Fabrication of a sinter-resistant Fe-MFI zeolite dragonfruit-like catalyst for syngas to aromatics conversion  

作　　者：Chenguang Wang Chengyan Wen Zheng Liang Zhipeng Tian Qian Jiang Yuhe Liao Xunzhu Jiang Lungang Chen Qiying Liu Longlong Ma Michiel Dusselier 

机构地区：[1]Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China [2]Southeast University,School of Energy and Environment,Nanjing 210009,Jiangsu,China [3]Center for Sustainable Catalysis and Engineering(CSCE),KU Leuven,Celestijnenlaan 200F,3001 Heverlee,Belgium [4]CAS Key Laboratory of Renewable Energy,Guangzhou 510640,Guangdong,China [5]Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,Guangdong,China [6]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Energy Chemistry》2023年第2期70-79,I0003,共11页能源化学（英文版）

基　　金：supported financially by the National Natural Science Foundation of China(51776206);the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(2017BT01N092);the National Key R&D Program of China(2018YFB1501504);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX20_0095);the Fundamental Research Funds for the Central Universities(3203002104D);the Research Foundation-Flanders(FWO,grant 12E8617N)for funding and KU Leuven grant C14/20/086;visiting scholar(2017-20202)at the Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences。

摘　　要：Direct conversion of syngas to aromatics has great potential to decrease fossil fuel dependence.Here,a unique structured hybrid catalyst composed of Fe_(3)O_(4) nanoparticles intimately dispersed inside an acidic zeolite is developed.1 to 4 nm sized Fe_(3)O_(4) nanoparticles end up evenly dispersed in an acidic and slightly mesoporous Al-ZSM-5 based on Fe_(3)O_(4) restructuring during co-hydro thermal synthesis using organosilane modification.A very high aromatic productivity of 214 mmolaromatics h^(-1) gFe^(-1) can be obtained with a remarkable 62%aromatic selectivity in hydrocarbons.This catalyst has excellent sintering resistance ability and maintains stable aromatics production over 570 h.The synthetic insights that postulate a mechanism for the metastable oxide-zeolite reorganization during hydrothermal synthesis could serve as a generic route to sinter-resistant oxide-zeolite composite materials with uniform,well-dispersed oxide nanoparticles in close intimacy with-and partially confined in-a zeolite matrix.

关 键 词：SYNGAS AROMATICS Sinter resistant Oxide-zeolite catalyst 

分 类 号：TQ241[化学工程—有机化工] TQ426