燃料化学学报2013，Vol.41Issue(6)：649-656,8.
基于镍基载氧体的串行流化床煤化学链燃烧实验
Chemical looping combustion of coal in interconnected fluidized bed with NiO/Al2O3 oxygen carrier
摘要
Abstract
The chemical looping combustion of coal with NiO/Al2O3 oxygen carrier was experimentally investigated in a 1 kWth interconnected fluidized bed.The carbon conversion ηC,coal,the conversion of gaseous products,the carbon capture efficiency ηc,cap and the coal combustion efficiency ηcombust were calculated and discussed.Several influencing factors including the temperature tFR,excess air coefficy α,the ratio of steam flow rate in the loopseal to the feed coal SLs/C,the ratio of steam flow rate in the fuel reactor to the feed coal SFR/C were examined.The results indicate that the increase in either tFR or SLs/C is favorable for increasing ηc,coal and the conversion of gas products from coal gasification.A larger α can also give a higher ηC,coal.With the SFR/C increasing from 0.8 to 1.6,ηC,coal first increases and then decreases with the maximum at SFR/C =1.2.ηcombust has the same trends as ηc,coal ; it is mainly affected by the loss of carbon in the fly ash.Contrary to α or SLs/C,increasing TFR can give a higher ηc.cap.关键词
载氧体/串行流化床/煤/化学链燃烧Key words
oxygen carrier/ interconnected fluidized beds/ coal/ chemical looping combustion分类
能源科技引用本文复制引用
顾海明,吴家桦,沈来宏,肖军..基于镍基载氧体的串行流化床煤化学链燃烧实验[J].燃料化学学报,2013,41(6):649-656,8.基金项目
国家自然科学基金(51276037,50976023) （51276037,50976023）
江苏省科技支撑计划(BE2012166) （BE2012166）
东南大学优秀博士学位论文基金(YBJJ1206). （YBJJ1206）
