Author(s): GE Hui-Jun, GUO Wan-Jun, SHEN Lai-Hong, SONG Tao, GU Hai-Ming, JIANG Shou-Xi, Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University
Pages: 1371-1375
Year: 2015 Issue:  6
Journal: Journal of Engineering Thermophysics
Keyword:  hematite; oxygen carrier; chemical looping gasification of biomass; syngas yield;
Abstract: This work selected hematite as oxygen carrier in chemical looping gasification of biomass.The presence of hematite,gasification temperature and O/C mole ratio were investigated in a fluidized-bed reactor.Results showed that the presence of hematite resulted in the increase of carbon conversion efficiency and the decrease of syngas yield.Higher gasification temperature was favorable for the increase of both carbon conversion efficiency and syngas yield.The gas yields of CO and H₂ increased with the gasification temperature,while the ones of CO₂ and CH₄showed a decreasing trend.Carbon conversion efficiency increased with the increase of O/C mole ratio.However,provided oxygen improved with the increase of O/C mole ratio,resulting in the decrease of syngas yield.