化工学报2025，Vol.76Issue(5)：2262-2269,8.DOI:10.11949/0438-1157.20241172
ZIF-8/DMPU浆液分离C2H6/CH4混合气研究
Efficient ethane and methane separation using ZIF-8/DMPU slurry
摘要
Abstract
Ethane is an important raw material in petrochemical production and can be used to produce chemicals such as ethylene.Separating ethane from natural gas can achieve effective utilization of resources.In this study,the methane/ethane mixture was separated by a new absorption-adsorption hybrid separation method.The separation medium was created by suspending ZIF-8 particles into N,N-dimethylpropyleneurea(DMPU).The results indicate that the slurry have a significantly higher absorption capacity for ethane than methane.The sorption rate in ZIF-8/DMPU slurry was fast,especially ethane reached adsorption equilibrium in 3-5 minutes.When the temperature was 283.15 K and the initial gas-liquid ratio was about 52.46,the separation factor of C2H6/CH4 in ZIF-8/DMPU slurry could reach 9.26.In the column breakthrough tests,the slurry also showed excellent dynamic separation performance.In addition,the regeneration conditions of the slurry were mild and the structure of the recovered ZIF-8 material did not change.Continuous absorption-desorption cycle separation of C2H6/CH4 can be achieved.关键词
ZIF-8/乙烷/甲烷/吸收/吸附Key words
ZIF-8/ethane/methane/absorption/adsorption分类
能源科技引用本文复制引用
马瑞洁,黄子轩,关雪倩,陈光进,刘蓓..ZIF-8/DMPU浆液分离C2H6/CH4混合气研究[J].化工学报,2025,76(5):2262-2269,8.基金项目
国家自然科学基金项目(22127812,22178378) （22127812,22178378）
