High quality fuel gas from biomass pyrolysis with calcium oxide.
The removal of CO2 and tar in fuel gas produced by biomass thermal conversion has aroused more attention due to their adverse effects on the subsequent fuel gas application. High quality fuel gas production from sawdust pyrolysis with CaO was studied in this paper. The results of pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments indicate that the mass ratio of CaO to sawdust (Ca/S) remarkably affects the behavior of sawdust pyrolysis. On the basis of Py-GC/MS results, one system of a moving bed pyrolyzer coupled with a fluid bed combustor has been developed to produce high quality fuel gas. The lower heating value (LHV) of the fuel gas was above 16MJ/Nm(3) and the content of tar was under 50mg/Nm(3), which is suitable for gas turbine application to generate electricity and heat. Therefore, this technology may be a promising route to achieve high quality fuel gas for biomass utilization.
School of Environmental Science and Technology, Tianjin University, Tianjin 300072, China; Energy Research Institute of Shandong Academy of Sciences, Jinan 250014, China.
Baofeng
B
Zhao
Energy Research Institute of Shandong Academy of Sciences, Jinan 250014, China.
Xiaodong
X
Zhang
Energy Research Institute of Shandong Academy of Sciences, Jinan 250014, China.
Lei
L
Chen
Energy Research Institute of Shandong Academy of Sciences, Jinan 250014, China.
Laizhi
L
Sun
Energy Research Institute of Shandong Academy of Sciences, Jinan 250014, China.
Hongyu
H
Si
School of Environmental Science and Technology, Tianjin University, Tianjin 300072, China; State Key Lab of Engines, Tianjin University, Tianjin 300072, China. Electronic address: chen@tju.edu.cn.
Guanyi
G
Chen
D056804:Biofuels; D018533:Biomass; D001709:Biotechnology / Q000295:instrumentation / Q000379:methods*; D017610:Calcium Compounds / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature; D010087:Oxides / Q000737:chemistry*; D014934:Wood / Q000737:chemistry*
D056804:Biofuels; D017610:Calcium Compounds; D010087:Oxides; C016538:lime
Biomass pyrolysis; CaO; High quality fuel gas