煤间接液化系统中用PSA法回收氢气的模拟  

Simulation of H_2-Recovery for PSA Process in Indirect Coal Liquefaction System

作　　者：张臻[1] 李涛[1] 应卫勇[1] 房鼎业[1] 孙启文 

机构地区：[1]华东理工大学大型工业反应器工程教育部工程研究中心,化学工程联合国家重点实验室,上海200237 [2]上海兖矿煤液化及煤化工国家重点实验室,上海201203

出　　处：《华东理工大学学报（自然科学版）》2009年第4期525-529,共5页Journal of East China University of Science and Technology

基　　金：国家高技术研究发展计划(863计划)(2006AA05A111)

摘　　要：从煤间接液化制清洁燃料系统尾气中回收的氢气可作为加氢工段的原料气。用变压吸附(PSA)法回收氢气实现了工业废气的再利用,有利于环境保护。作为大规模气体分离的常用方法,PSA法具有工艺流程简单、自动化程度高、成本低、操作简便等特点。通过建立多组分气体分离的数学模型,用有限差分法进行计算,对煤间接液化制清洁燃料尾气中氢回收的过程进行了模拟,计算程序通过10次循环后达到稳定状态。通过对模拟数据的分析比较,总结了吸附床出口产品气浓度的影响因素。The hydrogen recovered from tail gas of a clean fuel production system based on indirect coal liquefaction technology could be used as a source gas of hydrogenation. It is beneficial to environment protection and waste gas utilization. The advantages of pressure swing adsorption （PSA） include high efficiency, automatical operation, low capital investment and operating cost. In order to simulate the multicom-onent separation process in a clean fuel production system, an implicit backward finite difference method was used to solve the equations of PSA. After about 10 cycles, the steady-state was achieved. After analy- sis of simulated data, the factors influcing on product concentration were summerized.

关 键 词：氢气回收 变压吸附(PSA) 模拟 

分 类 号：TQ018[化学工程]