WO2004087313A1 - Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst - Google Patents
Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst Download PDFInfo
- Publication number
- WO2004087313A1 WO2004087313A1 PCT/IN2003/000117 IN0300117W WO2004087313A1 WO 2004087313 A1 WO2004087313 A1 WO 2004087313A1 IN 0300117 W IN0300117 W IN 0300117W WO 2004087313 A1 WO2004087313 A1 WO 2004087313A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- range
- catalyst
- solution
- magnesium
- cobalt
- Prior art date
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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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J23/78—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 alkali- or alkaline earth 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
-
- 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
- C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
- C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
- C10G2/32—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts
- C10G2/33—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used
- C10G2/331—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used containing group VIII-metals
- C10G2/332—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen with the use of catalysts characterised by the catalyst used containing group VIII-metals of the iron-group
Definitions
- the present invention relates to a catalyst useful in the synthesis of hydrocarbons from synthesis gas.
- the present invention also relates to a process for the preparation of a catalyst useful for the production of hydrocarbons from synthesis gas.
- the present invention particularly relates to preparation of a catalyst for production of wax from synthesis gas.
- the invention finds its usage in synthesising hydrocarbons, specifically wax, using Fisher- Tropsch Synthesis.
- Synthesis gas is a mixture of gases prepared as feedstock for a chemical reaction; for example, carbon monoxide and hydrogen to make hydrocarbons or organic chemicals, or hydrogen and nitrogen to make ammonia.
- the first commercial Fisher Tropsch Synthesis operation used cobalt catalyst which was later referred with iron catalyst. Fischer-Tropsch synthesis was used extensively in Germany during World War II.
- the activity of supported cobalt catalysts can be enhanced, or the performance modified, by the addition of a variety of metals.
- Exemplary metals include copper (U.S. Pat. Nos. 5,302,622 and 5,162,284), cerium (U.S. Pat. Nos. 3,888,792; 4,657,885; 4,801,573 and 4,880,763), rhenium (U.S. Pat. Nos. 4,088,671; 4,558,030; 4,568,663; 4,801,573 and 4,880,763) and manganese (U.S. Pat. No. 5,162,284).
- Precious metals include platinum, iridium, ruthenium and rhodium (U.S. Pat.
- a series of Shell patents (U.S. Pat. Nos. 4,522,939; 4,499,209; 4,587,008 and 4,686,238) disclose supported cobalt-silica catalysts promoted with zirconium, titanium or chromium. These catalysts are designed for fixed bed operation. Their effectiveness is dependent on the specific nature of metal incorporation on the support, i.e., by sequential impregnations and/or kneading.
- U.S. Pat. Nos. 4,801,573 and 4,880,763 recite the use of small amounts of promoter oxides chosen from elements in Groups IHB, IVB and VB (including zirconia but no promotional effect on either activity or selectivity was shown).
- US Patent No:5639798 relates to catalysts having improved activity for the production of hydrocarbons from hydrogen and carbon monoxide and to an improved hydrocarbon synthesis process. Specifically, this invention relates to a catalyst comprising cobalt supported on an inorganic oxide promoted by molybdenum and or molybdenum and zirconium.
- 4542122 discloses the development of cobalt-titania or Thorium promoted cobalt -titania catalysts wherein cobalt or cobalt and thoria is composited or dispersed upon titania containing support.
- the titania is in rutile phase.
- US Patent No.5140050 discloses the use of titania in rutile phase.
- the catalyst is prepared by spray coating the cobalt-precursor.
- US Patent No: 5036032 discloses a process wherein the support was made by impregnating the molten cobalt salt and the supports were selected from silica, magnesia, alumina, silica-alumina, titania and mixtures thereof.
- Fischer-Tropsch processes using iron-based catalysts including cobalt as a co-catalyst are known to produce gaseous and liquid hydrocarbons containing C2 -C4 olefins. Because of the importance of C2 -C4 olefins, particularly as feed stocks for the chemical industry, modifications of the Fischer-Tropsch process are constantly being pursued toward the goals of maximizing C2 -C4 olefin selectivity while maintaining high catalyst activity and stability under the reaction conditions. The main thrust of the efforts in this area has been in the area of new catalyst development.
- Fischer Tropsch catalysts giving rise to an unusual hydrocarbon product distribution. It has been found that the addition of magnesium together with zirconium on an inorganic oxide support, preferably titanium oxide, substantially increases the effectiveness of cobalt catalysts useful for the conversion of synthesis gas to hydrocarbons.
- the main object of the invention is to provide a novel catalyst useful in the synthesis of hydrocarbons from synthesis gas which obviates the drawbacks of the prior art enumerated above.
- Another object of the invention is to produce a catalyst having high selectivity.
