FR2506630A1 - Catalyseur d'hydrogenation pour la desulfuration et l'elimination de metaux lourds - Google Patents
Catalyseur d'hydrogenation pour la desulfuration et l'elimination de metaux lourdsInfo
- Publication number
- FR2506630A1 FR2506630A1 FR8209502A FR8209502A FR2506630A1 FR 2506630 A1 FR2506630 A1 FR 2506630A1 FR 8209502 A FR8209502 A FR 8209502A FR 8209502 A FR8209502 A FR 8209502A FR 2506630 A1 FR2506630 A1 FR 2506630A1
- Authority
- FR
- France
- Prior art keywords
- heavy metals
- removal
- hydrogenation catalyst
- sulfurization
- carbon black
- 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
- 229910001385 heavy metal Inorganic materials 0.000 title abstract 3
- 239000003054 catalyst Substances 0.000 title abstract 2
- 238000005984 hydrogenation reaction Methods 0.000 title abstract 2
- 238000005987 sulfurization reaction Methods 0.000 title 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- 239000006229 carbon black Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 239000003209 petroleum derivative Substances 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
Classifications
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- 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
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
-
- 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
- B01J23/74—Iron 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
- 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
-
- 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
- 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
- B01J35/63—Pore volume
- B01J35/638—Pore volume more than 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
-
- 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
- B01J35/66—Pore distribution
- B01J35/69—Pore distribution bimodal
-
- 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)
Abstract
L'INVENTION A POUR OBJET UN CATALYSEUR D'HYDROGENATION POUR LA DESULFURATION ET L'ELIMINATION DES METAUX LOURDS. IL COMPREND: A. AU MOINS UN COMPOSANT METALLIQUE CHOISI PARMI LES METAUX DES GROUPES VIA ET VIII DE LA CLASSIFICATION PERIODIQUE A TITRE DE COMPOSANT CATALYTIQUE ACTIF, ET B. UN SUPPORT POREUX EN ALUMINE ACTIVEE OBTENU EN FACONNANT UN MELANGE DE NOIR DE CARBONE ET D'UNE POUDRE D'ALUMINE ACTIVEE OU D'UN PRECURSEUR D'ALUMINE ACTIVEE, EN SECHANT CE MELANGE FACONNE ET EN LE SOUMETTANT A UNE CUISSON DANS UN COURANT GAZEUX CONTENANT DE L'OXYGENE POUR BRULER LE NOIR DE CARBONE. TRAITEMENT DES PRODUITS PETROLIERS POUR REDUIRE LES TENEURS EN SOUFRE ET LES DEBARRASSER DES METAUX LOURDS.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56084703A JPS57201532A (en) | 1981-06-02 | 1981-06-02 | Production of catalyst with active alumina carrier |
JP56086116A JPS57201533A (en) | 1981-06-04 | 1981-06-04 | Hydrodesulfurizing and demetallizing catalyst |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2506630A1 true FR2506630A1 (fr) | 1982-12-03 |
FR2506630B1 FR2506630B1 (fr) | 1985-07-12 |
Family
ID=26425686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8209502A Expired FR2506630B1 (fr) | 1981-06-02 | 1982-06-01 | Catalyseur d'hydrogenation pour la desulfuration et l'elimination de metaux lourds |
Country Status (9)
Country | Link |
---|---|
US (1) | US4448896A (fr) |
BE (1) | BE893369A (fr) |
CA (1) | CA1183120A (fr) |
DE (1) | DE3220671A1 (fr) |
DK (1) | DK162723C (fr) |
FR (1) | FR2506630B1 (fr) |
GB (1) | GB2101005B (fr) |
IT (1) | IT1156304B (fr) |
NL (1) | NL189850C (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0237240A2 (fr) * | 1986-02-28 | 1987-09-16 | Nippon Oil Co. Ltd. | Procédé de préparation de catalyseurs d'hydrogénation |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4624773A (en) * | 1983-08-16 | 1986-11-25 | Ashland Oil, Inc. | Large pore catalysts for heavy hydrocarbon conversion |
