高含量煤在超临界水中气化制氢的实验研究  

Hydrogen Production by Gasification of High Concentration Coal in Supercritical Water

作　　者：李永亮[1] 郭烈锦[1] 张明颛[1] 薛晓欧[1] 曹长青[1] 陈敬炜[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：《西安交通大学学报》2008年第7期919-924,共6页Journal of Xi'an Jiaotong University

基　　金：国家重点基础研究规划资助项目(2003CB214500);国家自然科学基金创新研究群体科学基金资助项目(50521604)

摘　　要：针对当前煤在超临界水气化制氢研究中存在的物料质量分数低于5%、实验装置以高压釜居多且不能连续稳定产氢等问题,以高含量煤的气化制氢为研究目的,在反应器壁温650～800℃、反应压力23～27 MPa、物料流量3～7 kg/h的条件下,利用连续管流式反应系统对高含量煤进行了超临界水气化制氢实验研究,考察了温度、压力、物料流量、催化剂及氧化剂和物料含量对气化效果的影响规律,成功地将质量分数为16%的煤输送进反应器并稳定产气,煤的气化率和氢气产率分别为0.317和0.022.The problems in hydrogen production from coal gasification in supercritical water mclude low concentration of coal feedstock, discontinuous hydrogen production due to utilizing autoclave, and so on. Our work focuses on hydrogen production by gasification of high concentration coal in supercritical water. An experiment was carried out in a continuous-flow reactor system, where coal is gasified under the conditions of temperature at 650-800 ℃, pressure at 23-27 MPa and flow rate from 3 to 7 kg/h. The effects of main parameters （temperature, pressure, flow rate, catalyst, oxidant, concentration of coal） were investigated. Mass fraction 16% of coal was successfully transported into the reactor and steadily gasified, hence its gasification efficiency and hydrogen yield rate reached to 0. 317 and 0. 022, respectively.

关 键 词：煤 超临界水 气化 制氢 

分 类 号：TK91[动力工程及工程热物理]