摘要
以自合成的聚酰亚胺为原材料,采用干-湿相转化法制备了聚酰亚胺中空纤维膜并制备了中空纤维膜组件,用中空纤维膜气体分离评价装置系统评价分析了进气量、入口压力、入口CO_(2)体积分数、入口温度等参数对中空纤维膜组件CO_(2)分离性能的影响。结果表明:随着进气量从标准进气量的20%增加至200%,渗余气CO_(2)体积分数从0.15%增加至6.03%,渗透气CO_(2)体积分数从30.89%增加至72.02%;当入口压力从500 kPa升高至7000 kPa时,由于中空纤维膜渗透压差增加,其气体渗透能力增加,渗余气CO_(2)体积分数由20.88%降低至1.03%;入口CO_(2)体积分数由5%增加至90%,渗余气CO_(2)体积分数由0.19%增加至3.54%,渗透气CO_(2)体积分数由16.1%增加至93.1%;当入口温度从35℃升高至65℃时,渗余气CO_(2)体积分数从1.64%降低至0.30%,渗透气CO_(2)体积分数从55.13%降低至42.40%,渗透气流量从0.43 L·min^(-1)增加至0.60 L·min^(-1),符合阿伦尼乌斯公式。
Polyimide hollow fiber membrane and hollow fiber membrane components were prepared by dry-wet phase conversion method with self-synthesized polyimide as raw materials.The effects of inlet gas volume,inlet pressure,inlet CO_(2) volume fraction,inlet temperature and other parameters on the CO_(2) separation performance of hollow fiber membrane components were systematically evaluated and analyzed by using a hollow fiber membrane gas separation evaluation device.The results showed that the CO_(2) volume fraction of residual gas increased from 0.15%to 6.03%,and the CO_(2) volume fraction of permeated gas increased from 30.89%to 72.02%as the intake gas volume increased from 20%to 200%of the standard intake gas.As the inlet pressure increased from 500 kPa to 7000 kPa,the gas permeability of hollow fiber membrane increased,and CO_(2) volume fraction of residual gas decreased from 20.88%to 1.03%.Inlet CO_(2) volume fraction increased from 5%to 90%,CO_(2) volume fraction of residual gas increased from 0.19%to 3.54%,CO_(2) volume fraction of permeated gas increased from 16.1%to 93.1%.The inlet temperature increased from 35℃to 65℃,the CO_(2) volume fraction of residual gas decreased from 1.64%to 0.30%,the CO_(2) volume fraction of permeated gas decreased from 55.13%to 42.40%,and the permeated gas flow rate increased from 0.43 L·min^(-1) to 0.60 L·min^(-1),in accordance with Arrhenius formula.
作者
何明
段翠佳
袁标
沈鹏
陈赞
HE Ming;DUAN Cuijia;YUAN Biao;SHEN Peng;CHEN Zan(CNOOC Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China)
出处
《当代化工》
2025年第11期2617-2622,共6页
Contemporary Chemical Industry
基金
中国海洋石油集团有限公司“十四五”重大科研项目CCUS专项项目(项目编号:KJGG-2022-12-CCUS-030700)。
