Model of combustion and dispersion of carbon deposited on porous bed material during bubbling fluidized bed combustion

被引：6

作者：

Winaya, I. Nyoman Suprapta ^{[2
]}

Shimizu, Tadaaki ^{[1
]}

Nonaka, Yousuke ^{[2
]}

Yamagiwa, Kazuaki ^{[2
]}

机构：

[1] Niigata Univ, Dept Chem & Chem Engn, Niigata 9502181, Japan

[2] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

来源：

FUEL | 2008年 / 87卷 / 10-11期

关键词：

carbon deposit; burning rate; horizontal dispersion;

D O I：

10.1016/j.fuel.2007.11.011

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Porous bed materials capture volatile matter as carbon deposits during fluidized bed combustion of high-volatile fuels such as biomass and wastes. Carbon deposits burn in a dense bed mixed with bed materials; thereby enhancing horizontal dispersion of carbonaceous materials. Commercial scaling-up requires a model that simultaneously assesses carbon deposit combustion and horizontal solid dispersion. This study measured the carbon deposit combustion rate using a fluidized bed. A one-dimensional model of carbon deposit combustion in a fluidized bed is based on the carbon deposit burning rate. A two-dimensional model incorporates reactions and solid dispersion to predict the horizontal concentration profile. Experiments using a bubbling fluidized bed validated that model. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1974 / 1981

页数：8

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