CO2 Hydrogenation to Alcohols over Highly Dispersed Co/SiO2 Catalysts Derived from Acetate

Highly dispersed Co(A)/SiO2 catalysts were prepared from acetate, and used for CO2 hydrogenation to alcohols under the reaction conditions of T = 493 K, P = 2.1MPa, H2/CO2 = 3/1, and GHSV = 2000 h−1. Catalytic activity was greatly improved by adding a small amount of Ir to the catalyst, and methanol...

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Bibliographic Details
Published in:Chemistry letters 2001, Vol.30 (9), p.904-905
Main Authors: Okabe, Kiyomi, Yamada, Hidekazu, Hanaoka, Takaaki, Matsuzaki, Takehiko, Arakawa, Hironori, Abe, Yoshimoto
Format: Article
Language:English
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Summary:Highly dispersed Co(A)/SiO2 catalysts were prepared from acetate, and used for CO2 hydrogenation to alcohols under the reaction conditions of T = 493 K, P = 2.1MPa, H2/CO2 = 3/1, and GHSV = 2000 h−1. Catalytic activity was greatly improved by adding a small amount of Ir to the catalyst, and methanol (ca. 20%) was formed, in contrast with Co(N)/SiO2 catalyst derived from nitrate. Ethanol selectivity was increased up to 8% by adding Na salt to the Ir/Co(A)/SiO2 catalyst.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2001.904