燃料化学学报（中英文）2024，Vol.52Issue(1)：29-37,9.DOI:10.19906/j.cnki.JFCT.2023036
K改性NiMoS/ZnAl氧化物负载型催化剂合成气制低碳醇性能研究
K-modified NiMoS/ZnAl oxide catalysts for higher alcohols synthesis from syngas
摘要
Abstract
Improving the C2+alcohols yield is highly desirable for the direct synthesis of higher alcohols from syngas.In this work,a series of highly dispersed K-modified NiMoS catalysts with different K contents on ZnAl-mixed oxide support were prepared by the combination of co-precipitation and impregnation method.And their performance in higher alcohols synthesis(HAS)from syngas was investigated.The results show that the introduction of K can modulate the stacking degree of MoS2 slabs,and improve the interaction between NiSx and NiMoS phases.The as-prepared catalyst is conducive to promote the insertion of CHx and non-dissociative CO in HAS,and effectively suppress the generation of hydrocarbons and CO2.The 0.6KNiMoS/ZnAl catalyst exhibits the most double-layer MoS2 slabs(33.7％)and highly synergetic effects between NiSx and NiMoS to achieve the total alcohols selectivity(69.8％)and space-time yield(78.6 mg/(g·h))of C2+alcohols.关键词
NiMoS/ZnAl催化剂/K改性/合成气/低碳醇/协同效应Key words
NiMoS/ZnAl catalysts/K modification/synthesis gas/higher alcohols/synergetic effect分类
化学化工引用本文复制引用
曹轶华,张鑫,阴雪利,甘永豪,代小平..K改性NiMoS/ZnAl氧化物负载型催化剂合成气制低碳醇性能研究[J].燃料化学学报（中英文）,2024,52(1):29-37,9.基金项目
The project was supported by the National Natural Science Foundation of China(21576288).国家自然科学基金(21576288)资助 （21576288）
