A series of small‐pore zeolites are synthesized and investigated as catalysts for the methanol‐to‐olefins (MTO) reaction. Small‐pore zeolites SSZ‐13, SSZ‐16, SSZ‐27, SSZ‐28, SSZ‐52, SSZ‐98, SSZ‐99, SSZ‐104, SSZ‐105 and an ITQ...
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https://www.riss.kr/link?id=O120734632
2018년
-
1439-4235
1439-7641
SCI;SCIE;SCOPUS
학술저널
412-419 [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
A series of small‐pore zeolites are synthesized and investigated as catalysts for the methanol‐to‐olefins (MTO) reaction. Small‐pore zeolites SSZ‐13, SSZ‐16, SSZ‐27, SSZ‐28, SSZ‐52, SSZ‐98, SSZ‐99, SSZ‐104, SSZ‐105 and an ITQ...
A series of small‐pore zeolites are synthesized and investigated as catalysts for the methanol‐to‐olefins (MTO) reaction. Small‐pore zeolites SSZ‐13, SSZ‐16, SSZ‐27, SSZ‐28, SSZ‐52, SSZ‐98, SSZ‐99, SSZ‐104, SSZ‐105 and an ITQ‐3‐type material are synthesized, and the results from their use as catalytic materials in the MTO reaction compared to those obtained from SAPO‐34. The production of propane that tends to correlate with catalytic material lifetime (higher initial propane yields lead to shorter lifetimes) declines with increasing Si/Al (as has been observed previously for SSZ‐13), and a larger cage dimension leads to higher propane yields at a fixed Si/Al. Data from these materials and others reported previously, for example, SSZ‐39 and Rho, that were tested at the same reaction conditions, revealed four different patterns of light olefin selectivities: 1) ethylene greater than propylene with low butene, for example, SSZ‐17, SSZ‐98, SSZ‐105, 2) ethylene equal to propylene and low butene, for example, SAPO‐34, SSZ‐13, SSZ‐16, SSZ‐27, SSZ‐52, SSZ‐99, SSZ‐104, 3) propylene greater than ethylene with butene similar to ethylene, for example, SSZ‐28, SSZ‐39, and 4) ethylene equal to propylene equal to butene, for example, Rho. No clear relationships between zeolite cage architecture and light olefin selectivity emerged from this investigation, although several trends are presented as suggestions for further study.
The structure–performance relationships in the methanol‐to‐olefin (MTO) reaction between the cage structures of small‐pore molecular sieves and their resultant product distributions are investigated. Small‐pore zeotypes of seven different topologies (CHA, ERI, AFX, SFW, DDR, ITE, and a new framework SSZ‐27) are tested, and taken together with previously reported results, reveal four distinct trends in light olefin selectivity ratios. Additionally, the propane selectivity is found to depend not only on the Si/Al ratios but also on the dimensions of cages.
A Kinetic Study of Methane Partial Oxidation over Fe‐ZSM‐5 Using N2O as an Oxidant