EFFECT OF ETHENE ADDITION DURING THE FISCHER-TROPSCH REACTION

被引：34

作者：

ADESINA, AA ^{[1
]}

HUDGINS, RR ^{[1
]}

SILVESTON, PL ^{[1
]}

机构：

[1] UNIV WATERLOO, DEPT CHEM ENGN, WATERLOO N2L 3G1, ONTARIO, CANADA

来源：

APPLIED CATALYSIS | 1990年 / 62卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

cobalt oxide/kieselguhr; ethene addition; Fischer-Tropsch synthesis; selectivity (C[!sub]3+[!/sub] hydrocarbons); selectivity (higher hydrocarbons); syngas conversion;

D O I：

10.1016/S0166-9834(00)82253-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An investigation has been conducted on the addition of from 1 to 2% ethene to different feed mixtures of synthesis gas. Experiments were carried out over a reduced commercial cobalt catalyst at a temperature of 473 K and 110 kPa pressure. Hydrocarbons from C3 to C7 revealed rate increases of from 50 to 100%. Interestingly, methane production rates were unchanged, suggesting that fragmentation of ethene into C1 did not occur to any appreciable extent. As a result, the relative selectivities of the higher hydrocarbons were improved. However, the certain feed compositions, the chain growth factor, α, was unaffected, reinforcing the belief that C2 species can participate as a chain initiator. A mechanism for the ethene-dosed Fischer-Tropsch reaction is also proposed. © 1990.

引用

页码：295 / 308

页数：14

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