文献类型：期刊文献

英文题名：Design of a novel porous Fe₂O₃ cage catalyst for the production of gasoline fuels via coupling Fischer-Tropsch with zeolite cracking

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 New Area, Guiyang 550003, 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 New Area, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2024

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001198303700001)】；

基金：This work was supported financially by National Nature Science Foundation of China [22368015] and Guizhou Province science and technology plan project (QianKeHeJiChu-ZK[2023]YiBan128).

语种：英文

摘要：Designing an efficient zeolite-introduced novel Fe-based catalyst is essential for the direct production of gasoline fuels via coupling Fischer-Tropsch synthesis (FTS) and catalytic cracking reactions. Herein, we constructed a novel Fe2O3 cage catalyst with a hierarchical porous structure, which served as FTS sites for physically mixing with porous ZSM5 to provide catalytic cracking sites. The hybrid Fe + ZSM5(27) catalyst achieved an excellent gasoline fuel (C-5-C-11) selectivity of 62.7 wt%, outperforming traditionally supported and physically mixed catalysts. Moreover, the aromatic content was 22.1% in terms of C5+ hydrocarbons, which was within the range of the restricted aromatic content. The enhanced catalytic performance can be attributed to the Si/Al ratio governing the oligomerization reaction. ZSM5 with a suitable Si/Al ratio can promote the oligomerization of C-2-C-4 olefins to produce desired C-5-C-11 hydrocarbons. Fe + ZSM5(27) with a Si/Al ratio of 27 demonstrated a prominent CO conversion of 93.6% with a higher C-5-C-11 selectivity of 62.7 wt%. This work provides a promising strategy for designing multifunctional catalysts to modulate product distribution.