US4492626A (en) * | 1984-06-11 | 1985-01-08 | Phillips Petroleum Company | Hydrofining process for hydrocarbon containing feed streams |
NL8501945A (nl) * | 1984-12-07 | 1986-07-01 | Unilever Nv | Katalysator geschikt voor het ontzwavelen en de bereiding van deze katalysator. |
US4598060A (en) * | 1985-01-28 | 1986-07-01 | Shell Oil Company | Process for the preparation of wide pore catalysts |
CA1325993C (fr) * | 1988-05-16 | 1994-01-11 | Mitsui Chemicals, Incorporated | Methode permettant d'eliminer le mercure contenu dans des huiles hydrocarbures |
NL8901239A (nl) * | 1989-05-18 | 1990-12-17 | Meern Bv Engelhard De | Katalysator voor hydrogenering en/of dehydrogenering. |
CN1044337C (zh) * | 1993-11-23 | 1999-07-28 | 中国石油化工总公司 | 一种具有双重孔氧化铝载体的制备方法 |
GB9415554D0 (en) * | 1994-08-02 | 1994-09-21 | Unilever Plc | Cobalt on alumina catalysts |
CN1055877C (zh) * | 1996-03-26 | 2000-08-30 | 中国石油化工总公司抚顺石油化工研究院 | 大孔径氧化铝载体及其制备方法 |
CN1054393C (zh) | 1997-07-22 | 2000-07-12 | 中国石油化工总公司 | 一种渣油加氢脱金属催化剂 |
CN1089039C (zh) * | 1998-09-28 | 2002-08-14 | 中国石油化工集团公司 | 一种大孔氧化铝载体及其制备方法 |
CN1098914C (zh) * | 1999-09-29 | 2003-01-15 | 中国石油化工集团公司 | 一种重油加氢处理催化剂载体及其制备方法 |
WO2001030494A1 (fr) | 1999-10-27 | 2001-05-03 | Idemitsu Kosan Co., Ltd. | Catalyseur d'hydrotraitement pour huile hydrocarbonee, support pour celle-ci et procede d'hydrotraitement d'huile hydrocarbonee |
CN1115388C (zh) * | 2000-09-25 | 2003-07-23 | 中国石油化工股份有限公司 | 一种加氢保护催化剂及其制备方法 |
CN1296135C (zh) * | 2003-09-28 | 2007-01-24 | 中国石油化工股份有限公司 | 一种大孔氧化铝载体及其制备方法 |
EP1716076B1 (fr) * | 2004-01-23 | 2017-03-15 | Very Small Particle Company Pty Ltd | Procede de fabrication d'oxydes metalliques |
CN100406122C (zh) * | 2004-10-29 | 2008-07-30 | 中国石油化工股份有限公司 | 一种重、渣油加氢处理催化剂的制备方法 |
CN100363470C (zh) * | 2004-11-30 | 2008-01-23 | 中国石油化工股份有限公司 | 一种渣油加氢脱金属催化剂及其制备方法 |
CN100421784C (zh) * | 2005-04-27 | 2008-10-01 | 中国石油化工股份有限公司 | 一种含硅和硼的氧化铝干胶及其制备方法 |
MXPA05009283A (es) * | 2005-08-31 | 2007-02-27 | Mexicano Inst Petrol | Procedimiento para la preparacion de una composicion catalitica para el hidroprocesamiento de fracciones del petroleo. |
CN100434177C (zh) * | 2005-10-31 | 2008-11-19 | 中国石油化工股份有限公司 | 一种氧化铝载体的制备方法 |
CN1966616B (zh) * | 2005-11-16 | 2010-08-25 | 中国石油化工股份有限公司 | 一种加氢活性保护剂及其制备方法 |
ES2277545B1 (es) | 2005-11-18 | 2008-06-16 | Consejo Superior Investig. Cientificas | Procedimiento simplificado para la preparacion de catalizadores de metales u oxidos metalicos soportados sobre materiales porosos. |
DE102007011471B4 (de) | 2006-03-09 | 2021-09-30 | Shell Internationale Research Maatschappij B.V. | Katalysatorkombination für die hydrierende Verarbeitung von Vakuumgasölen und/oder Visbreakergasölen |
CN101239324B (zh) * | 2007-02-09 | 2010-05-19 | 中国石油化工股份有限公司 | 高活性、高中油选择性的加氢裂化催化剂及其制备方法 |
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EP3778021A4 (fr) | 2018-04-10 | 2021-11-17 | China Petroleum & Chemical Corporation | Catalyseur d'hydroraffinage, procédé de préparation associé et utilisation correspondante |
CN111097458B (zh) * | 2018-10-25 | 2022-06-07 | 中国石油化工股份有限公司 | 一种加氢脱金属催化剂及其制法 |
CN114436304B (zh) * | 2020-10-19 | 2024-02-06 | 中国石油化工股份有限公司 | 一种球形氧化铝载体的制备方法 |
CN114433118B (zh) * | 2020-10-30 | 2023-06-02 | 中国科学院宁波材料技术与工程研究所 | 沸腾床加氢催化剂及煤焦油全馏分的加工方法 |
CN114433119B (zh) * | 2020-10-30 | 2023-06-02 | 中国科学院宁波材料技术与工程研究所 | 重芳烃油加氢精制催化剂及重芳烃油生产btx的方法 |
CN114433111B (zh) * | 2020-10-30 | 2023-08-25 | 宁波中金石化有限公司 | 一种重芳烃油加氢精制催化剂及重芳烃油加工方法 |
US11577235B1 (en) * | 2021-08-13 | 2023-02-14 | Chevron U.S.A. Inc. | Layered catalyst reactor systems and processes for hydrotreatment of hydrocarbon feedstocks |
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US3361526A (en) * | 1964-06-19 | 1968-01-02 | Grace W R & Co | Process for producing alumina having a narrow pore size distribution |
