JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
Catalysis, Kinetics and Reactor Design
Hydroformylation of 1-Hexene over Co/SiO2 Catalysts: Influence of Pore Size of Support
XIANQING QIUNORITATSU TSUBAKIKAORU FUJIMOTO
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2001 Volume 34 Issue 11 Pages 1366-1372

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Abstract
Silica-supported cobalt catalyst was studied for hydroformylation of 1-hexene. The influence of pore size of the silica support was investigated. It was found that cobalt catalyst supported on silica with appropriate pore size, about 6-10 nm, was active for the reaction with very high selectivity to oxygenates. The smaller the pore size and the higher the surface area of the silica support, the higher metal dispersion and the smaller the cobalt particle size. But, in turn, the reducibility of the supported cobalt was lower. The cobalt catalyst supported on silica with small pore size seemed to be more stable during the reaction due to the interaction between cobalt particles and the support. Although there might be homogeneous reaction on the dissolved cobalt species, the activity was mainly from the heterogeneous hydroformylation of 1-hexene.
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© 2001 The Society of Chemical Engineers, Japan
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