Process for the preparation of carbon monoxide rich gas

Details Process for the preparation of carbon monoxide rich gas Process for the preparation of carbon monoxide rich gas

C - Chemistry, Metallurgy

01

B

C01B 31/18 (2006.01)

Patent

CA 2111017

A process is provided for the preparation of carbon monoxide-rich product gas. The process includes reacting a gas feed of hydrogen and carbon dioxide which has been preheated to a temperature between 400°C and 650°C in a molar H2/CO2 ratio of between 1.5 and 6.5 in the presence of a reforming catalyst at a pressure between 5 and 50 bar to carbon monoxide-rich gas. The process additionally comprises reacting part of the carbon dioxide and hydrogen in the gas feed exothermically to methane simultaneously with the carbon monoxide-producing reaction, and carrying out both reactions under adiabatic conditions. In this way, the exothermic methane- producing reaction provides heat which is necessary for the endothermic carbon monoxide- producing reaction. The outlet temperature of the carbon dioxide-rich product gas is higher than the temperature to which gas feed is preheated.

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