Efficient transesterification over two-dimensional zeolites for sustainable biodiesel production  

作　　者：Hao Pang Guoju Yang Lin Li Jihong Yu 

机构地区：[1]State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,2699 Qianjin Street,Changchun 130012,China [2]International Center of Future Science,Jilin University,2699 Qianjin Street,Changchun 130012,China [3]Electron Microscopy Center,Jilin University,2699 Qianjin Street,Changchun 130012,China

出　　处：《Green Energy & Environment》2020年第4期405-413,共9页绿色能源与环境（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.21835002,21621001 and 22001090);the 111 Project(B17020);Yang acknowledges the Jilin Province Science and Technology Development Plan(Grant 20200201096JC).

摘　　要：Basic zeolites have shown great potential as efficient catalysts for biodiesel production in the transesterification reactions.However,conventional three-dimensional(3D)basic zeolites generally suffer from limited base sites and severe mass-transfer restriction,thereby suppressing their catalytic activity.Herein,2D basic zeolites with large external surface areas,hierarchical characteristics,and abundant accessible and stable base sites are prepared by expansion,delamination and subsequent solid-state ion-exchange(SSIE)approach.The facile SSIE method provides more advantages in stabilizing and dispersing high concentration of strong basic sites than the conventional liquid-phase ion-exchange(LIE)approach.Due to the excellent mass transportation and stable basic sites,the 2D Na/ITQ-2 prepared by the SSIE approach shows remarkably enhanced activity and recyclability in the transesterification of triglycerides to produce biodiesel,compared to 3D zeolites and other reported basic zeolites.This work will open the boulevard to the rational design of 2D basic catalysts and expand the potential application of 2D zeolites to biodiesel production and other industrial reactions involving bulky molecules.

关 键 词：BIODIESEL Zeolites TWO-DIMENSIONAL TRANSESTERIFICATION Solid-state ion-exchange 

分 类 号：TK6[动力工程及工程热物理—生物能]