How to treat by-product gas

Abstract

Abstract PURPOSE:To obtain a high-calorie gas at low cost, by passing a by-product gas through gas permeable membranes at plural stages having CO/CO2 preferentially separating properties to separate and remove a CO2 component and moving the resultant gas through a gas absorbing column to give concentrated CO. CONSTITUTION:A by-product gas from which dust is removed by a filter 1 is passed through gas permeable membranes (e.g., dimethyl silicon membrane, fluorine-containing olefin siloxane copolymer membrane, polycarbonate/ polysiloxane membrane, etc.,) 2a and 2b at plural stages, having preferentially separating properties to separate and remove its CO2 component. Then, the resultant gas is moved through a gas absorbing column 3 to give concentrated CO.

Inventors

• 👤 Shiro Fujii
• 👤 史朗 藤井

Bibliographic Details