METHOD FOR SEPARATING AND RECOVERING HIGH-CONCENTRATION HYDROGEN GAS FROM COKE OVEN GAS

PROBLEM TO BE SOLVED: To provide a method for separating and recovering high-concentration hydrogen gas by a simple means from coke oven gas(COG) generated from a coke oven without any special gas separation/production/treatment equipment and any expensive catalyst for conventional separatory and reforming steps or the like. SOLUTION: The method for recovering high-concentration hydrogen gas from coke oven gas generated in the process of producing coke by dry distillation of coal blend in a coke oven comprises continuously measuring at least the hydrogen concentration of the coke oven gas and, at a point when the measurement of the hydrogen concentration comes to 60% or higher or 90% or higher, recovering the coke oven gas. COPYRIGHT: (C)2006,JPO&NCIPI