化工学报2019，Vol.70Issue(4)：1592-1599,8.DOI:10.11949/j.issn.0438⁃1157.20181241
基于CoFe2O4载氧体的生物质化学链气化反应特性
Characteristics of biomass chemical looping gasification with CoFe2O4 as oxygen carrier
摘要
Abstract
The evaluation of biomass chemical looping gasification (CLG) was conducted via a thermogravimetric analyzer and a fixed bed reactor using CoFe2O4 as oxygen carrier. The effects of mass ratio (oxygen carrier to biomass), steam content and reaction temperature on the CLG reactivity of biomass were explored and the recyclability of oxygen carrier was also studied. The oxygen carriers of fresh and reacted were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The TGA results indicate that CoFe2O4 can provide lattice oxygen to effectively improve the biomass gasification. The optimal performance can be achieved when the mass ratio, steam content and temperature are 0.8, 50%, and 900℃, respectively. After 5 cycles of reaction, high quality syngas can still be obtained. The oxygen carrier can be recycled and there is no obvious sintering and agglomeration.关键词
生物质/气化/合成气/化学链/CoFe2O4Key words
biomass/gasification/syngas/chemical looping/CoFe2O4分类
能源科技引用本文复制引用
王旭锋,刘晶,刘丰,杨应举..基于CoFe2O4载氧体的生物质化学链气化反应特性[J].化工学报,2019,70(4):1592-1599,8.基金项目
国家自然科学国际合作基金项目(51520105009) （51520105009）