- Yet another object of the invention is to provide a process for the synthesis of hydrocarbons from synthesis gas which is simple and economically efficient.
- the present invention provides a process for preparation of a catalyst, useful for synthesis of hydrocarbons from synthesis gas which comprises addition of Magnesium Nitrate and Cobaltous Nitrate in a desired proportion in the range of 1: 1.5 to 1:3.0 (w/w) to an appropriate amount of distilled water in the range of 1.5 to 3.5 litres so as to yield 8 to 15 wt % of the solution; warming the said solution at a temperature in the range of 60 to 90 degree Celsius under continuous stirring; addition of 8 to 15 wt % of sodium bicarbonate solution drop wise till the pH of the said solution reads in the range of 7.5 to 8.5 under continuous stirring, maintaining the temperature of the solution in the range of 60 to 90 degree Celsius; addition of ground mixture of Zirconium oxide and Titania in a proportion in the range of 1: 4 to l:6(w/w) under stirring for a time period in the range of 20 to 50 minutes; filtering the resultant solution under vacuum; washing the residue with demineralised water to make it n
- titania used is preheated at temperature in the range of 500 to 600 degree Celsius for a time period in the range of 12 to 20 hours.
- the nitrate free test is performed using conventional brown ring test.
- the preferred catalyst contain from about 5% to 50% cobalt and from about 0.1% to 10% magnesium or magnesium and zirconium.
- the improved catalyst comprises magnesium and cobalt and an titania support, the catalyst containing from about 2% to 50% cobalt and from about 0.1% to 15% magnesium and optionally from about 0.1% to 10% zirconium, based on the total weight of the catalyst, the weight ratio of magnesium to cobalt being from about 0.02 to 0.25 and the support having a particle size range of about 5 to 250 microns.
- the process of the invention comprises preparation of a catalyst useful for synthesis of hydrocarbons from synthesis gas, by the addition of Magnesium Nitrate and Cobaltous Nitrate in a desired proportion in the range of 1: 1.5 to 1:3.0 (w/w) to an appropriate amount of distilled water in the range of 1.5 to 3.5 litres so as to yield 8 to 15 wt % of the solution; warming the said solution at a temperature in the range of 60 to 90°C under continuous stirring; addition of 8 to 15 wt % of sodium bicarbonate solution drop wise till the pH of the said solution reads in the range of 7.5 to 8.5 under continuous stirring, maintaining the temperature of the solution in the range of 60 to 90°C; addition of ground mixture of Zirconium oxide and Titania in a proportion in the range of 1 : 4 to 1 :6(w/w) under stirring for a time period in the range of 20 to 50 minutes; filtering the resultant solution under vacuum; washing the residue with demineralised water to make
- Titania is preferably preheated at temperature in the range of 500 to 600°C for a time period in the range of 12 to 20 hours.
- the nitrate free test is performed using conventional brown ring test.
- the preferred catalyst contain from about 5% to 50% cobalt and from about 0.1% to 10%) magnesium or magnesium and zirconium.
- the improved catalyst comprises magnesium and cobalt and an titania support, the catalyst containing from about 2% to 50% cobalt and from about 0.1% to 15% magnesium and optionally from about 0.1% to 10% zirconium, based on the total weight of the catalyst, the weight ratio of magnesium to cobalt being from about 0.02 to 0.25 and the support having a particle size range of about 5 to 250 microns.
- the novelty of the present invention lies in preparing the catalyst, having titania in anatase phase only and having high yield and high selectivity under environment-friendly condition, using minimum number of steps in comparison to prior art processes and the inventive step lies in non-obvious steps of the process of the preparation.
- Example-1 is given by way of illustration of the present invention and should not be construed to limit the scope of the present invention.
- the resulting solution was filtered under vacuum using a vacuum pump and washed with 20 liters of demineralised water to make it nitrate free (this was checked by conventional brown ring test).
- the solid mass was transferred to a porcelain basin and dried in a moisture oven at 70 + 5°C for 10 hours. It was cooled and prepared as pellets of size (10 mm x 4mm) and crushed to small pieces, sized to -6 +14 mesh (BSS).
- Example-2 126.5 grams of cobaltous nitrate hexahydrate and 50.5 grams of magnesium nitrate hexahydrate were added to 2.66 litres of distilled water to yield 10 wt % of the solution (Solution A). 100 grams of titania (preheated at 500°C for 13 hours) and 20 grams of zirconium oxide were mixed and ground.
- Solution A was warmed at 90°C under continuous stirring and 10 wt % sodium carbonate solution, at 90°C, was added drop wise till pH of the solution became 8, where heating and addition of sodium bicarbonate were stopped.
