低碳化学与化工2026，Vol.51Issue(5)：9-18,10.DOI:10.12434/j.issn.2097-2547.20250261
Al3+和Ga3+共掺杂CuZn催化剂催化合成气制低碳醇性能研究
Study on catalytic performances of Al3+and Ga3+co-doping CuZn catalysts for syngas to higher alcohols
摘要
Abstract
With the continuous reduction of fossil fuel reserves,continuous rise of oil prices and increasingly serious environmental problems,people have conducted in-depth research on alternative energy sources.Cu-based catalysts are one of the most important catalysts for the direct conversion of syngas to higher alcohols(C2～C6 alcohols,abbreviated as"C2+alcohols").However,there is a problem ofhigh proportion of methanol and low proportions of ethanol and C2+alcohols.A series of CuZn catalysts with varying n(Al)∶n(Ga)(CuZnAlGa)were synthesized by complete liquid-phase method.Properties such as phase compositions,textural properties and reducibilities were characterized by XRD,N2 adsorption/desorption,H2-TPR,etc.The syngas hydrogenation to C2+alcohols was carried out in a slurry bed reactor,and catalytic performances of CuZnAlGa were analyzed.The results show that the catalyst with n(Al)∶n(Ga)=1∶2 has the highest oxygen vacancy content and shows the best catalytic performance.After reacting for 168 h under the reaction conditions of 553 K,4.0 MPa and n(H2)∶n(CO)=2∶1,the CO conversion rate reaches 11.54％,and the proportions(mole fractions)of ethanol and C2+alcohols in the total alcohol are 71.25％and 86.88％,respectively.关键词
Al3+和Ga3+共掺杂/CuZn催化剂/完全液相法/乙醇/低碳醇Key words
Al3+and Ga3+co-doping/CuZn catalysts/complete liquid-phase method/ethanol/higher alcohols分类
化学化工引用本文复制引用
田敏,田星,李时荣,王峰,黄伟..Al3+和Ga3+共掺杂CuZn催化剂催化合成气制低碳醇性能研究[J].低碳化学与化工,2026,51(5):9-18,10.基金项目
太原工业学院引进人才科研资助项目(2024KJ031) （2024KJ031）
山西省来晋工作优秀博士(后)科研资助项目(2025LJ003) （后）
山西省高等学校科技创新项目(2025L124) （2025L124）
陕西省自然科学基础研究计划项目(2024JC-YBQN-0206,2024JC-YBQN-0174). （2024JC-YBQN-0206,2024JC-YBQN-0174）
