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

Yu Wen Chen; Wei Jye Wang

doi:10.1016/S0166-9834(00)81420-7

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

Yu Wen Chen, Wei Jye Wang

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	45-53
Number of pages	9
Journal	Applied Catalysis
Volume	49
Issue number	1
DOIs	https://doi.org/10.1016/S0166-9834(00)81420-7
State	Published - 1989

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title = "Effects of the addition of zeolites on ruthenium catalysts in carbon monoxide hydrogenation",

abstract = "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.",

author = "Chen, {Yu Wen} and Wang, {Wei Jye}",

note = "Funding Information: This research was sponsored by the National Science Council of the Republic of China under grant number NSC77-0402-E008-02.",

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T1 - Effects of the addition of zeolites on ruthenium catalysts in carbon monoxide hydrogenation

AU - Chen, Yu Wen

AU - Wang, Wei Jye

N1 - Funding Information: This research was sponsored by the National Science Council of the Republic of China under grant number NSC77-0402-E008-02.

PY - 1989

Y1 - 1989

N2 - 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.

AB - 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.

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DO - 10.1016/S0166-9834(00)81420-7

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SN - 0166-9834

VL - 49

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JO - Applied Catalysis

JF - Applied Catalysis

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

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