화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.5, 2848-2857, September, 2014
DOI10.1016/j.jiec.2013.11.017  Export Citation
Study of alkylation on a Lewis and Brønsted acid hybrid catalyst and its industrial test
Naiwang Liu, Xin Pu, Xin Wang, and Li Shi†
  • The State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
E-mail:
A novel catalyst ZnBr2 modified bentonite is prepared. Pyridine adsorbed FTIR spectra demonstrated the amount of Brønsted and Lewis acid was improved to 2 and 5 times, respectively. Thermal analysis indicated the thermal stability of ZnBr2-bentonite could reach 350 ℃. Mechanism research led to an interesting hypothesis that in the former stage, the active position is Brønsted acid sites and in the later stage, both Lewis acid and Brønsted acid sites act as active positions. Industrial test showed the ability of ZnBr2-bentonite to remove olefins is 17 times higher than that of bentonite, and the industrial application prospect is good.
Keywords:Acid modification;Bentonite;Solid acid catalyst;Alkylation mechanism
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