晶种S-1对制备级孔ZSM-5及在甲醇制汽油反应中的影响  

Hierarchical ZSM-5 Nano-Aggregates:the Effect of Seed on the Properties and the Application in Methanol to Gasoline

作　　者：孟凡军 王亚权 MENG Fan-jun;WANG Ya-quan(School of Chemical Engineering&Technology,Tianjin University,Tianjin 300072,China;Energy Research Institute,Qilu University of Technology(Shandong Academy of Sciences),Ji’nan 250014,China)

机构地区：[1]天津大学化工学院,天津300072 [2]齐鲁工业大学(山东省科学院)能源研究所,山东济南250014

出　　处：《聊城大学学报（自然科学版）》2020年第1期23-28,共6页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目（21276183）;山东省科学院青年基金项目（2019QN0020）资助

摘　　要：通过加入十六烷基三甲基溴化铵(CTAB),晶种法制备出ZSM-5聚集体,研究改变合成过程中晶种使用量对ZSM-5分子筛物理化学性质及催化甲醇制汽油反应的影响,发现随着晶种使用量的增加,ZSM-5聚集体的结晶度、比表面积、介孔孔体积等先增大后减小,单个晶体尺寸逐渐减小,聚集体直径增加.在甲醇制汽油反应中,具有较高结晶度、较大比表面积及介孔孔体积的催化剂具有最优稳定性及催化寿命.ZSM-5 aggregates were synthesized with hexadecyltrimethylammonium bromide(CTAB)in seed-induced method.The effect of different amounts of seed addition on the physicochemical properties of ZSM-5 and the catalytic performance in the reaction of methanol to gasoline(MTG)was studied.It was found that with the increase of seed addition,the crystallinities,surface area and mesopore volumes increased and then decreased,the crystal sizes decreased and the aggregate sizes increased.In the reaction of MTG,the catalyst with high crystallinity,large surface area and mesopore volumes had the best stability and the longest catalytic life time.

关 键 词：ZSM-5 甲醇制汽油(MTG) 十六烷基三甲基溴化铵(CTAB) 晶种法 

分 类 号：Q614[生物学—生物物理学]