Hydrocarbon synthesis from CO and H.sub.2 using Ru supported on

Details Hydrocarbon synthesis from CO and H.sub.2 using Ru supported on Hydrocarbon synthesis from CO and H.sub.2 using Ru supported on

1976-04-05

1977-08-16

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252460, 252466R, C07C 104

Patent

active

040426149

ABSTRACT:
A new method for the synthesis of hydrocarbons with chain lengths of from 2 to 10 carbon atoms inclusive and for selective generation of olefinic hydrocarbons in this carbon number range with reduced wax formation, said products being synthesized from CO and H.sub.2 at pressures of from 100 to 3100 kPa which method comprises the steps of passing a synthesis gas stream of CO and H.sub.2 at a H.sub.2 /CO ratio of from 0.1-10 at a space velocity of from 100 hr.sup.-.sup.1 to 50,000 hr.sup.-.sup.1 over a catalyst comprising from 0.01 to 15 wt. % ruthenium on TiO.sub.2, other titanium-containing oxides or mixtures of said titanium-containing oxides for a time sufficient to effect the generation of desired olefinic hydrocarbon products, at a temperature of from 100.degree. to 500.degree. C and a pressure of from 100 to 10.sup.5 kPa (1-1000 atm). The supported ruthenium catalyst has a BET surface area of from 10 to 60 m.sup.2 g.sup.-1 of total catalyst with a ruthenium crystallite size of preferably less than 5 nm (50 A).

REFERENCES:
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patent: 2699988 (1955-01-01), McGrath et al.
patent: 2850515 (1958-09-01), Riblett et al.
Shultz et al., Report of Investigations, 6974, Bureau of Mines, 1967, pp. 1-3, 5-14, 18.
Karn et al., I & EC, Product Res & Dev., 4, No. 4, (1965) pp. 265-269.
Pichler, Brennstoff-Chemie, 19, 226-230, 1938.
Kratel, Doctoral Dissertation, Technical University Berlin-Charlottenburg, 1937, Kasser Wilhem Inst. at Mulheim-Ruhr pp. 17-35.

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