燃料化学学报（中英文）2026，Vol.54Issue(3)：71-78,8.DOI:10.1016/S1872-5813(25)60607-4
基于碱改性Ni/Al2O3催化剂的生物质气化模拟气甲烷化性能研究
Research on the methanation properties of biomass gasification simulation based on alkali-modified Ni/Al2O3 catalysts
摘要
Abstract
In this paper,the Ni/Al2O3 monolithic catalyst with 15％Ni content was prepared using cordierite as a matrix,and the catalyst was modified with 10％NaOH to study the methanation performance of biomass gasification simulated gas based on alkali-modified Ni/Al2O3 monolithic catalyst.BET,TEM,H2-TPR,XRD,CO2-TPD and TG were used to characterize the physicochemical properties of the catalyst before and after modification.The results indicated that the CO conversion rate trends of unmodified and modified Ni/Al2O3 monolithic catalysts over 2 h were fundamentally consistent.However,the Ni/Al2O3 catalysts modified for 2 h demonstrated significantly enhanced performance compared to those modified for 1 h.Regarding CH4 selectivity,the modified Ni/Al2O3 catalyst exhibited markedly better performance than the unmodified Ni/Al2O3 catalyst,confirming the enhanced methane performance of the alkali-modified Ni/Al2O3 monolithic catalyst.Under optimized conditions(H2/CO volume ratio of 3∶1,space velocity of 10000 mL/(g·h),and temperature of 400℃),the methanation performance of the Ni/Al2O3 monolithic catalyst modified for 2 h reached its peak,achieving a CO conversion rate of 97％with 100％CH4 selectivity.关键词
生物质气化/甲烷化/堇青石/整体式催化剂Key words
biomass gasification/methanation/cordierite/monolithic catalyst分类
化学化工引用本文复制引用
邢万丽,杨冰洁,张万里,开兴平,周全,杨天华..基于碱改性Ni/Al2O3催化剂的生物质气化模拟气甲烷化性能研究[J].燃料化学学报（中英文）,2026,54(3):71-78,8.基金项目
Supported by the National Natural Science Foundation of China(52506188,52476215),Natural Science Foundation of Liaoning Province(2024-MS-139,2024JH3/10200047)and Scientific Research Program of Department of Education of Liaoning Province(310125042,LJ212410143033). （52506188,52476215）
