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Accession number: 20131016090525
Title: Study on reaction mechanism of Co-combustion of oil shale semi-coke and corn stalks by the absolute reaction rate theory
Authors: Wang, Qing1 ; Wang, Xudong1; Jia, Chunxia1; Liu, Hongpeng1
Author affiliation: 1Engineering Research Centre of Oil Shale Comprehensive Utilization(Northeast Dianli University), Ministry of Education, Jilin 132012, Jilin Province, China
Corresponding author: Wang, Q. (rlx888@126.com)
Source title: Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Abbreviated source title: Zhongguo Dianji Gongcheng Xuebao
Volume:33
Issue: 5
Issue date: February 15, 2013
Publication year: 2013
Pages: 28-34
Language: Chinese
ISSN: 02588013
CODEN: ZDGXER
Document type: Journal article (JA)
Publisher: Chinese Society of Electrical Engineering, Qinghe, Beijing, 100085, China
Abstract: A series of combustion experiments for Huadian oil shale semi-coke, corn stalks as well as their mixture was conducted by the Pyris-1 TGA thermogravimetric analyzer. Theoretical study on co-combustion mechanism of various samples was investigated. Based on the TG-DTG curves, the whole combustion process was divided into three combustion reaction stages, that is, low-temperature stage, transition and high-temperature stage. A study on combustion release index of different samples was analyzed under different combustion stages. The results reveal that there is a tendency to increase for the release index with increasing the ratio of the corn stalks. And the release index of the samples is maximum in the low-temperature stage. Furthermore, the activation enthalpy and activation entropy were respectively calculated based on absolute reaction rate theory. The results show that with increasing the ratio of the cornstalks, the activation enthalpy on the transition and high-temperature stage get higher than the low-temperature stage, and the activation entropy from the three stages decreases in turn. Finally, referred to combustion characteristic parameters, it can be observed that with the addition of cornstalk ratio, the combustion reaction stages move forward and combustion features of Huadian oil shale semi-coke can obviously get improved. © 2013 Chinese Society for Electrical Engineering.
Number of references: 26
Main heading: Combustion
Controlled terms: Enthalpy  -  Entropy  -  Oil shale processing  -  Reaction rates  -  Temperature
Uncontrolled terms: Activation enthalpies  -  Activation entropies  -  Corn stalk  -  Oil shale semi cokes  -  Reaction rate theory  -  Thermogravimetric analyzers
Classification code: 513.1 Petroleum Refining, General -  521.1 Fuel Combustion -  641.1 Thermodynamics -  801.4 Physical Chemistry
Database: Compendex
Compilation and indexing terms,
© 2013 Elsevier Inc.
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