Claims
- 1. A once-through, fixed or slurry bed Fischer Tropsch process with enhanced CO conversion activity and C.sub.5 + liquid hydrocarbon selectivity comprising contacting a feed mixture of carbon monoxide and hydrogen in a reaction zone with about 1 Vol % to about 70 Vol % water based on the total volume of feed mixture, at a pressure above one atmosphere and a temperature ranging from about 150.degree. C. to about 300.degree. C., with a catalyst selected from the group consisting of cobalt, ruthenium, and mixtures thereof on a titania support, wherein said titania support is less than 40 m.sup.2 /g, converting at least 90 Vol % of the carbon monoxide to liquid hydrocarbons, and in the substantial absence of CO.sub.2 formation.
- 2. The process of claim 1 wherein the said catalyst is promoted with one or more promoter metals when said catalyst is a cobalt catalyst.
- 3. The process of claim 2 wherein said promoter metal is selected from the group consisting of Re, Hf and mixtures thereof.
- 4. The process of claim 3 wherein said catalyst contains rhenium promoter metal.
- 5. The process of claim 1 wherein the mole ratio of H.sub.2 to CO in the feed ranges from about 0.5 to 6.
- 6. The process of claim 2 wherein the amount of cobalt catalyst ranges from about 2 wt % to about 25 wt % based on the total catalyst weight.
- 7. The process of claim 1 wherein the amount of ruthenium ranges from about 0.1 to 20 wt % ruthenium metal based on the total catalyst weight.
- 8. The process of claim 4 wherein the rhenium to cobalt ratio in said catalyst composition is greater than about 0.01 to 1.
- 9. The process of claim 2 wherein the CH.sub.4 selectivity is less than about 10%.
- 10. The process of claim 1 wherein the CO.sub.2 produced in the process is less than about 2% based on feed.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of copending U.S. Ser. No. 676,640 filed March 28, 1991 (abandoned Mar. 24, 1992), which is a continuation-in-part of U.S. Ser. No. 417,384, filed Oct. 5, 1989 (abandoned Mar. 28, 1991), which is a continuation-in-part of U.S. Ser. No. 237,355, filed Aug. 29, 1988 (abandoned Oct. 5, 1989), which is a continuation-in-part of U.S. Ser. No. 084,629, filed Aug. 11, 1987 (abandoned Aug. 29, 1988), which is a continuation-in-part of U.S. Ser. No. 814,679 filed Dec. 30, 1985 (abandoned Aug. 17, 1987), based on U.S. Ser. No. 313,565, filed Feb. 21, 1989 (abandoned Oct. 5, 1989), which is a Rule 60 continuation of U.S. Ser. No. 115,971, filed Nov. 2, 1987 (abandoned Feb. 21, 1989), based on U.S. Ser. No. 541,659, filed June 21, 1990 (abandoned Apr. 15, 1991), which is a Rule 60 continuation of U.S. Ser. No. 185,953, filed Apr. 25, 1988 (abandoned Jan. 31, 1991).
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Continuation in Parts (5)
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Number |
Date |
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Parent |
676640 |
Mar 1991 |
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Parent |
417384 |
Oct 1989 |
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Parent |
237355 |
Aug 1988 |
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Parent |
84629 |
Aug 1987 |
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Parent |
814679 |
Dec 1985 |
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