ZIF-8体系富集回收炼厂干气中C2H6+C2H4

Recycling C2H6+C2H4 from the Refinery Dry Gas by ZIF⁃8

张晓欣 华亚辉 董浩杰 李鹏辉 鞠佳 封瑞江 张路南

Zhang Xiaoxin1 HuaYahui Dong Haojie Li Penghui Ju Jia Feng Ruijiang Zhang Lunan

1. 辽宁石油化工大学 石油化工学院, 辽宁 抚顺113001； 2. 国家管网集团北方管道有限责任公司, 河北 廊坊 006500

1. School of Petrochemical Engineering， Liaoning Petrochemical University， Fushun Liaoning 113001，China； 2. PipeChina North Pipeline Company， Langfang Hebei 006500，China

Abstract: The refinery industry is an energy⁃intensive industry. So the efficient recycle and utilization of light hydrocarbon gases will solve the difficulties of energy conservation and environmental protection.The adsorption and the adsorption⁃hydration method were applied to separate C2 from the simulated refinery dry mixture gas of M1(C2H6(11.55%)+C2H4(12.46%)+CH4(29.15%)+N2(27.02%)+H2(19.82%)).The collected mixture gas M2 was secondary separated by ZIF⁃8. The result showed that molar fraction of C2 was decreased to 9.90% after primary separation process using adsorption⁃hydration method.Because of the higher concentration of C2,the values of y_(C_2 ) and MC of product using the adsorption⁃hydration method were better than the adsorption method under the same initial pressure. Because the molar fraction of C2 in M2 was low, the hydrate was difficult to be formed in the system of M2, and the adsorption method with dry ZIF⁃8 was proved to be adaptive to separate the gas mixture of M2 to avoid the negative effects of water in the system of wet ZIF⁃8. Through the two⁃step separation process, the molar fraction of C2 in M1 was decreased from 24.01% to 2.90%.

辽宁省“兴辽英才计划”项目（No.31007601）；辽宁石油化工大学引进人才科研启动基金（No.2016XJJ-015）。

10.3969/j.issn.1006-396X.2021.02.006