摘要
本文采用多孔介质燃烧器对甲烷/二氧化碳富燃部分氧化开展实验研究,研究了燃料中CO_2添加量对于非催化部分氧化重整制取合成气的影响。当空气流量为5L/min时,调节入口CO_2/CH_4比例及当量比,确定了多孔介质富燃燃烧的稳定区间,测试了稳定工况下的温度分布和出口组分。当量比为1.3时,稳定工况下CO_2/CH_4可达到1.5。当量比为1.6,CO_2/CH_4为0.5时,燃料重整效率可达到47.7%。燃料中CO_2的加入可在一定程度上促进水气变换反应逆过程的进行,回收部分显热,提高燃料重整效率,同时可减少CO_2净排放。
Rich combustion in a porous media burner was used for the partial oxidation reforming of CH4/CO2, which is a potential non-catalysis way for syngas production from biomass-derived gas.The effect of CO2 injected in methane was studied in the experiment. As the inlet air flow rate was5 L/min, for various inlet CO2/CH4 and equivalence ratios, the flammability of rich combustion in the porous media was determined. Within the flame stability limit, the temperature distributions and species profiles were measured. When the equivalence ratio was 1.3, the ratio of CO2/CH4 reached 1.5.As the equivalence ratio was 1.6 and the ratio of CO2/CH4 was 0.5, the reforming efficiency reached47.7%. With the injection of CO2 in the fuel, the inverse process of water gas shift reaction was promoted that increased the fuel reforming efficiency, meanwhile, the net emission of CO2 was reduced.
作者
曾洪瑜
王雨晴
史翊翔
蔡宁生
ZENG Hong-Yu WANG Yu-Qing SHI Yi-Xiang CAI Ning-Sheng(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2017年第10期2269-2275,共7页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目(No.51576112)
关键词
多孔介质
富燃
部分氧化
二氧化碳
porous media
rich combustion
partial oxidation
carbon dioxide
