摘要
以稻壳为原料,在自制的小型流化床上研究了生物质快速热解反应温度对生物油产率的影响.结果表明:在450℃、500℃、550℃和600℃4种热裂解温度中,500℃时平均产油率最高为52.87%.对热解产物进行分析发现:生物油是1种复杂的含氧有机化合物和水组成的混合物,几乎包含了所有化学类别的有机物;气体产物中主要以CO、CO2、CH4和C2-C4为主,CO、C2-C4和CH4的浓度随着温度的升高而上升;热解焦样则随温度的升高,其表面形态出现断裂破碎.
Effect of temperature in fast pyrolysis of biomass on the yield of bio-oil was studied in a self- manufactured small fluidized bed with rise husk as feedstock. Results show that when the pyrolysis is conducted at temperature of 450 ℃, 500 ℃, 550 ℃ and 600 ℃ respectively, the highest average bio-oil yield is 52.87 % at 500 ℃. Analysis of pyrolysis products indicates that the bio-oil is a mixture of water and complicated oxygenic compounds including almost all kinds of organic chemical substances. The gaseous products include mainly CO, CO2, CH4, and C2-C4. The concentration of CO, CH4 and C2-C4 in gas increases with higher temperature. With increasing temperature the surface of pyrolysis char becomes ruptured and broken.
出处
《动力工程》
CSCD
北大核心
2009年第6期585-589,共5页
Power Engineering
基金
国家重点基础研究发展计划资助项目(973计划)(2007CB210208)
国家自然科学基金资助项目(50776019)
教育部新世纪优秀人才支持计划资助项目(NCET-05-0469)
东南大学科技基金资助项目(XJ070326)
关键词
生物质
稻壳
流化床
热解温度
生物油
biomass
rice husk
fluidized bed
pyrolysis temperature
bio-oil
