燃料化学学报2015，Vol.43Issue(12)：1433-1438,6.
碱金属钾对Ni基催化剂纤维素水蒸气气化活性的影响
Influence of potassium on the performance of nickel-based catalyst in the steam gasification of cellulose
摘要
Abstract
The influence of alkali metal volatilization on the performance of nickel-based catalyst in the steam gasification of cellulose biomass was investigated in a two-stage fixed bed reactor. The results show that potassium is deposited on the catalyst surface with the volatilization of potassium salt during the catalytic steam reforming of potassium-loaded cellulose. The existence and deposition of proper amount of potassium may suppress the coke deposition and enhance the activity of nickel-based catalyst, which is of benefit to producing more hydrogen in the steam gasification of biomass. However, excessive amount of potassium loaded in cellulose may reduce the activity of nickel-based catalyst; moreover, with the repetitious operations, potassium is accumulated on the catalyst surface, which may lead to an obvious inhibitory effect on the activity and stability of nickel-based catalyst in the steam gasification of biomass.关键词
碱金属/镍基催化剂/纤维素/水蒸气气化Key words
alkali metals/nickel-based catalyst/cellulose/steam gasification分类
能源科技引用本文复制引用
曾志伟,邹俊,杨海平,王贤华,吴春飞,PT William,陈汉平..碱金属钾对Ni基催化剂纤维素水蒸气气化活性的影响[J].燃料化学学报,2015,43(12):1433-1438,6.基金项目
The project was supported by National Natural Science Foundation of China ( 51376076, 51306066 ) and the Major State Basic Research Development Program of China (937 program, 2013CB228102). 国家自然科学基金 (51376076, 51306066)和国家重点基础研究发展规划(973计划, 2013CB228102)资助项目 （ 51376076, 51306066 ）
