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co-gasification, oil sands coke, biomass

Gao, Chen

Supervisor and department: Dr. Rajender Gupta Chemical Engineering

Examining committee member and department: Dr. Zhenghe Xu Chemical Engineering Dr. Amit Kumar Mechanical Engineering

Department: Department of Chemical and Materials Engineering

Specialization:

Date accepted: 2010-07-26T21:46:38Z

Graduation date: 2010-11

Degree: Master of Science

Degree level: Master's

Abstract: Chars were obtained from individual fuels and blends with different blend ratios of coal, coke and biomass in Drop Tube Furnace at different temperatures. Based on TGA experimental data, it was shown that the effect of the blending ratio of biomass to other fuels on the reactivity of the co-pyrolyzed chars is more pronounced on the chars prepared at lower temperature, due to the presence of synergetic effects originating from the interaction of the two fuels.SEM images showed differences in shapes and particle size of char particles from biomass and coal-coke. These also show the agglomeration of coal and coke chars with biomass char particles at high temperatures. The agglomeration may be the reason for the non-additive behavior of the blends. BET analysis showed increase in the surface area with an increasing temperature for biomass and coal, but the trend for coke was inversely related to the temperature.

Language: English

DOI: doi:10.7939-R3B724

Rights: License granted by chen gao cgao1@ualberta.ca on 2010-07-22T02:35:24Z GMT: 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 the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein 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.





Author: Gao, Chen

Source: https://era.library.ualberta.ca/


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University of Alberta Co-gasification of Biomass with Coal and Oil Sand Coke In a Drop Tube Furnace by Chen Gao A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Chemical Engineering Department of Chemical and Materials Engineering ©Chen Gao Fall 2010 Edmonton, Alberta 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 authors prior written permission. Examining Committee Dr.
Rajender Gupta, Chemical and Materials Engineering, University of Alberta Dr.
Zhenghe Xu, Chemical and Materials Engineering, University of Alberta Dr.
Amit Kumar, Mechanical Engineering, University of Alberta ABSTRACT Chars were obtained from individual fuels and blends with different blend ratios of coal, coke and biomass in Drop Tube Furnace at different temperatures.
Based on TGA experimental data, it was shown that the effect of the blending ratio of biomass to other fuels on the reactivity of the co-pyrolyzed chars is more pronounced on the chars prepared at lower temperature, due to the presence of synergetic effects originating from the interaction of the two fuels. SEM images showed differences in shapes and particle size of char particles from biomass and coal-coke.
These also show the agglomeration of coal and coke chars with biomass char particles at high temperatures. The agglom...





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