连续式超临界水中煤/CMC催化气化制氢  

AN EXPERIMENTAL STUDY OF THE HYDROGEN PRODUCTION FROM COAL/CMC GASIFIED IN SUPER CRITICAL WATER BY CONTINUOUS FLOW THERMAL-CATALYTIC REACTION SYSTEM

作　　者：闫秋会[1] 郭烈锦[1] 梁兴[1] 张西民[1] 郝小红[1] 马利静[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》2005年第6期874-877,共4页Acta Energiae Solaris Sinica

基　　金：国家重点基础研究发展规划项目(2003CB214500)

摘　　要：在向水煤浆中添加CMC(羧甲基纤维素钠),成功实现水煤浆高压均匀输送基础上,对超临界水中煤/CMC催化气化制氢性能进行了进一步研究.结果表明:在压力20～25MPa、停留时间15～30s、NaOH添加量0.1%、反应器外壁温650℃条件下,超临界水中煤/CMC催化气化制氢气体产物中H2摩尔含量远比常规气化高,主要气体产物是H2、CO2和CH4.增加物料中CMC的含量、升高压力均有利于提高气体产物中H2的产量,延长停留时间虽有利于物料气化但不利于氢气的制取.As coal was transported homogeneously at high pressure by adding the sodimn earboxymethylcellulose （CMC）, the hydrogen production from catalytic gasification of coal/CMC in supercritical water （SCW） was investigated. The experimental results showed that the molar fraction of hydrogen is higher than that in conventional gasification. H2, CO2 and CH4 are the main product gases, the higher pressure and higher CMC content is advantage of hydrogen production. Longer residence time is favorite to gasification of coal/CMC, but it is not advantage of hydrogen production from coal/CMC gasified in SCW at 20 - 25MPa, 15 - 30s and 650℃.

关 键 词：制氢 煤 CMC 超临界水 催化气化 

分 类 号：TK16[动力工程及工程热物理—热能工程]