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Permanent link (DOI): https://doi.org/10.7939/R3R661

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Techno-economic Assessment of Charcoal Production for Carbon Sequestration Open Access

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Other title
Subject/Keyword
renewable energy
carbon sequestration
global warming
charcoal
biochar
pyrolysis
straw
biomass
LCA
GHG
Greenhouse gas
Life cycle analysis
techno-economic
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Thakkar, Jignesh A
Supervisor and department
Kumar, Amit (Mechanical Engineering)
Examining committee member and department
Li, Yunwei (Electrical and Computer Engineering)
Ma, Yongsheng (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization
Engineering Management
Date accepted
2012-12-18T13:52:59Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
Greenhouse gas (GHG) emission is one of the important environmental issues that world is facing today. Biomass usage, specifically capturing energy from biomass that would otherwise decay, is one the of many options available to mitigate the impact of the buildup of GHG emissions from fossil fuel utilization. This research investigates the pathway of utilization of agricultural biomass (e.g. straw) for charcoal production and its landfilling for sequestration of carbon. This pathway can help in increasing the rate of carbon sequestration. Charcoal is a solid fuel, which can be produced from agricultural biomass such as wheat and barley straw. It is an organic solid and can be produced by slow pyrolysis of straw. This research involves a conceptual techno-economic study to estimate the cost of production of charcoal from straw in a centralized plant and its storage in a landfill to sequester carbon. This study draws on actual data to determine the cost of charcoal production. The cost of production of charcoal from straw in a centralized system with nutrient replacement cost and its landfilling cost is $332.2/tonne of charcoal. The life cycle GHG emission for this pathway is 0.372 tonne of CO2/tonne of charcoal produced. Based on the cost of production and landfilling of charcoal and the GHG emissions in this pathway, the cost of carbon sequestration is about $129.88/tonne of CO2. This is higher than the biomass based electricity generation pathway but lower than some estimates of carbon capture and storage technologies for carbon sequestration.
Language
English
DOI
doi:10.7939/R3R661
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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