Effect of inorganic matter on reactivity and kinetics of coal pyrolysis

Quanrun Liu; Haoquan Hu; Qiang Zhou; Shengwei Zhu; Guohua Chen

doi:10.1016/j.fuel.2003.08.017

Effect of inorganic matter on reactivity and kinetics of coal pyrolysis

Quanrun Liu, Haoquan Hu, Qiang Zhou, Shengwei Zhu, Guohua Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

266 Citations (Scopus)

Abstract

Two Chinese coals, Shenfu subbituminous coal and Huolingele lignite, were used to investigate the effect of mineral matter in coal on reactivity and kinetic characteristics of coal pyrolysis. The experiments were carried out by using thermogravimetry to check the pyrolysis behavior of raw coal, HCl/HF demineralized coal and demineralized coal with inorganic matter (CaO, K2CO3and Al2O3) added, respectively. The results showed that inherent mineral in coal had no evident effect on the reactivity and kinetics of coal pyrolysis. CaO, K2CO3and Al2O3all had a catalytic effect on the reactivity of coal pyrolysis, their effects were closely related to temperature region and coal types. The pyrolysis process of all the samples studied can be described by three independent first order kinetic model. Addition of inorganic matter the activation energy decreased and the characteristic temperature of coal changed.

Original language	English
Pages (from-to)	713-718
Number of pages	6
Journal	Fuel
Volume	83
Issue number	6
DOIs	https://doi.org/10.1016/j.fuel.2003.08.017
Publication status	Published - 1 Apr 2004
Externally published	Yes

Keywords

Coal pyrolysis
Kinetics
Mineral

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

More information

10.1016/j.fuel.2003.08.017

Cite this

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title = "Effect of inorganic matter on reactivity and kinetics of coal pyrolysis",

abstract = "Two Chinese coals, Shenfu subbituminous coal and Huolingele lignite, were used to investigate the effect of mineral matter in coal on reactivity and kinetic characteristics of coal pyrolysis. The experiments were carried out by using thermogravimetry to check the pyrolysis behavior of raw coal, HCl/HF demineralized coal and demineralized coal with inorganic matter (CaO, K2CO3and Al2O3) added, respectively. The results showed that inherent mineral in coal had no evident effect on the reactivity and kinetics of coal pyrolysis. CaO, K2CO3and Al2O3all had a catalytic effect on the reactivity of coal pyrolysis, their effects were closely related to temperature region and coal types. The pyrolysis process of all the samples studied can be described by three independent first order kinetic model. Addition of inorganic matter the activation energy decreased and the characteristic temperature of coal changed.",

keywords = "Coal pyrolysis, Kinetics, Mineral",

author = "Quanrun Liu and Haoquan Hu and Qiang Zhou and Shengwei Zhu and Guohua Chen",

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T1 - Effect of inorganic matter on reactivity and kinetics of coal pyrolysis

AU - Liu, Quanrun

AU - Hu, Haoquan

AU - Zhou, Qiang

AU - Zhu, Shengwei

AU - Chen, Guohua

PY - 2004/4/1

Y1 - 2004/4/1

N2 - Two Chinese coals, Shenfu subbituminous coal and Huolingele lignite, were used to investigate the effect of mineral matter in coal on reactivity and kinetic characteristics of coal pyrolysis. The experiments were carried out by using thermogravimetry to check the pyrolysis behavior of raw coal, HCl/HF demineralized coal and demineralized coal with inorganic matter (CaO, K2CO3and Al2O3) added, respectively. The results showed that inherent mineral in coal had no evident effect on the reactivity and kinetics of coal pyrolysis. CaO, K2CO3and Al2O3all had a catalytic effect on the reactivity of coal pyrolysis, their effects were closely related to temperature region and coal types. The pyrolysis process of all the samples studied can be described by three independent first order kinetic model. Addition of inorganic matter the activation energy decreased and the characteristic temperature of coal changed.

AB - Two Chinese coals, Shenfu subbituminous coal and Huolingele lignite, were used to investigate the effect of mineral matter in coal on reactivity and kinetic characteristics of coal pyrolysis. The experiments were carried out by using thermogravimetry to check the pyrolysis behavior of raw coal, HCl/HF demineralized coal and demineralized coal with inorganic matter (CaO, K2CO3and Al2O3) added, respectively. The results showed that inherent mineral in coal had no evident effect on the reactivity and kinetics of coal pyrolysis. CaO, K2CO3and Al2O3all had a catalytic effect on the reactivity of coal pyrolysis, their effects were closely related to temperature region and coal types. The pyrolysis process of all the samples studied can be described by three independent first order kinetic model. Addition of inorganic matter the activation energy decreased and the characteristic temperature of coal changed.

KW - Coal pyrolysis

KW - Kinetics

KW - Mineral

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U2 - 10.1016/j.fuel.2003.08.017

DO - 10.1016/j.fuel.2003.08.017

M3 - Journal article

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VL - 83

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EP - 718

JO - Fuel

JF - Fuel

IS - 6

ER -

Effect of inorganic matter on reactivity and kinetics of coal pyrolysis

Abstract

Keywords

ASJC Scopus subject areas

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