Integrated biomass gasification using the waste heat from hot slags: Control of syngas and polluting gas releases

Sun, Yongqi1; Seetharaman, Seshadri2; Liu, Qianyi1; Zhang, Zuotai1,3; Liu, Lili1; Wang, Xidong1,4

2016-11

10.1016/j.energy.2016.07.161

ENERGY   影响因子和分区

0360-5442

1873-6785

In this study, the thermodynamics of a novel strategy, i.e., biomass/CO2 gasification integrated with heat recovery from hot slags in the steel industry, were systemically investigated. Both the target syngas yield and the polluting gas release were considered where the effect of gasifying conditions including temperature, pressure and CO2 reacted was analyzed and then the roles of hot slags were further clarified. The results indicated that there existed an optimum temperature for the maximization of H-2 production. Compared to blast furnace slags, steel slags remarkably increased the CO yield at 600-1400 degrees C due to the existence of iron oxides and decreased the S-containing gas releases at 400-700 degrees C, indicating potential desulfurizing ability. The identification of biomass/CO2 gasification thermodynamics in presence of slags could thus provide important clues not only for the deep understanding of biomass gasification but also for the industrial application of this emerging strategy from the viewpoint of syngas optimization and pollution control. (C) 2016 Elsevier Ltd. All rights reserved.

Thermodynamics Biomass/CO2 gasification Slag heat recovery Syngas yield Polluting gas release

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51522401] ; National Natural Science Foundation of China[51472007] ; National Natural Science Foundation of China[51272005]

Thermodynamics ; Energy & Fuels

Thermodynamics ; Energy & Fuels

WOS:000387194800014

PERGAMON-ELSEVIER SCIENCE LTD

20163302711275

Biomass ; Blast furnaces ; Hydrogen production ; Iron oxides ; Pollution control ; Slags ; Steelmaking ; Synthesis gas ; Thermodynamics ; Waste heat

Gas Fuels:522 ; Energy Losses (industrial and residential):525.4 ; Blast Furnaces:532.2 ; Steel:545.3 ; Thermodynamics:641.1 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2

ENGINEERING

Web of Science

1.Peking Univ, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China
2.Royal Inst Technol, Dept Mat Sci & Engn, Vallslingan 14, SE-18752 Taby, Sweden
3.South Univ Sci & Technol China, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
4.Peking Univ, Beijing Key Lab Solid Waste Utilizat & Management, Coll Engn, Beijing 100871, Peoples R China

Sun, Yongqi,Seetharaman, Seshadri,Liu, Qianyi,et al. Integrated biomass gasification using the waste heat from hot slags: Control of syngas and polluting gas releases[J]. ENERGY,2016,114:165-176.

Sun, Yongqi,Seetharaman, Seshadri,Liu, Qianyi,Zhang, Zuotai,Liu, Lili,&Wang, Xidong.(2016).Integrated biomass gasification using the waste heat from hot slags: Control of syngas and polluting gas releases.ENERGY,114,165-176.

Sun, Yongqi,et al."Integrated biomass gasification using the waste heat from hot slags: Control of syngas and polluting gas releases".ENERGY 114(2016):165-176.