Effects of the addition of zeolites on ruthenium catalysts in carbon monoxide hydrogenation

Yu Wen Chen, Wei Jye Wang

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

The synthesis of hydrocarbons from synthesis gas was studied over a series of zeolites (HX, HY and CuX) mixed with Ru/TiO2 catalysts at 1 atm, 473-573 K, H2:CO=1 and GHSV = 1800 h-1. A Ru/TiO2SiO2 catalyst was used for comparision. It was found that the acidity of the zeolites could modify the catalytic properties by (1) increasing CO conversion, (2) increasing C4 hydrocarbon formation, (3) increasing the selectivites for olefins and (4) increasing isobutene formation. The results can be interpreted with a bifunctional mechanism of the catalysts. In the addition, the rate-determining step is shifted from the reactions taking place over the Fischer-Tropsch catalysts to diffusion of C4 hydrocarbons into the zeolites.

原文???core.languages.en_GB???
頁(從 - 到)45-53
頁數9
期刊Applied Catalysis
49
發行號1
DOIs
出版狀態已出版 - 1989

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