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Energy Densification of Lignocellulosic Biomass via Hydrothermal Carbonization and Torrefaction

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Title: Energy Densification of Lignocellulosic Biomass via Hydrothermal Carbonization and Torrefaction
Author: Kambo, Harpreet Singh
Department: School of Engineering
Program: Engineering
Advisor: Animesh, Dutta
Abstract: The work presented in this study demonstrated the potential of hydrothermal carbonization (HTC) of biomass for the production of carbon-rich solid fuel, known as hydrochar that has significantly improved combustion characteristics. In comparison, the physicochemical properties of the solid produced via torrefaction (a conventional thermal pre-treatment) were considerably lower than the hydrochar samples, even if the reaction time was kept much higher than HTC. Both raw and pre-treated biomass samples were further examined for densification characterization. The HTC pellets showed significantly improved durability, mass and energy density, and hydrophobicity compared to raw and torrefied pellets. The result shows that HTC narrows the differences in fuel qualities and has potential to replace coal in existing coal-fired power plants without any significant modifications. The HTC process water contains high-quality intermediate compounds that can offer a broad range of benefits and can improve the system’s overall efficiency via recirculation.
URI: http://hdl.handle.net/10214/8304
Date: 2014-08
Rights: Attribution-NonCommercial-NoDerivs 2.5 Canada


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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada