Synthesis, characterization, and catalytic application of mesoporous SAPO-34 molecular sieves
محل انتشار: اولین کنفرانس بین المللی فناوری های نوین در علوم
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 521
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شناسه ملی سند علمی:
CMTS01_142
تاریخ نمایه سازی: 17 آبان 1396
چکیده مقاله:
In order to enhance the catalytic performance of SAPO-34 for the reaction of methanol to olefins (MTO), various mesogenous templates, such as TPOAC, CTAB, and their combinations were used to synthesize nanosized SAPO-34. The effects of the composition of the mixed template on the chemical composition and morphology of SAPO-34 were characterized by XRD, FESEM and BET techniques. The catalytic performance of prepared SAPO-34 was investigated in a fixed-bed reactor under atmospheric pressure, 450 °C and WHSV of 4 h–1. Comprehending the results, it can be said that in comparison with the typical catalysts, reliable MTO catalytic lifetime (420 min) as well as sufficiently high light olefins selectivity (90 %) was obtained through the nanosized hierarchical porous SAPO-34 templated with a mixture of 50% CTAB and 50% TPOAC.
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نویسندگان
Seyed Hassan Sharifi
Wood and Paper Science Department, Faculity of Natural Resources, Sari Agricultural Sciences and Natural Resource University, P.O. Box ۷۳۷, sari, Iran
Majid Taghizadeh
Chemical Engineering Department, Babol University of Technology, P.O. Box ۴۸۴, Babol, Iran