Claims
- 1. A process for conversion of CO/H.sub.2 into low molecular weight olefins which comprises contacting a gaseous mixture comprising CO and H.sub.2 in the ratio of about 3:1 to 1:5 (v/v) with an effective amount of a finely divided, hydrogen-activated catalyst composition comprising about 5-15 atom percent Fe, about 65-68 atom percent Si, and about 2-30 atom percent C in a reaction zone at a temperature in the range of about 150.degree. C. to about 450.degree. C. and a pressure in the range of about 10 to about 2000 kPa for a time sufficient to produce a reaction mixture comprising C.sub.2 -C.sub.6 alkenes, said hydrogen-activated catalyst having been prepared by a process which comprises contacting effective amounts, in the gaseous phase, of a silicon compound, a hydrocarbon and an organo-iron compound under conditions to produce a product and thereafter contacting the product with H.sub.2 gas at a temperature between about 450.degree. C. and about 550.degree. C. for a time sufficient to produce the hydrogen activated catalyst composition.
- 2. The process of claim 2 wherein the catalyst composition has a bulk elemental analysis wherein iron is about 10 atom percent, silicon is about 72 atom percent, and carbon is about 17 atom percent and wherein the hydrogen-activated catalyst composition comprises polycrystalline FeSi.sub.2.
- 3. The process of claim 1 wherein the gaseous mixture comprises about one volume of CO and about 2-3 volumes of H.sub.2 and wherein the pressures are about 100 to about 1000 kPa and wherein the temperature is about 250.degree.-350.degree. C.
- 4. The process of claim 1 wherein the reaction zone is a slurry-type reactor.
- 5. A process for converting CO/H.sub.2 into low molecular weight olefins which comprises contacting a gaseous mixture comprising CO and H.sub.2 in a ratio of about 3:1 to 1:5 (v/v) with an effective amount of a finely divided, hydrogen-activated catalyst composition comprising about 5-15 atom percent Fe, about 65-68 atom percent Si, and about 2-30 atom percent C in a reaction zone at a temperature in the range of about 150.degree. C. to about 450.degree. C. and a pressure in the range of about 10 to about 2000 kPa in the absence of externally supplied promotors for a time sufficient to convert said CO and H.sub.2 into a reaction mixture comprising at least about 75% C.sub.2 -C.sub.6 alkenes.
- 6. The process of claim 5 wherein the reaction mixture further comprises up to about 25% C.sub.1 -C.sub.4 alkanes.
Parent Case Info
This application is a division, of application Ser. No. 494,754, filed May 16, 1983, now U.S. Pat. No. 4,468,474.
Foreign Referenced Citations (1)
Number |
Date |
Country |
2105604 |
Mar 1983 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Haggin, C & En Oct. 26, 1981, pp. 22-24, 26-28, 31-32. |
Divisions (1)
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Number |
Date |
Country |
Parent |
494754 |
May 1983 |
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