Kinetics of heavy metal vaporization from coal in a fluidized bed by an inverse model

被引：11

作者：

Liu, Jing ^{[1
]}

Liu, Xuefeng ^{[1
]}

Gauthier, D. ^{[2
]}

Abanades, S. ^{[2
]}

Flamant, G. ^{[2
]}

Qiu, Jianrong ^{[1
]}

Zheng, Chuguang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China

[2] PROMES, CNRS, Proc Mat & Solar Energy Lab, Font Romeu, France

来源：

ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING | 2010年 / 5卷 / 02期

关键词：

coal; heavy metal; vaporization; kinetics; fluidized bed; TRACE-ELEMENTS; COMBUSTION; INCINERATION; EMISSIONS; BEHAVIOR; VOLATILIZATION; SORBENTS; CADMIUM; CD; PB;

D O I：

10.1002/apj.278

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This study addresses the kinetics of heavy metal vaporization during fluidized bed thermal treatment of coal. Both direct and inverse models were developed in transient conditions. The direct model predicts the time course of the metal concentration in the gas from the vaporization rate profile. The inverse model was developed and validated to predict the metal's vaporization rate from its concentration in the outlet gas. A method to derive the kinetic law of heavy metal vaporization during fluidized bed thermal treatment of coal from the global model and the experimental measurements is derived and illustrated. A first-order law was fitted for the mineral matrix and a second-order law was fitted for coal. This method can be applied to any matrix, whether it is mineral matrix or organic matrix. (C) 2009 Curtin University of Technology and John Wiley & Sons, Ltd.

引用

页码：266 / 273

页数：8

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