HYDROGEN PREPARING METHOD USING COKE OVEN GAS BY COKE OVEN GAS PRE-TREATMENT, WATER-GAS CONVERSION, AND HYDROGEN SEPARATION

摘要

PURPOSE: A hydrogen preparing method using coke oven gas is provided to prepare plenty of hydrogen of high purity by amplifying hydrogen based on coke oven gas.;CONSTITUTION: A hydrogen preparing method includes the steps of: pre-treating coke oven gas; obtaining synthetic gas by the steam reforming reaction of the pre-treated coke oven gas; implementing the water-gas conversion of the synthetic gas; and separating hydrogen. In the pre-treatment process of the coke oven gas, hydrocarbons and hydrogen sulfide are removed by being absorbed on at least one absorber selected from a group including activated carbon and zeolite; and non-removed hydrogen sulfide is removed by being absorbed on zinc oxide.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) COG pre-treatment system; (BB) Methane vapor reformation; (CC) Water gas conversion (HTS); (DD) Water gas conversion (LTS); (EE) Hydrogen PSA; (FF) Hydrogen