燃料化学学报（中英文）2024，Vol.52Issue(9)：1266-1279,14.DOI:10.1016/S1872-5813(24)60453-6
Pt/CoxAl催化剂上乙酰丙酸甲酯加氢与甲醇水液相重整反应耦合制备γ-戊内酯
Synthesis of γ-valerolactone through coupling of methyl levulinate hydrogenation with aqueous phase reforming of methanol over Pt/CoxAl catalyst
摘要
Abstract
The synthesis of high-value γ-valerolactone(GVL)from biomass-derived methyl levulinate(ML)conventionally requires a high-pressure hydrogenation process,which incurs significant costs and safety concerns.This study proposes an innovative approach to produce GVL by integrating ML hydrogenation with aqueous phase reforming of methanol(APRM)using Pt/CoxAl catalysts,thereby eliminating the need for an external hydrogen source.The influence of catalyst composition,methanol concentration,and reaction temperature on catalytic performance has been carefully examined.The results suggest that Pt/Co1Al demonstrated exceptional activity,yielding up to 98.2％GVL,and maintaining stable performance over multiple cycles.Characterization results revealed that Pt0facilitates both APRM and ML hydrogenation,while Bronsted acid sites catalyze the hydrolysis of ML and lactonization of intermediates.The synergy between Pt0 and Brønsted acid sites is essential for GVL formation.The appropriate amount of Co not only enhances Pt dispersion but also increases Brønsted acid sites,thereby boosting catalytic efficiency.This work offers a sustainable and economically feasible strategy for transforming biomass derivatives into valuable fuels and chemicals.关键词
甲醇液相重整/乙酰丙酸甲酯/γ-戊内酯/Pt/加氢反应Key words
aqueous phase reforming of methanol/methyl levulinate/γ-valerolactone/Pt/hydrogenation分类
化学化工引用本文复制引用
吕泽祥,朱善辉,董梅,秦张峰,樊卫斌,王建国..Pt/CoxAl催化剂上乙酰丙酸甲酯加氢与甲醇水液相重整反应耦合制备γ-戊内酯[J].燃料化学学报（中英文）,2024,52(9):1266-1279,14.基金项目
The project was supported by National Natural Science Foundation of China(22278416)and Fundamental Research Program of Shanxi Province(202203021212326)and ICC CAS(SCJC-DT-2023-02).国家自然科学基金(22278416),山西省基础研究计划(202203021212326)和中国科学院山西煤炭化学研究所自主创新基金(SCIC-DT-2023-02))资助 （22278416）
