摘要
以玉米芯为原料,羧甲基纤维素纳(CMC)为添加剂,利用连续管流反应器,在反应压力为22.5MPa^27.5MPa、反应器壁温为550℃~650℃、反应停留时间为0.33min^0.67min、物料浓度为3wt%~6wt%的条件下,对玉米芯超临界水气化制氢进行了实验研究。利用正交实验设计与分析方法,得到实验条件范围内玉米芯超临界水气化制氢的最佳反应参数,同时对气化过程主要操作参数的影响进行了分析。实验表明温度对气化影响最大,高温度有利于产氢,气化制氢的最佳压力为25MPa,反应停留时间越长气化越完全,低浓度生物质比高浓度生物质更容易气化。
The raw biomass feedstock of core cob mixed in sodium carboxymethylcellulose （CMC） was gasified for hydrogen production at a pressure range from 22.5MPa to 27.5MPa and a well temperature range from 550℃ to 650℃ with a reactor residence time of 0.33-0.67 min in a tubular flow reactor. Using orthogonal experimental method, the influences of the main parameters on corn cob gasification were investigated, and the optimum parameters in the experiment conditions were obtained. Results show that hydrogen yield is very sensitive to the temperature and high temperature is in favor of hydrogen production. The maximal hydrogen yield was attained at a pressure of 25MPa. More complete gasification is gained with the longer residence time. The feedstock with low biomass content is easier to gasify.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2006年第4期335-339,共5页
Acta Energiae Solaris Sinica
基金
国家重点基础规划项目(No.2003CB214500)
国家自然科学基金(50323001)
关键词
玉米芯
超临界水
制氢
最佳参数
corn cob
supercritical water
hydrogen production
optimum parameters
