燃料化学学报2017，Vol.45Issue(6)：675-681,7.
MCM-41/MOR复合分子筛的制备及其烷烃异构化性能研究
Synthesis of MCM-41/MOR composite molecular sieves and its catalytic properties for isomerization of alkane
摘要
Abstract
The MCM-41/MOR composite molecular sieves with multiple micro-mesoporous structure were hydrothermally synthesized by using the alkali-treated MOR seriflux as partial silica-alumina source and cetyltrimethylammonium bromide(CTAB) as the template in self-assembly process.The synthesized samples of molecular sieves were characterized by XRD, HRTEM, BET and Py-FTIR, respectively.The results showed that the samples exhibit a hierarchical micro-mesoporous structure, large specific surface area and good hydrothermal stability as well.The isomerization performance of the composite zeolite catalyst was evaluated in a fixed bed microreactor.The results showed that the appropriate B and L acid coordinated with each other to act as the active center of alkane isomerization, while Ni species were not only active site for this reaction, but also played a good role in the modification of acidity.Compared with Ni-MOR, Ni-MCM-41 and HMCM-41/MOR, the Ni-MCM-41/MOR catalyst had better catalytic performance for isomerization reaction, the conversion of n-hexane is 34.40%, and the selectivity of i-C06 is 40.38%.关键词
MOR/MCM-41/复合分子筛/水热合成/异构化Key words
MOR/MCM-41/composite molecular sieve/hydrothermal synthesis/isomerization分类
化学化工引用本文复制引用
张君涛,宋菁,甄星,申志兵,梁生荣..MCM-41/MOR复合分子筛的制备及其烷烃异构化性能研究[J].燃料化学学报,2017,45(6):675-681,7.基金项目
The project was supported by the National Natural Science Foundation of China (21606177) and the Excellent Master Degree Thesis Cultiration of Xi'an Shiyou University (2015yp140709) （21606177）
国家自然科学基金(21606177)和西安石油大学优秀硕士学位论文培育项目(2015yp140709)资助 （21606177）