FR2175762A1 (fr) * | 1972-03-14 | 1973-10-26 | Kaiser Aluminium Chem Corp | |
US3893947A (en) * | 1973-09-10 | 1975-07-08 | Union Oil Co | Group VI-B metal catalyst preparation |
FR2413323A1 (fr) * | 1977-12-30 | 1979-07-27 | American Cyanamid Co | Procede de preparation de particules d'alumine rehydratable mises en forme |
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US4356113A (en) * | 1980-11-17 | 1982-10-26 | Filtrol Corporation | Substrates with calibrated pore size and catalysts employing the same |
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US2911374A (en) * | 1957-06-06 | 1959-11-03 | American Cyanamid Co | Preparation of desulfurization catalysts |
US3075915A (en) * | 1958-06-09 | 1963-01-29 | Chemetron Corp | Hydrodesulfurization catalyst and the method of manufacture |
US3978000A (en) * | 1975-03-19 | 1976-08-31 | American Cyanamid Company | Catalysts based on carbon supports |
DE2741210C2 (de) * | 1977-09-13 | 1979-12-13 | Uop Inc., Des Plaines, Ill. (V.St.A.) | Verfahren zur Herstellung eines Katalysators sowie dessen Verwendung |
GB2055787B (en) * | 1979-08-01 | 1983-02-16 | Ass Cement Co | Closed cellular hollow refractory spheres |
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1982
- 1982-05-21 GB GB08214812A patent/GB2101005B/en not_active Expired
- 1982-05-25 NL NLAANVRAGE8202120,A patent/NL189850C/xx not_active IP Right Cessation
- 1982-06-01 CA CA000404231A patent/CA1183120A/fr not_active Expired
- 1982-06-01 BE BE0/208233A patent/BE893369A/fr not_active IP Right Cessation
- 1982-06-01 FR FR8209502A patent/FR2506630B1/fr not_active Expired
- 1982-06-01 IT IT21618/82A patent/IT1156304B/it active
- 1982-06-01 DK DK245782A patent/DK162723C/da not_active IP Right Cessation
- 1982-06-02 DE DE19823220671 patent/DE3220671A1/de active Granted
- 1982-06-03 US US06/384,626 patent/US4448896A/en not_active Expired - Lifetime
Patent Citations (7)
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US3361526A (en) * | 1964-06-19 | 1968-01-02 | Grace W R & Co | Process for producing alumina having a narrow pore size distribution |
FR2175762A1 (fr) * | 1972-03-14 | 1973-10-26 | Kaiser Aluminium Chem Corp | |
US3893947A (en) * | 1973-09-10 | 1975-07-08 | Union Oil Co | Group VI-B metal catalyst preparation |
FR2413323A1 (fr) * | 1977-12-30 | 1979-07-27 | American Cyanamid Co | Procede de preparation de particules d'alumine rehydratable mises en forme |
US4225421A (en) * | 1979-03-13 | 1980-09-30 | Standard Oil Company (Indiana) | Process for hydrotreating heavy hydrocarbons |
US4257922A (en) * | 1979-03-13 | 1981-03-24 | Electric Power Research Institute, Inc. | Process for coal liquefaction and catalyst |
US4356113A (en) * | 1980-11-17 | 1982-10-26 | Filtrol Corporation | Substrates with calibrated pore size and catalysts employing the same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0237240A2 (fr) * | 1986-02-28 | 1987-09-16 | Nippon Oil Co. Ltd. | Procédé de préparation de catalyseurs d'hydrogénation |
EP0237240A3 (fr) * | 1986-02-28 | 1988-05-11 | Nippon Oil Co. Ltd. | Procédé de préparation de catalyseurs d'hydrogénation |
Also Published As
Publication number | Publication date |
---|---|
FR2506630B1 (fr) | 1985-07-12 |
IT1156304B (it) | 1987-02-04 |
DE3220671C2 (fr) | 1993-07-29 |
DK162723C (da) | 1992-05-11 |
IT8221618A1 (it) | 1983-12-01 |
CA1183120A (fr) | 1985-02-26 |
DE3220671A1 (de) | 1982-12-16 |
NL189850C (nl) | 1993-08-16 |
DK245782A (da) | 1982-12-03 |
BE893369A (fr) | 1982-12-01 |
GB2101005A (en) | 1983-01-12 |
GB2101005B (en) | 1984-09-05 |
IT8221618A0 (it) | 1982-06-01 |
NL8202120A (nl) | 1983-01-03 |
US4448896A (en) | 1984-05-15 |
DK162723B (da) | 1991-12-02 |
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