Kinetic and thermodynamic study of ZnCl2 volatilizing in air atmosphere

Run Dong Li; Yan Long Li; Lei Wang; Xue Hui Tian; Xin Ke; Li Hong Wei; Tian Hua Yang

Kinetic and thermodynamic study of ZnCl₂ volatilizing in air atmosphere

Run Dong Li, Yan Long Li, Lei Wang, Xue Hui Tian, Xin Ke, Li Hong Wei, Tian Hua Yang

Shenyang Aerospace University

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

6 Scopus citations

Abstract

Aimed at high content of chlorine in MSWI fly ash in China, volatilization of chlorides of zinc(Zn) was studied. Firstly volatilization of zinc chloride(ZnCl₂) under air atmosphere was modeled employing Gibbs free energy criterion, then, heating rate influencing ZnCl₂ volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis, this paper worked out kinetic models of the volatilization of ZnCl₂. The results show that the volatilization process of ZnCl₂ is mainly the process of phase change of ZnCl₂ crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases, volatilization curves move forwards higher temperatures, and both volatilization ratio and temperature eigenvalue increase to some degree. A zeroorder kinetic model can be used to describe volatilization reaction accurately.

Original language	English
Pages (from-to)	30-34
Number of pages	5
Journal	Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology
Volume	16
Issue number	1
State	Published - Feb 2010
Externally published	Yes

Keywords

Phase change
Thermodynamics
Volatilization
Zero-order kinetic
ZnCl

Cite this

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title = "Kinetic and thermodynamic study of ZnCl2 volatilizing in air atmosphere",

abstract = "Aimed at high content of chlorine in MSWI fly ash in China, volatilization of chlorides of zinc(Zn) was studied. Firstly volatilization of zinc chloride(ZnCl2) under air atmosphere was modeled employing Gibbs free energy criterion, then, heating rate influencing ZnCl2 volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis, this paper worked out kinetic models of the volatilization of ZnCl2. The results show that the volatilization process of ZnCl2 is mainly the process of phase change of ZnCl2 crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases, volatilization curves move forwards higher temperatures, and both volatilization ratio and temperature eigenvalue increase to some degree. A zeroorder kinetic model can be used to describe volatilization reaction accurately.",

keywords = "Phase change, Thermodynamics, Volatilization, Zero-order kinetic, ZnCl",

author = "Li, {Run Dong} and Li, {Yan Long} and Lei Wang and Tian, {Xue Hui} and Xin Ke and Wei, {Li Hong} and Yang, {Tian Hua}",

year = "2010",

month = feb,

language = "英语",

volume = "16",

pages = "30--34",

journal = "Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology",

issn = "1006-8740",

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}

TY - JOUR

T1 - Kinetic and thermodynamic study of ZnCl2 volatilizing in air atmosphere

AU - Li, Run Dong

AU - Li, Yan Long

AU - Wang, Lei

AU - Tian, Xue Hui

AU - Ke, Xin

AU - Wei, Li Hong

AU - Yang, Tian Hua

PY - 2010/2

Y1 - 2010/2

N2 - Aimed at high content of chlorine in MSWI fly ash in China, volatilization of chlorides of zinc(Zn) was studied. Firstly volatilization of zinc chloride(ZnCl2) under air atmosphere was modeled employing Gibbs free energy criterion, then, heating rate influencing ZnCl2 volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis, this paper worked out kinetic models of the volatilization of ZnCl2. The results show that the volatilization process of ZnCl2 is mainly the process of phase change of ZnCl2 crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases, volatilization curves move forwards higher temperatures, and both volatilization ratio and temperature eigenvalue increase to some degree. A zeroorder kinetic model can be used to describe volatilization reaction accurately.

AB - Aimed at high content of chlorine in MSWI fly ash in China, volatilization of chlorides of zinc(Zn) was studied. Firstly volatilization of zinc chloride(ZnCl2) under air atmosphere was modeled employing Gibbs free energy criterion, then, heating rate influencing ZnCl2 volatilization was studied on the basis of experimental observations by means of a high temperature TG-DTA system. Based on thermodynamic analysis, this paper worked out kinetic models of the volatilization of ZnCl2. The results show that the volatilization process of ZnCl2 is mainly the process of phase change of ZnCl2 crystal and that of considerable creation of zinc oxide(ZnO). As heating rate increases, volatilization curves move forwards higher temperatures, and both volatilization ratio and temperature eigenvalue increase to some degree. A zeroorder kinetic model can be used to describe volatilization reaction accurately.

KW - Phase change

KW - Thermodynamics

KW - Volatilization

KW - Zero-order kinetic

KW - ZnCl

UR - http://www.scopus.com/inward/record.url?scp=77950976699&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:77950976699

SN - 1006-8740

VL - 16

SP - 30

EP - 34

JO - Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology

JF - Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology

IS - 1

ER -

Kinetic and thermodynamic study of ZnCl₂ volatilizing in air atmosphere

Abstract

Keywords

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