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Permanent link (DOI): https://doi.org/10.7939/R3RD3Z

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Hydrothermal Treatment of Low Rank Coal Open Access

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Other title
Subject/Keyword
Hydrothermal Treatment
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Sharifi, Mohammad
Supervisor and department
Liu, Qingxia (Chemical Engineering)
Gupta, Rajender (Chemical Engineering)
Examining committee member and department
Gupta, Rajender (Chemical Engineering)
Szymanski, Jozef (Civil Engineering)
Liu, Qingxia (Chemical Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2013-01-28T09:22:07Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
Abundance of low rank coal and increasing demand for energy provide an incentive for upgrading the low rank coal due to their high moisture and oxygen content. Various analyses were done to study the effect of the hydrothermal treatment on the physical and chemical structure of coal. Treatment of lignite coal results in a high reduction of moisture and oxygen especially at high temperature. Increasing the hydrophobicity and higher heating value of the coal are some advantages of hydrothermal treatment. Also increasing the initial pressure leads to decrease the energy required for the process and reduces the losing of volatile matter. In addition analysis of ash shows the reduction of alkali metals during the hydrothermal treatment. This should reduce slagging and fouling issues during coal combustion. This result is confirmed by analysis of extracted water.
Language
English
DOI
doi:10.7939/R3RD3Z
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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File title: University of Alberta
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