摘要
为探索湿牛粪热解气化制富氢气体的参数,以湿牛粪为研究对象,在固定床反应器内采用单因素试验法,对不同温度、水分质量分数、升温速率和进料温度条件下,热解气产率、H_2产率、热解气成分、热值和碳转化率的变化进行实验研究和分析。结果表明:随着温度的升高和水分质量分数的增加,H_2容积百分含量、热解气产率和热值增大;当反应温度从700℃升至900℃时,H_2容积百分含量从35.99%增至49.19%,单位干物质产气量从277.37 mL/g增至924.26 mL/g,气体的热值从3681.58 kJ/m^3增至6167.56 kJ/m^3。升温速率和进料温度对H_2容积百分含量和产气率的影响不明显,在不同升温速率和进料温度条件下,H_2容积百分含量波动幅度较小。
In order to explore the operation parameter of pyrolysis for hydrogen-rich gas production with wet cattle manure, the wet cattle manure was used as feedstock to investigate the effect of the reactor temperature, moisture content, heating rate and feed temperature on pyrolysis gas yield, hydrogen yield, gas composition, gas heating value and carbon conversion efficiency through a single factor experimental method in a fixed bed reactor. The results show that the volumetric concentration of hydrogen, pyrolysis gas yield and heating value are increased steadily with increasing pyrolysis temperature and moisture content. When the pyrolysis temperature increases from 700 ℃ to 900 ℃, hydrogen volumetric concentration, pyrolysis gas yield and heating value are increased from 35.99% , 277.37 mL/g and 3681.58 kJ/m^3 to 49.19%, 924.26 mL/g and 6167.56 kJ/m^3, respectively. The effect of heating rate and feed temperature on volumetric concentration of hydrogen and pyrolysis gas yield is not significant. Hydrogen volumetric concentration has a slight fluctuation with different heating rates and feed temperatures.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第10期2675-2681,共7页
Acta Energiae Solaris Sinica
基金
公益性行业(农业)科研专项经费(201303091)
关键词
湿牛粪
热解
富氢气体
固定床反应器
wet cattle manure
pyrolysis
hydrogen-rich gas
fixed bed reactor
