科研之友
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摘要
Four Zn/ZSM-5 catalyst samples were prepared by mechanical pressing, introducing binder of aluminum oxide, introducing binder of silicon oxide, and binderless molding, respectively. The samples were characterized by N-2 physical adsorption, scanning electron microscopy, NH3 temperature-programmed desorption, pyridine Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy and were evaluated by aromatization of mixed C-4 hydrocarbons. The results indicated that, compared with the mechanical pressed catalyst and the shaped catalyst samples with binders, the binderless Zn/ZSM-5 sample possessed higher specific surface area, accommodated more Zn species inside the zeolite crystals, and showed better catalytic performance in the aromatization of mixed C-4 hydrocarbons.
- 出版日期2011-6
- 单位中国石油化工股份有限公司上海石油化工研究院
