Renewable p-Xylene from 2,5-Dimethylfuran and Ethylene Using Phosphorus-Containing Zeolite Catalysts

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• 作者：Hong Je Cho ; Dr. Limin Ren ; Vivek Vattipalli ; Yu-Hao Yeh ; Nicholas Gould ; Prof. Bingjun Xu ; Prof. Raymond J. Gorte ; Prof. Raul Lobo ; Prof. Paul J. Dauenhauer ; Prof. Michael Tsapatsis and Prof. Wei Fan
• 刊名：ChemCatChem
• 出版年：2017
• 出版时间：February 6, 2017
• 年：2017
• 卷：9
• 期：3
• 页码：398-402
• 全文大小：1166K
• ISSN：1867-3899

文摘

p-Xylene is a major commodity chemical used for the production of polyethylene terephthalate, a polymer with applications in polyester fibers, films, and bottles. The Diels–Alder cycloaddition of 2,5-dimethylfuran and ethylene and the subsequent dehydration of the cycloadduct intermediate is an attractive reaction pathway to produce renewable p-xylene from biomass feedstocks. However, the highest yields reported previously do not exceed 75 %. We report that P-containing zeolite Beta is an active, stable, and selective catalyst for this reaction with an unprecedented p-xylene yield of 97 %. It can catalyze the dehydration reaction selectively from the furan-ethylene cycloadduct to p-xylene without the production of alkylated and oligomerized products. This behavior is distinct from that of Al-containing zeolites and other solid phosphoric acid catalysts and establishes a commercially attractive process for renewable p-xylene production.