第423回触媒科学研究所コロキウム

Development of P containing zeolite catalysts for
production of aromatics from biomass
Dr. Wei Fan(Associate Professor, University of Massachusetts Amherst)

2019年5月23日（木）15：00—16：30
創成科学研究棟4階セミナー室BC）

http://www.cat.hokudai.ac.jp/access.html
The need for sustainable production of everyday materials in addition to market volatility of petroleum-based feedstocks
has motivated research into the production of renewable aromatic chemicals from biomass. Specific chemicals of interest
include p-xylene, the feedstock for polyethylene terephthalate (PET). We have proposed a renewable method of producing
renewable p-xylene by cycloaddition of biomass-derived dimethylfuran (DMF) and ethylene, which serves as the last stepin a complete process for producing p-xylene from cellulose.The reaction occurs by symmetry-allowed [4 + 2] Diels-Alder
cycloaddition of ethylene and DMF and subsequent aromatization by acid-catalyzed dehydration to p-xylene. Our studies
suggested that H-BEA with Brønsted acidity and Zr-BEA with Lewis acidity exhibit a high p-xylene yield of 75% from thereaction pathway. However, the zeolite catalysts also catalyzed the formation of alkylated and oligomerized byproducts. In
this talk, I will discuss catalytic reaction kinetics and mechanism for p-xylene formation from DMF and ethylene overdifferent catalytic active sites. Inspired by these fundamental studies, we recently developed a new type of zeolite catalyst,
that is, phosphorous-containing siliceous zeolites. The catalysts can selectively catalyze the dehydration reaction from thefuran-ethylene cycloadduct to p-xylene, without catalyzing reactions producing alkylated and oligomerized products. In
particular, the phosphorous-containing zeolite Beta (P-BEA) and hierarchical self-pillared pentasil, P-SPP, are active, stable
and selective catalysts for this reaction with an unprecedented p-xylene yield of 97%. This catalytic behavior is distinct
from that of Al-containing zeolites and establishes a commercially attractive process for renewable p-xylene production.
Wei Fan is an associate professor at Chemical Engineering Department of University of Massachusetts Amherst. Dr. Fan’s
research group focuses on the rational synthesis of nanoporous materials by engineering their pore structure and size,
surface properties and active sites based on the comprehensive understanding of their crystallization mechanism. Dr. Fanreceived his PhD from the University of Tokyo, Japan, under supervision of Prof. Okubo Tatsuya, and worked with Prof.
Michael Tsapatsis in the University of Minnesota from 2007 to 2010 as a post-doc researcher. He started his researchgroup at University of Massachusetts Amherst on 2010. He has published more than 90 peer-reviewed papers on
international journals including Nature Materials, Journal of the American Chemical Society, Angewandte ChemieInternational Edition etc. He has received 2016 Barbara H. and Joseph I. Goldstein Outstanding Junior Faculty Award fromUMass Amherst and 2016 Outstanding College of Engineering Teaching Award from UMass Amherst. He is one of the 3M
Non-Tenured Faculty Awardees in 2014.

問合せ先： 触媒科学研究所・福岡 淳（fukuoka@cat.hokudai.ac.jp・011-706-9140）

423rd Institute for Catalysis (ICAT) Colloquium