Char gasification kinetics using non-isothermal TGA

Zhi Jie Zhou; Xiao Lei Fan; Wei Zhang; Fu Chen Wang; Zun Hong Yu

Char gasification kinetics using non-isothermal TGA

Zhi Jie Zhou, Xiao Lei Fan, Wei Zhang, Fu Chen Wang, Zun Hong Yu

Research output: Contribution to journal › Article › peer-review

Abstract

The gasification kinetics in CO2 of Shenfu char was investigated using both isothermal and non-isothermal TGA. In non-isothermal TGA, Doyle and Coats-Redfern approximate equations can be used to simulate char gasification behaviors. Comparing with E obtained via isothermal TGA, two approximations obtained the best yield at different heating rates, respectively. After comparing correlation coefficient of approximate simulations, it is found that the optimum method to calculate gasification kinetics parameters is using Coats-Redfern approximation in non-isothermal TGA and at a heating rate of 15 °C/min.

Original language	English
Pages (from-to)	219-222
Number of pages	3
Journal	Meitan Xuebao/Journal of the China Coal Society
Volume	31
Issue number	2
Publication status	Published - Apr 2006

Keywords

Char gasification
Gasification kinetics
Non-isothermal TGA
Thermogravimetric analysis

Cite this

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title = "Char gasification kinetics using non-isothermal TGA",

abstract = "The gasification kinetics in CO2 of Shenfu char was investigated using both isothermal and non-isothermal TGA. In non-isothermal TGA, Doyle and Coats-Redfern approximate equations can be used to simulate char gasification behaviors. Comparing with E obtained via isothermal TGA, two approximations obtained the best yield at different heating rates, respectively. After comparing correlation coefficient of approximate simulations, it is found that the optimum method to calculate gasification kinetics parameters is using Coats-Redfern approximation in non-isothermal TGA and at a heating rate of 15 °C/min.",

keywords = "Char gasification, Gasification kinetics, Non-isothermal TGA, Thermogravimetric analysis",

author = "Zhou, {Zhi Jie} and Fan, {Xiao Lei} and Wei Zhang and Wang, {Fu Chen} and Yu, {Zun Hong}",

year = "2006",

month = apr,

language = "English",

volume = "31",

pages = "219--222",

journal = "Meitan Xuebao/Journal of the China Coal Society",

issn = "0253-9993",

publisher = "China Coal Society",

number = "2",

}

TY - JOUR

T1 - Char gasification kinetics using non-isothermal TGA

AU - Zhou, Zhi Jie

AU - Fan, Xiao Lei

AU - Zhang, Wei

AU - Wang, Fu Chen

AU - Yu, Zun Hong

PY - 2006/4

Y1 - 2006/4

N2 - The gasification kinetics in CO2 of Shenfu char was investigated using both isothermal and non-isothermal TGA. In non-isothermal TGA, Doyle and Coats-Redfern approximate equations can be used to simulate char gasification behaviors. Comparing with E obtained via isothermal TGA, two approximations obtained the best yield at different heating rates, respectively. After comparing correlation coefficient of approximate simulations, it is found that the optimum method to calculate gasification kinetics parameters is using Coats-Redfern approximation in non-isothermal TGA and at a heating rate of 15 °C/min.

AB - The gasification kinetics in CO2 of Shenfu char was investigated using both isothermal and non-isothermal TGA. In non-isothermal TGA, Doyle and Coats-Redfern approximate equations can be used to simulate char gasification behaviors. Comparing with E obtained via isothermal TGA, two approximations obtained the best yield at different heating rates, respectively. After comparing correlation coefficient of approximate simulations, it is found that the optimum method to calculate gasification kinetics parameters is using Coats-Redfern approximation in non-isothermal TGA and at a heating rate of 15 °C/min.

KW - Char gasification

KW - Gasification kinetics

KW - Non-isothermal TGA

KW - Thermogravimetric analysis

M3 - Article

SN - 0253-9993

VL - 31

SP - 219

EP - 222

JO - Meitan Xuebao/Journal of the China Coal Society

JF - Meitan Xuebao/Journal of the China Coal Society

IS - 2

ER -

Char gasification kinetics using non-isothermal TGA

Abstract

Keywords

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