Patent EP0211577A1 successfully refreshed from Google Patents.
EP0211577A1
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Process for the production of a synthesis gas conversion catalyst
Assignee: BP PLC
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Filing: 1986-07-24
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Granted: —
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Expires: 2006-07-24
Abstract
Abstract A composition for use after reductive activation as a catalyst in the conversion of synthesis gas to hydrocarbons of carbon number greater than one, which composition before reductive activation has the formula:whereinA is an alkali metal,X is a rare earth metal,a is greater than zero and up to 5%w/w, based on the total weight of the composition,b is in the range from zero to 5% w/w, based on the total weight of the composition,x is a number such that the valence requirements of the other elements for oxygen is satisfied, and subject to the requirements of x, X constitutes the remainder of the composition,is produced by the steps of:(A) bringing together at a temperature below 50°C a rare earth metal oxide, a solution of a soluble salt of ruthenium and a precipitant comprising a carbonate and/or a bicarbonate and/or a hydroxide of an alkali metal or ammonium under conditions whereby ruthenium is precipitated in the form of a heat decomposable compound,(B) recovering the mixture of the rare earth metal oxide and the precipitated ruthenium compound obtained in step A,(C) thermally decomposing thermally decomposable compounds comprised in the mixture recovered in step (B).
Inventors
- 👤 Andrew Frank C/O The British Petroleum Co. Dyke
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:16
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/58; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/0445; C07C2523/00; C07C2523/02; C07C2523/10; C07C2523/38; C07C2523/40; C07C2523/46; C07C2523/54; C07C2523/56; C07C2523/58; C07C2523/63; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/90
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
210 words
1 A process for the production of a composition for use after reductive activation as a catalyst in the conversion of synthesis gas to hydrocarbons of carbon number greater than one, which composition before reductive activation has the formula: wherein A is an alkali metal, X is a rare earth metal, a is greater than zero and up to 5X w/w, based on the total weight of the composition, b is in the range from zero to 5X w/w, based on the total weight of the composition, x is a number such that the valence requirements of the other elements for oxygen is satisfied, and subject to the requirements of x, X constitutes the remainder of the composition, which process comprises the steps of: (A) bringing together at a temperature below 50°C a rare earth metal oxide, a solution of a soluble salt of ruthenium and a precipitant comprising a carbonate and/or a bicarbonate and/or a hydroxide of an alkali metal or ammonium under conditions whereby ruthenium is precipitated in the form of a heat decomposable compound, (B) recovering the mixture of the rare earth metal oxide and the precipitated ruthenium compound obtained in step A, (C) thermally decomposing thermally decomposable compounds comprised in the mixture recovered in step (B).
Claim 2
Dependent Claim
210 words
1 A process for the production of a composition for use after reductive activation as a catalyst in the conversion of synthesis gas to hydrocarbons of carbon number greater than one, which composition before reductive activation has the formula: wherein A is an alkali metal, X is a rare earth metal, a is greater than zero and up to 5X w/w, based on the total weight of the composition, b is in the range from zero to 5X w/w, based on the total weight of the composition, x is a number such that the valence requirements of the other elements for oxygen is satisfied, and subject to the requirements of x, X constitutes the remainder of the composition, which process comprises the steps of: (A) bringing together at a temperature below 50°C a rare earth metal oxide, a solution of a soluble salt of ruthenium and a precipitant comprising a carbonate and/or a bicarbonate and/or a hydroxide of an alkali metal or ammonium under conditions whereby ruthenium is precipitated in the form of a heat decomposable compound, (B) recovering the mixture of the rare earth metal oxide and the precipitated ruthenium compound obtained in step A, (C) thermally decomposing thermally decomposable compounds comprised in the mixture recovered in step (B).
Claim 3
Dependent Claim
18 words
2 A process according to claim 1 wherein A in the formula (I) is either sodium or potassium.
Claim 4
Dependent Claim
19 words
3 A process according to either claim 1 or claim 2 wherein X in the formula (I) is cerium.
Claim 5
Dependent Claim
23 words
4 A process according to any one of the preceding claims wherein the amount b of alkali metal is less than 1% w/w.
Claim 6
Dependent Claim
22 words
5 A process according to any one of the preceding claims wherein a in the formula (I) is less than 1% w/w.
Claim 7
Dependent Claim
22 words
6 A process according to any one of the preceding claims wherein the precipitation is carried out at a temperature below 30°C.
Claim 8
Dependent Claim
41 words
7 A process according to any one of the preceding claims wherein the thermal decomposition (step C) is effected by heating the mixture recovered in step (B) in a non-reducing atmosphere at a temperature in the range from 250 to 600°C.
Claim 9
Dependent Claim
49 words
8 A process according to any one of the preceding claims wherein the composition of formula (I) is reductively activated by contacting the composition at a pressure in the range from 1 to 100 bar and a temperature in the range from 150 to 300°C with a reducing gas.
Claim 10
Dependent Claim
56 words
9 A process for the production of hydrocarbons having a carbon number greater than one from synthesis gas which process comprises contacting synthesis gas with a catalyst comprising the reductively activated composition of formula (I) at a temperature in the range from 190 to 400°C and a pressure in the range from 0 to 100 bar.
Claim 11
Dependent Claim
56 words
9 A process for the production of hydrocarbons having a carbon number greater than one from synthesis gas which process comprises contacting synthesis gas with a catalyst comprising the reductively activated composition of formula (I) at a temperature in the range from 190 to 400°C and a pressure in the range from 0 to 100 bar.
Claim 12
Dependent Claim
30 words
10 A process according to claim 9 wherein the temperature is in the range from 250 to 350°C and the pressure is in the range from 10 to 50 bar.
Claim 13
Dependent Claim
21 words
11 A process according to either claim 9 or claim 10 wherein the process is carried out in a slurry phase.
Claim 14
Dependent Claim
25 words
12 A process according to any one of claims 9 to 11 wherein the reductively activated composition of formula (I) is combined with a zeolite.
Claim 15
Dependent Claim
16 words
13 A process according to claim 12 wherein the zeolite is ZSM-5 in the hydrogen form.
References Cited (Backward Citations)
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