论文部分内容阅读
本文用H_2/CO比值为2.0—9.0间的混合气体在34.5MPa和525—574K下,以平均粒径为O.27mm的FeTi_(1.1)和FeTi_2合金为催化剂,在微分反应器中进行Fisscher-Tropsch合成的反应动力学和产品分布研究.用红外光谱进行产物分布和流动态动力学的测定结果表明:甲烷是本催化系统的主要产物;随原料气中CO含量的增加,甲烷产量下降,CO_2生成量增加、CO在第Ⅷ族元素上加氢反应的速率控制段是羟基碳烯(CHOH)类的氢化进一步反应,其反应历程如下:
In this paper, the mixed gas with H_2 / CO ratio of 2.0-9.0 was used to conduct the Fisscher-Tropsch reaction at 34.5MPa and 525-574K with the average diameter of 0.27mm FeTi_ (1.1) and FeTi_2 alloy as catalyst. The reaction kinetics and product distribution of Tropsch were studied. The distribution of products and the kinetics of flow kinetics were measured by infrared spectroscopy. The results showed that methane was the main product of this catalytic system. With the increase of CO content in the feed gas, The rate of the hydrogenation reaction of CO on the Group VIII element is further increased by the hydrogenation of the hydroxycarbenes (CHOH). The reaction process is as follows: