NDLI: Gasification characteristics of coal char under CO$

Content Provider	Springer Nature Link
Author	Zhao, Houyin Cao, Yan Orndorff, William Pan, Wei Ping
Copyright Year	2014
Abstract	The char gasification characteristics and the composition of evolved gases in a CO$_{2}$ environment have been studied using a thermogravimetric analyzer (TG) coupled with a mass spectrometer. Three types of coal char were studied: lignite (TXL), sub-bituminous (PRB), and bituminous (KYB). TG results showed that the reactivities of TXL and PRB were higher than that of KYB, and the reactivity of TXL was higher than that of PRB. The characterization of the chars implied that the mineral content in the char plays an important role in the reactivity and that the surface area and pore volume may accelerate the reactivity of chars. The evolved gases from three chars were mainly CO and SO$_{2}$. SO$_{2}$ was slightly delayed by CO during gasification of TXL and PRB chars, but for KYB, SO$_{2}$ and CO formed in the same temperature range, but at higher temperatures compared with TXL and PRB. The CO production of KYB was the best, 0.98 mg mg$^{−1}$; and SO$_{2}$ was the least, 0.031 mg mg$^{−1}$. PRB and TXL chars had similar CO production, but SO$_{2}$ in TXL was higher.
Starting Page	1267
Ending Page	1272
Page Count	6
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	116
Issue Number	3
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-01-30
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Char CO$_{2}$ gasification TG-MS Kinetics Evolved gas Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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