超临界水中木质素/CMC催化气化制氢  

ANALYSIS OF HYDROGEN PRODUCTION WITH CATALYSIS GASIFICATION OF LIGNIN IN SUPERCRITICAL WATER

作　　者：关宇[1] 郭烈锦[1] 裴爱霞[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《太阳能学报》2007年第10期1140-1145,共6页Acta Energiae Solaris Sinica

基　　金：国家重点基础研究发展计划973(2003CB214500);国家自然科学基金会优秀重点实验室基金;创新研究群体科学基金项目(50323001;50521604)

摘　　要：在间歇式高压反应釜中,以碱性化合物K_2CO_3和Ca(OH)_2以及Ru/C为催化剂,对木质素在超临界水中的气化制氢特性进行了实验研究。结果表明:3种催化剂都有较好的催化作用,其中Ru/C的效果最佳,几种催化剂混合使用的效果要比单独一种催化剂使用时好,但是其提高的幅度不很明显。另外,随着温度的升高,H_2和CH_4的产气量以及氢转化率等都相应的升高。Hydrogen production with biomass gasification in supercritical water has been developed in resent years. Wet biomass could be directly dealt with in supercritical water so as to avoid the drying process with high energy-consumption. Lignin, as one of the important compositions of biomass, its gasification in supercritical water to produce hydrogen-rich gas was performed in this work, and K2 CO3, Ca（OH）2 and Ru/C were used as catalysts during the gasification processes The experimental results show that all the catalysts have well catalytic effect for the gasification of lignin and hydrogen production in which Ru/C is the best one. The effect of mix usage of several catalysts for hydrogen productivity was better than that of single catalyst. And the produtivity of methane and hydrogen could improved with increasing temperature.

关 键 词：生物质 超临界水 气化 制氢 

分 类 号：TK91[动力工程及工程热物理]