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Acetylene Hydrogenation on Pd–Zn/Sibunit Catalyst: Effect of Solvent and Carbon Monoxide
Petroleum Chemistry ( IF 1.4 ) Pub Date : 2021-04-27 , DOI: 10.1134/s0965544121050169
D. V. Glyzdova , T. N. Afonasenko , V. L. Temerev , D. A. Shlyapin

Abstract

The effect of the presence of the N-methyl-2-pyrrolidone (NMP) solvent, on the properties of Pd–Zn/Sibunit catalyst in hydrogenation of a gas mixture enriched in acetylene and hydrogen was studied. It was found that owing to selective solubility of alkanes and alkynes in the NMP medium and to the action of bimetallic Pd–Zn active sites, transformations of the formed C2H4 are efficiently suppressed, so that the ethylene selectivity reaches 85% at the acetylene conversion higher than 90%.. The effect of these factors levels off the modifying effect of carbon monoxide on the ethylene selectivity. Under the conditions of the liquid-phase reaction, the Pd–Zn/Sibunit catalyst demonstrates stable performance with the ethylene yield of 77%.



中文翻译:

Pd-Zn / Sibunit催化剂上乙炔加氢:溶剂和一氧化碳的影响

摘要

研究了N-甲基-2-吡咯烷酮(NMP)溶剂的存在对Pd-Zn / Sibunit催化剂在富含乙炔和氢气的混合气体加氢中的性能的影响。结果发现,由于烷烃和炔烃在NMP介质中的选择性溶解性和双金属Pd-Zn活性位点的作用,所形成的C 2 H 4的转化得到了有效抑制,因此乙烯选择性在C处达到85%。乙炔转化率高于90%。这些因素的影响使一氧化碳对乙烯选择性的改性作用趋于平缓。在液相反应条件下,Pd-Zn / Sibunit催化剂表现出稳定的性能,乙烯收率为77%。

更新日期:2021-04-28
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