Return to Japanese Patent Table of Contents

JP6263665
Catalytic Hydrogenation Of Carbon Dioxide Gas
Patent Number: JP6263665
Publication date: 1994-09-20
Inventor(s): Sasaki Yoshiyuki, Saito Masahiro, Tominaga Kenichi, Watanabe Daiki, Kawai Motomasu, Takeuchi Masami, Kanai Yuuki, Moriya Keiko, Kakumoto Terumitsu
Applicant(s): Agency Of Ind Science & Technol, Chikyu Kankyo Sangyo Gijutsu Kenkyu Kiko
Requested Patent: JP6263665
Application Number: JP19930052272 19930312
Priority Number(s):
IPC Classification: C07C31/04; B01J31/22; C01B31/18; C07C1/12; C07C9/04; C07C29/157
EC Classification:
Equivalents: JP3146216B2

Abstract

PURPOSE: To produce methanol, methane, carbon monoxide, etc., by hydrogenating carbon dioxide gas in the presence of a homogeneous liquid-phase reaction catalyst.

CONSTITUTION: Methanol, methane, carbon monoxide, etc., are produced by hydrogenating carbon dioxide gas in the presence of a homogeneous liquid-phase reaction catalyst consisting of a combination of a ruthenium carbonyl complex with an iodine compound. Methanol, methane or carbon monoxide useful as a fuel or a chemical synthesis raw material can be produced from carbon dioxide gas exhausted in large quantity from a thermoelectric power plant, cement factory, etc. Since the catalyst is soluble in solvent in contrast with conventional heterogeneous catalyst, it can be used in a liquid-phase reaction system at an easily controllable temperature.