文献类型：期刊文献

英文题名：Enhanced Fischer-Tropsch synthesis performance on fe+ZSM5 bifunctional catalysts

作者：Zhang, Yulan Lin, Xizhu

第一作者：张玉兰

通信作者：Zhang, YL[1]

机构：[1]Guizhou Inst Technol, Key Lab Light Met Mat Proc Guizhou Prov, Doctor Rd Dang Wu Town Guian, Guiyang, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Key Lab Light Met Mat Proc Guizhou Prov, Doctor Rd Dang Wu Town Guian, Guiyang, Peoples R China.|贵州理工学院;

年份：2024

外文期刊名：JOURNAL OF POROUS MATERIALS

收录：;EI(收录号：20242316205153);Scopus(收录号：2-s2.0-85194938805);WOS:【SCI-EXPANDED(收录号:WOS:001236817700002)】；

基金：This work was supported financially by the National Nature Science Foundation of China [22368015] and the Guizhou Province Science and Technology Plan Project (QianKeHeJiChu-ZK[2023]YiBan128).

语种：英文

外文关键词：Fischer-Tropsch synthesis; Gasoline fuels; Bifunctional catalysts; Hierarchical porous Fe2O3 cage particles

摘要：Fischer-Tropsch synthesis (FTS) is viewed as an effective method for producing clean fuels. Catalysts with high activity and selectivity, especially the latter, are the key to improving the catalytic performance. Herein, we report the preparation of an excellent bifunctional Fe + ZSM5 catalyst by employing novel hierarchical porous Fe2O3 cage particles as FTS sites and porous ZSM5 as catalytic cracking sites. The selectivity for gasoline fuels (C5-C11) selectivity over the Fe + ZSM5(33) catalyst is as high as 65.1 wt%, which is greater than that of traditional outstanding than the traditionally zeolite-supported and physically mixed bifunctional catalysts. The enhanced catalytic performance can be attributed to the weak acid content governing the catalytic cracking. ZSM5 zeolite with a suitable weak acid content and desorption temperature can facilitate the cracking of C12+ hydrocarbons, thereby facilitating the C5-C11 selectivity and inhibiting the deactivation of active sites resulting from the aggregation of C12+ hydrocarbons. Fe + ZSM5(27) with an suitable weak acid content provides a higher CO conversion of 93.6% combined with an excellent C5-C11 selectivity of 62.7 wt%. This finding provides a promising strategy for designing bifunctional catalysts with controllable product distribution.