Modelling of coal/biomass co-gasification in internal circulating fluidized bed using kinetic theory of granular mixture

被引：27
|
作者：
Chen Juhui [1 ,2 ]
Yin Weijie [1 ]
Wang Shuai [3 ]
Yu Guangbin [1 ]
Li Jiuru [1 ]
Hu Ting [2 ]
Lin Feng [2 ]
机构：
[1] Harbin Univ Sci & Technol, Sch Mech Engn, Harbin 150080, Heilongjiang, Peoples R China
[2] China Shipbldg Ind Corp, Res Inst 703, Harbin 150001, Heilongjiang, Peoples R China
[3] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2017年 / 148卷
基金：
中国博士后科学基金; 黑龙江省自然科学基金; 中国国家自然科学基金;
关键词：
Kinetic theory of granular mixture; Multi-component particles phases; Coal/biomass co-gasification; Coal/biomass co-combustion; Internal circulating fluidized bed; GAS-SOLID FLOW; BIOMASS GASIFICATION; DYNAMICS SIMULATION; COMBUSTION; CFD; DESULFURIZATION; EMISSIONS; BEHAVIOR;
D O I：
10.1016/j.enconman.2017.05.080
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A multi-fluid Eulerian model with the kinetic theory of granular mixture (KTGM) is employed for multi-component particles to simulate the coal/biomass co-gasification process in the internal circulating fluidized bed (ICFB). The hydrodynamic characteristic and chemical reaction kinetics are analyzed. The simulations with the KTGM model are in good agreement with experimental data. The instantaneous variables of volume fraction of particles, molar fraction of gas, molar concentration of carbon and temperature are described for the coal/biomass co-gasification process. The time-averaged distributions of volume fraction and velocity for both coal and biomass particles are given. The profiles of granular temperature with solid volume fraction and temperature are also discussed. The results reveal that the granular temperatures of both biomass and coal particles are obvious at a high temperature and a low solid volume fraction. Biomass particles have a higher granular temperature compared to coal particles. (C) 2017 Elsevier Ltd. All rights reserved.
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页码：506 / 516
页数：11
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