F-T合成反应产物分布的研究进展

RESEARCH AND PROGRESS ON THE PRODUCT DISTRIBUTION OF THE FISCHER-TROPSCH SYNTHESIS

F-T合成的反应产物主要为不同碳数的直链烃和含氧有机物,这些产物的分布随反应条件和催化体系的不同而变化,本文总结了F-T合成产物分布的主要模型——ASF分布,“双α”分布和自由链增长几率模型等。综述了H_2/CO比,反应温度对链增长几率α的影响以及初级产物烯烃的插入反应对产物分布的影响。

The Fischer-Tropsch synthesis has been regarded as an'nontrival surface polymerization', its products can be composed by wide carbon number's hydrocarbons.The product distribution are interpreted in terms of a variety of distribution models, such as the Ander-Schulz-Flory model, the 'Double-α' distribution, and the distributed chain growth probabilities model etc. The influences of H_2/CO ratio of the feed gas and reaction temperature on chain growth probability are also reviewed. The alkene's incorporation into growing chains are probably involved in the product distribution.