Selective hydrogenation of acetylene in an ethylene rich flow: Results of kinetic simulations

被引:44
作者
Gislason, J [1 ]
Xia, WS [1 ]
Sellers, H [1 ]
机构
[1] S Dakota State Univ, Dept Chem & Biochem, Brookings, SD 57007 USA
关键词
D O I
10.1021/jp011238s
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
We have performed kinetic simulations of the behavior of acetylene hydrogenation under ethylene rich conditions at a number of temperatures and feed gas compositions employing Pd and Pd/Ag alloy catalysts. The results of these simulations form a clear and consistent picture as to the origins of selectivity, thermal runaway, oligomer formation, the role of CO as a promoter of selectivity and inhibitor of oligomer formation, and the importance of proton transfer among carbonaceous species, The modeling gives insight into mechanistic details and provides an explanation for the influence of alloying catalyst on these phenomena.
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收藏
页码:767 / 774
页数:8
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