Indexed by:Journal Papers
Date of Publication:2015-09-01
Journal:JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Included Journals:SCIE、EI
Volume:115
Page Number:262-267
ISSN No.:0165-2370
Key Words:Brown coal; FT-IR spectroscopy; In-situ pyrolysis; Weak covalent bond; Curve fitting
Abstract:In situ diffuse reflectance infrared fourier transform spectroscopy (DRIFTS) was used to characterize the thermal decomposition of the functional groups in Huolinhe brown coal. The PeakFit program for curve fitting was used to analyze the overlapped IR bands. The formation and decomposition of the functional groups show different trends during the heat treatment. The methyl and carboxyl groups decomposed with increasing the temperature, which is closely related to the release of CO2, CH4. The amounts of ester and anhydride groups rise reach a maximum then fall. Different types of OH hydrogen bonds were also observed after the absorbed water was removed at high temperature. The results indicate that the curve-fitting analysis well represents the change in the chemical bonds in coal. (C) 2015 Elsevier B.V. All rights reserved.
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Institute of Coal Chemical Engineering, School of Chemical Engineering, Dalian University of Technology
Discipline:Chemical Technology. Energy Chemical Technology
Business Address:Room C429,Lab of Chemical Engineering,West Campus, Dalian University of Technology
Contact Information:+86-411-84986160
e-mail : ljin@dlut.edu.cn
电话 : 0411-84986160
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