焦炉气制 LNG 联产氢气技术及经济性分析

摘要

Current status of multipurpose use of coke-oven gas and local government’s working method on the development of circular economy and energy conservation and emission reduction are introduced. The newly local project of coke-oven gas based LNG is used as an example to probe into the optimal utilization path of coke-oven gas. Meanwhile, the effect of the process order of cryogenic treatment and hydrogen extraction on the economy are an-alyzed. And the result indicated that the cryogenic treatment first then hydrogen extraction can decrease total investment and increase return on capital.%介绍了目前焦化生产企业焦炉煤气综合利用的现状，以及政府在发展焦化行业的同时开展循环经济、节能减排的工作思路。以当地新建的焦炉煤气制取液化天然气项目为例，探讨了焦炉气综合利用的最佳途径，并对深冷和提氢先后的不同工艺方案进行了技术经济比较，结果表明：先深冷再提氢方案总投资相对较低，收益率相对较高。