- the ground mixture of titanium oxide and zirconium oxide was added to the solution and stirring continued for 40 minutes.
- the resulting solution was filtered under vacuum using a vacuum pump and washed with 20 liters of demineralised water to make it nitrate free (this was checked by conventional brown ring test).
- the solid mass was transferred to a porcelain basin and dried in a moisture oven at
- Solution A was warmed at 80°C under continuous stirring and 10 wt % sodium carbonate solution, at 80°C, was added drop wise till pH of the solution became 8, where heating and addition of sodium bicarbonate were stopped.
- the ground mixture of titanium oxide and zirconium oxide was added to the solution and stirring continued for 40 minutes.
- the resulting solution was filtered under vacuum using a vacuum pump and washed with 20 liters of demineralised water to make it nitrate free (this was checked by conventional brown ring test).
- the solid mass was transferred to a porcelain basin and dried in a moisture oven at
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IN2003/000117 WO2004087313A1 (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst |
JP2004570086A JP2006521913A (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas, process for producing the catalyst |
NZ543188A NZ543188A (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas comprising cobalt, magnesium and optionally zirconium on a titania support, process of preparation of catalyst |
EP03717531A EP1606052A1 (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst |
AU2003222443A AU2003222443A1 (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IN2003/000117 WO2004087313A1 (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004087313A1 true WO2004087313A1 (en) | 2004-10-14 |
Family
ID=33104966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2003/000117 WO2004087313A1 (en) | 2003-03-31 | 2003-03-31 | Catalyst for synthesis of hydrocarbons from synthesis gas, process of preparation of catalyst |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1606052A1 (en) |
JP (1) | JP2006521913A (en) |
AU (1) | AU2003222443A1 (en) |
WO (1) | WO2004087313A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4778826A (en) * | 1985-09-26 | 1988-10-18 | Amoco Corporation | Conversion of a lower alkane |
WO1999039825A1 (en) * | 1998-02-10 | 1999-08-12 | Exxon Research And Engineering Company | Titania catalysts, their preparation and use in fischer-tropsch synthesis |
WO2001028962A1 (en) * | 1999-10-15 | 2001-04-26 | Exxon Research And Engineering Company | Process for the preparation of high activity carbon monoxide hydrogenation catalyst and the catalyst composition obtained |
WO2001028963A1 (en) * | 1999-10-15 | 2001-04-26 | Exxon Research And Engineering Company | Process for preparing group viii metal-containing catalysts, catalytic compositions, use thereof in carbon monoxide hydrogenation |
-
2003
- 2003-03-31 AU AU2003222443A patent/AU2003222443A1/en not_active Abandoned
- 2003-03-31 JP JP2004570086A patent/JP2006521913A/en active Pending
- 2003-03-31 EP EP03717531A patent/EP1606052A1/en not_active Withdrawn
- 2003-03-31 WO PCT/IN2003/000117 patent/WO2004087313A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4778826A (en) * | 1985-09-26 | 1988-10-18 | Amoco Corporation | Conversion of a lower alkane |
WO1999039825A1 (en) * | 1998-02-10 | 1999-08-12 | Exxon Research And Engineering Company | Titania catalysts, their preparation and use in fischer-tropsch synthesis |
WO2001028962A1 (en) * | 1999-10-15 | 2001-04-26 | Exxon Research And Engineering Company | Process for the preparation of high activity carbon monoxide hydrogenation catalyst and the catalyst composition obtained |
WO2001028963A1 (en) * | 1999-10-15 | 2001-04-26 | Exxon Research And Engineering Company | Process for preparing group viii metal-containing catalysts, catalytic compositions, use thereof in carbon monoxide hydrogenation |
Non-Patent Citations (3)
Title |
---|
BULANOVA T F; EIDUS YA T: "Effect of Metal Oxide Promotors on the Activity and Selectivity of Cobalt Catalysts in the Synthesis of Higher Hydrocarbons from Carbon Monoxide and Hydrogen", KINET KATAL, vol. 13, no. 2, 1972, pages 507 - 509, XP009025353 * |
DATABASE ENCOMPLIT * |
EIDUS YA T; BULANOVA T F; MUZOVSKAYA O A; SERGEEVA N S: "Catalytic Synthesis of High Molecular Hydrocarbons from Carbon Monoxide and Hydrogen in the Presence of Co-MgO-Kieselguhr Catalysts Promoted with Zirconium or Titanium Dioxide", NEFTEKHIMIYA, vol. 5, no. 1, 1965, pages 68 - 75, XP009025358 * |
Also Published As
Publication number | Publication date |
---|---|
AU2003222443A1 (en) | 2004-10-25 |
JP2006521913A (en) | 2006-09-28 |
EP1606052A1 (en) | 2005-12-21 |
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