不同氢气净化提纯技术在煤制氢中的经济性分析

Economic Analysis of Different Hydrogen PurificationTechnologies in Coal Hydrogen Production

煤制氢是我国主要的工业氢气来源,本文以典型煤制氢低温甲醇洗气源为例,将甲烷化、变压吸附和膜分离等净化提纯氢气技术进行了分离效果比较,在此基础上,对上述技术及技术组合工艺进行了详细地净化提纯氢气经济性比较,发现甲烷化工艺经济性最差;变压吸附工艺及变压吸附膜分离耦合工艺经济性较好,并对二者适用情况进行了说明。

Hydrogen production from coal is the main source of industrial hydrogen in China,Taking a typical low-temperature methanol washing gas source as an example,this paper compares the separation effects of purification hydrogen technologies such as methanation,psa and gas membrane separation.On this basis,detailed economic comparison of these technologies and technology combination process,and it is found that methanation is the worst.The psa process and psa membrane separation coupling process are economical and their applications are described.