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AssigneeAgency of Industrial Science and Technology
InventorsSatoshi Arimitsu, Katsumi Yanagi, Hitomi Hosono, Toshihiro Saito, Kazuaki Tanaka, Yuji Onda, Kazuo Takada, Keiji Mitarai, Nobuyuki Taniguchi, Yoshimitsu Ishii, Takakazu Fukushima
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Ethanol is prepared with high selectivity by the catalytic reaction of carbon monoxide and hydrogen. The catalyst composition comprises: (A) catalyst component consisting of (a) a rhodium component, (b) a lithium component, and (c) a component of at least one element selected from the group consisting of iridium, manganese, scandium, mangesium, yttrium, ytterbium, lutecium, vanadium and chromium; and (B) catalyst component, which is supported on a separate carrier from said (A) catalyst component, being selected from the group consisting of (a) an iron component and a component of at least one element selected from the group consisting of iridium and palladium, (b) a molybdenum component and a component of at least one element selected from the group consisting of iridium and palladium, (c) an iron component, a molybdenum component and a component of at least one element selected from the group consisting of iridium and palladium, and (d) a copper component and optionally a component of at least one element selected from the group consisting of zinc and chromium.
In a process for the manufacture of ethanol by contacting a gas comprising carbon monoxide and hydrogen with a catalyst composition, the improvement wherein said catalyst composition consists essentially of the following two groups of catalyst components,
Dependencies are inferred from the claim text.