变压吸附提氢装置中吸附塔结构对氢气回收率的影响  

Influence of adsorption tower structure on hydrogen recovery rate in PSA hydrogen extraction unit

作　　者：张崇海 陈健 李克兵 杨中贵 胡旭 张勇 ZHANG Chong-hai;CHEN Jian;LI Ke-bing;YANG Zhong-gui;HU Xu;ZHANG Yong(Southwest Institute of Chemical Co.,Ltd.,Chengdu 610225,Sichuan,China)

机构地区：[1]西南化工研究设计院有限公司,四川成都610225

出　　处：《天然气化工—C1化学与化工》2021年第S01期88-92,共5页Natural Gas Chemical Industry

基　　金：四川省科技计划项目(2021YFG0106)。

摘　　要：在利用变压吸附(PSA)法提纯氢气的装置中,吸附塔封头常采用椭圆封头和球形封头两种,上下封头的内件根据专利技术不同,采用的结构形式也有所不同。通过计算,采用球形封头带上分布器的结构,氢气回收率损失0.51%,在各种结构中损失量最小。随着装置规模的扩大,吸附塔结构对氢气回收率的影响随之变大,需要优化工艺来降低此影响。Elliptical and spherical head of adsorption towers are often used in device for purifying hydrogen by pressure swing adsorption(PSA)technology.The inner parts of the upper and bottom heads adopt different structural forms according to different patented technologies.By calculation,the loss of hydrogen recovery rate is 0.51%when the spherical head with a distributor is adopted,and the loss is the smallest among various structures.With the expansion of the unit scale,the influence of the adsorption tower structure on the hydrogen recovery rate becomes greater,and the process needs to be optimized to reduce this influence.

关 键 词：变压吸附 吸附塔 封头 内件结构 回收率 

分 类 号：TQ116.2[化学工程—无机化工]