焦炉气制甲烷的新型催化剂及其应用工艺

New Catalyst of Methanation for COG and its Application Technology

介绍了一种用于焦炉气回收制甲烷的新型催化剂,模拟工业条件的测试实验数据显示,该新型催化剂具有高活性、良好的耐热性和抗结炭性,适用于焦炉气或煤制气制合成甲烷的工艺。根据该催化剂性能提出2种新型工艺流程:一是以焦炉气为原料,设置两段绝热催化反应加变压吸附系统的工艺,以制取天然气和纯氢产品;二是在焦炉气中添加煤气或富含碳氧化物的工业尾气,设置三段催化反应工艺制取天然气。

A new catalyst for methanation of Coke-Oven gas had been developed,the test data from simulating the industrial conditions showed that： this catalyst could perform well with high activity,fine resistance againsted high temperature and coking,so it was proper to the methanation procedure of COG or coal gas.Two new technical ways were described according to the application of this catalyst：（1）Two steps of heat-insulating methation reaction and PSA separation system were applied to produce natural gas and pure hydrogen from COG;（2） The COG with coal gas or rich CO/CO2 gas as adding resource passed throuth three steps of heat-insulating methation reaction,and then to the product of synthesis natural gas.