007-03-09 | Inst Francais Du Petrole | Procede d'hydrodesulfuration des essences mettant en oeuvre un catalyseur a porosite controlee |
| EP1925654A1 (en) * | 2006-11-22 | 2008-05-28 | Haldor Topsoe A/S | Process for the catalytic hydrotreating of silicon containing hydrocarbon feedstock |
| EP2234710A2 (en) | 2007-11-28 | 2010-10-06 | Saudi Arabian Oil Company | Process for catalytic hydrotreating of sour crude oils |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL271102A (ja) * | 1960-12-01 | |||
| US3649526A (en) * | 1969-11-17 | 1972-03-14 | Universal Oil Prod Co | Multiple-stage production of fuel oil |
| DE2353990A1 (de) * | 1972-11-09 | 1974-05-22 | Leuna Werke Veb | Verfahren zur herstellung schwefelarmer heizoele |
| US3985643A (en) * | 1973-08-30 | 1976-10-12 | Mobil Oil Corporation | Demetalation and desulfurization of oil in separate catalytic zones |
| US4196102A (en) * | 1975-12-09 | 1980-04-01 | Chiyoda Chemical Engineering & Construction Co., Ltd. | Catalysts for demetallization treatment of _hydrocarbons supported on sepiolite |
| JPS5850636B2 (ja) * | 1977-07-15 | 1983-11-11 | 千代田化工建設株式会社 | 重質炭化水素油の脱硫処理方法 |
| US4212729A (en) * | 1978-07-26 | 1980-07-15 | Standard Oil Company (Indiana) | Process for demetallation and desulfurization of heavy hydrocarbons |
| JPS58102814A (ja) * | 1981-12-14 | 1983-06-18 | 産機興業株式会社 | 天井吊アンカ− |
-
1982
- 1982-06-24 CA CA000405914A patent/CA1195278A/en not_active Expired
- 1982-08-09 JP JP57138372A patent/JPS5863786A/ja active Granted
- 1982-08-11 DE DE19823229898 patent/DE3229898A1/de active Granted
- 1982-08-19 NL NL8203254A patent/NL8203254A/nl not_active Application Discontinuation
- 1982-09-20 FR FR8215791A patent/FR2513653B1/fr not_active Expired
- 1982-09-23 GB GB08227171A patent/GB2106535B/en not_active Expired
- 1982-09-28 BE BE0/209107A patent/BE894513A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2513653B1 (fr) | 1988-06-24 |
| GB2106535A (en) | 1983-04-13 |
| DE3229898C2 (ja) | 1992-04-16 |
| JPS5863786A (ja) | 1983-04-15 |
| NL8203254A (nl) | 1983-04-18 |
| DE3229898A1 (de) | 1983-04-14 |
| BE894513A (fr) | 1983-01-17 |
| GB2106535B (en) | 1985-03-20 |
| FR2513653A1 (fr) | 1983-04-01 |
| JPH0456078B2 (ja) | 1992-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1170246A (en) | Residua demetalation/desulfurization catalyst and methods for its use | |
| KR100855411B1 (ko) | 새로운 세공 구조를 갖는 알루미나와 그 제조방법 및이로부터 제조된 촉매 | |
| US4572778A (en) | Hydroprocessing with a large pore catalyst | |
| US3891541A (en) | Process for demetalizing and desulfurizing residual oil with hydrogen and alumina-supported catalyst | |
| CA2228889C (en) | Hydroconversion process employing a catalyst with specified pore size distribution and no added silica | |
| US4054508A (en) | Demetalation and desulfurization of residual oil utilizing hydrogen and trickle beds of catalysts in three zones | |
| EP2750792B1 (en) | Catalyst support and catalysts prepared therefrom | |
| US4937218A (en) | Catalytic system for the hydroconversion of heavy oils | |
| US4431526A (en) | Multiple-stage hydroprocessing of hydrocarbon oil | |
| US4435278A (en) | Hydroprocessing with a catalyst having bimodal pore distribution | |
| JPS62199687A (ja) | 細孔の大きい触媒を用いる水素化法 | |
| JP2000000470A (ja) | 水素化処理触媒及び重質油の水素化処理方法 | |
| JPH10230163A (ja) | 重質炭化水素油の水素化処理触媒及びそれを用いる水素化処理方法 | |
| US5444033A (en) | Catalyst compositions for hydrotreating of hydrocarbon oils and process for manufacturing the same. | |
| WO1993005878A1 (en) | Resid hydroprocessing catalyst | |
| US4294687A (en) | Lubricating oil process | |
| US4888104A (en) | Catalytic system for the hydroconversion of heavy oils | |
| WO2002032570A2 (en) | Hydrodemetallation catalyst and method for making same | |
| JP2001500561A (ja) | 水素添加転化法 | |
| US6406615B1 (en) | Hydrotreating process for residual oil | |
| CA1195278A (en) | Layered residua treatment catalyst process and temperature profile | |
| US20240157344A1 (en) | Heavy hydrocarbon hydroprocessing catalyst and methods of making and using thereof | |
| EP0497436B1 (en) | Preparation of a carrier for a hydrotreating catalyst | |
| CA1313160C (en) | Ni-p-mo catalyst containing silica-alumina | |
| US4456701A (en) | Hydroprocessing catalyst having bimodal pore distribution and process for preparing the catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |