文献类型：期刊文献

英文题名：Harnessing the Synergistic Interplay of Fischer-Tropsch Synthesis (Fe-Co) Bimetallic Oxides in Na-FeMnCo/HZSM-5 Composite Catalyst for Syngas Conversion to Aromatic Hydrocarbons

作者：Nawaz, Muhammad Asif[1];Li, Minzhe[1];Saif, Maria[1];Song, Guiyao[1];Wang, Zihao[1];Liu, Dianhua[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：13

期号：8

起止页码：1966

外文期刊名：CHEMCATCHEM

收录：;EI(收录号：20210909977762);WOS:【SCI-EXPANDED(收录号:WOS:000620639700001)】；

基金：This work was supported by the National Key R&D Program of China (2017YFB0602204).

语种：英文

外文关键词：Fischer-Tropsch Synthesis; Fe− Co bimetallic oxides; Zeolite; Aromatics; CO2

摘要：The efficient conversion of syngas to aromatic hydrocarbons (STA) has attracted attention in recent years for its extensive utilization in the energy and defense sectors. In current study, the alloying of two active FT synthesis metal components (Fe-Co) was employed in Na-FeMnCo/HZSM-5 composite catalyst for STA process. Different calcination temperatures and Fe/Mn/Co molar ratios were modulated for harnessing the different Fe2O3/CoFe2O4/MnCo2O4 structures that possessed divergent structural, reduction, carburization and catalytic behaviors to give Fe3O4/FexC/CoxC reactive species. Herein, the effective inclusion of Co and Mn into Fe brought about the expedient geometric and electronic modulations for providing the homogenously distributed CoFe2O4 nanocrystals. This particular substitution of Fe played a vital role for tuning the density of oxygen vacancies, tailoring the reduction behavior of Fe-O-x, giving the Fe-Co alloy structure, and adjusting the adsorption capabilities of catalytic surface that mainly dictate the concentration of active Fe5C2 phase. An escalated selectivity to olefinic intermediates and subsequent higher aromatics fractions (similar to 55 %) thus was imparted with an inhibited CO2 (21 %) generation by meliorating the different Fischer-Tropsch/Aromatization reactions in stable CO conversion of similar to 98 %.