Efficient synthesis of bioetheric fuel additive by combining the reductive and direct etherification of furfural in one-pot over Pd nanoparticles deposited on zeolites  

作　　者：Xiaowen Guo Haihong Wu Peng Wu Mingyuan He Yejun Guan 

机构地区：[1]Shanghai Key Laboratory of Green Chemistry and Chemical Processes,East China Normal University,North Zhongshan Road,Shanghai,3663,China [2]Institute of Eco-Chongming,East China Normal University,Cuiniao Rd.20,Shanghai,China

出　　处：《Green Energy & Environment》2023年第2期519-529,共11页绿色能源与环境（英文版）

基　　金：financial support from the National Natural Science Foundation of China(21773067);the Open Research fund of Shanghai Key Laboratory of Green Chemistry and Chemical Processes。

摘　　要：Furfuryl ethers have been considered to be a promising fuel additive.One step reduction etherification of furfural over supported Pd catalysts provides a facile way for the preparation of furfuryl ether.However,the preparation of a reusable Pd catalyst for reductive etherification remains to be a great challenge.In this study,a series of Si O_(2)supported Pd catalysts with particle size ranging from 2.2 nm to 28 nm were prepared.Their textural properties and catalytic performance in furfural reductive etherification have been systematically studied.The results herein shed light on the particle size effect on the competition between hydrogenation/hydrogenolysis of C=O in furfural over Pd surface.We found out that Pd nanoparticles larger than 3 nm are preferred for one step reductive etherification.Based on this finding,we prepared a Pd/ZSM-5 bifunctional catalyst comprising Pd nanoparticles larger than 3 nm and decreased acidity in presence of amino organosilane,which served as a bifunctional catalyst succeeding in one-pot synthesis of ether via reductive-etherification and direct-etherification.This strategy showed significant advantage in efficiently converting furfuryl acohol,a major side-product,into ether,while suppressing the undesired side-reactions.

关 键 词：ETHERIFICATION FURFURAL Palladium Zeolite Amino organosilane 

分 类 号：TE667[石油与天然气工程—油气加工工程]