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

被引：19

作者：

Sun, Yongqi ^{[1
]}

Seetharaman, Seshadri ^{[2
]}

Liu, Qianyi ^{[1
]}

Zhang, Zuotai ^{[1
,3
]}

Liu, Lili ^{[1
]}

Wang, Xidong ^{[1
,4
]}

机构：

[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

来源：

ENERGY | 2016年 / 114卷

基金：

中国国家自然科学基金;

关键词：

Thermodynamics; Biomass/CO2; gasification; Slag heat recovery; Syngas yield; Polluting gas release; HIGH-TEMPERATURE SLAGS; BLAST-FURNACE SLAG; CARBON-DIOXIDE CAPTURE; HYDROGEN-RICH GAS; CATALYTIC GASIFICATION; STEAM GASIFICATION; CO2/O-2; ATMOSPHERE; COAL-GASIFICATION; STEEL-INDUSTRY; FLUIDIZED-BED;

D O I：

10.1016/j.energy.2016.07.161

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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.

引用

页码：165 / 176

页数：12

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