原位功能化离子液体负载多孔材料的H2S捕集能力  

In-situ Bifunctional Ionic Liquid-Immobilized Porous Material for H2S Capture

作　　者：马云倩[1,2] 欧育新 毛家明[1] 慈玉辉 臧立华 无[3] MA Yun-qian;OU Yu-xin;MAO Jia-ming;CI Yu-hui;ZANG Li-hua(School of Environmental Science and Engineering, Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Shandong University Library,Jinan 250353,China;Jiangsu Key Laboratory of Anaerobic Biotechnology(Jiangnan University),Wuxi 214122,China)

机构地区：[1]齐鲁工业大学(山东省科学院)环境科学与工程学院,济南250353 [2]山东大学图书馆,济南250100 [3]江苏省厌氧生物技术重点实验室(江南大学),无锡214122

出　　处：《齐鲁工业大学学报》2019年第5期19-26,共8页Journal of Qilu University of Technology

摘　　要：通过调控Et3NHCl和CuCl2的不同摩尔比例,合成并筛选出低能耗且半固化程度低的功能化离子液体Et3NHCl·CuCl2,为简化吸附剂制备过程的同时提高离子液体负载的均匀程度,采用离子液体的合成与负载同步完成的原位负载技术,将离子液体负载到不同空隙结构的多孔材料(活性炭、硅胶、树脂和氧化铝)上,研究比较了传统负载技术与原位负载技术对吸附剂脱硫性能的影响,初步筛选出最佳载体材料为硅胶。采用红外光谱、扫描电子显微镜、氮气吸脱附对吸附剂进行了性质表征。对原位Et3NHCl·CuCl2负载硅胶吸附剂中离子液体的最佳负载量为10wt%,氮气吸脱附曲线表明30wt%的离子液体超过了硅胶最大承载量,Bangham模型和实验吸附数据拟合最佳,吸附动力学受材料内孔扩散的限制。By regulating the different molar ratios of Et3NHCl and CuCl2,a task-specific ionic liquid Et3NHCl·CuCl2 with low energy consumption and low degree of semi-curing was synthesized and selected.Ionic liquids were loaded onto porous materials( activated carbon,silica gel,resin and alumina) by in-situ loading technology of synthesis of ionic liquid and synchronous loading,which can simplify the preparation process of adsorbent and realize uniform dispersing of ionic liquid.The effects of traditional loading technology and in situ loading technology on desulfurization performance of adsorbents were studied and compared,and the best carrier material is silica gel through preliminary screening.The properties of the adsorbent were characterized by FT-IR,SEM,and N2 adsorption-desorption.The best ionic liquid loading amount is 10wt%,and nitrogen adsorption and desorption curves indicated that 30 wt% of ionic liquid exceeded the maximum capacity of silica gel.The best fitting of the Bangham model and the experimental adsorption data indicated that the adsorption kinetics is limited by the diffusion of the inner pores of the material.

关 键 词：功能化离子液体 多孔材料 原位负载 H2S 吸附 

分 类 号：O647[理学—物理化学] O643[理学—化学]