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Article

Numerical Comparison of a Combined Hydrothermal Carbonization and Anaerobic Digestion System with Direct Combustion of Biomass for Power Production

1
School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
2
School of Sustainable Design Engineering, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
*
Author to whom correspondence should be addressed.
Processes 2020, 8(1), 43; https://doi.org/10.3390/pr8010043
Received: 13 November 2019 / Revised: 14 December 2019 / Accepted: 21 December 2019 / Published: 1 January 2020
(This article belongs to the Special Issue Anaerobic Digestion Processes)
Two of the methods for converting biomass to fuel are hydrothermal carbonization (HTC) and anaerobic digestion (AD). This study is aimed at designing and analyzing two scenarios for bioenergy production from undervalued biomass (sawdust). In one of the scenarios (direct combustion or DC), raw biomass is burned in a combustor to provide the heat that is required by the Rankine cycle to generate electricity. In the other scenario (HTC-AD), the raw biomass first undergoes HTC treatment. While the solid product (hydrochar) is used to produce power by a Rankine cycle, the liquid by-product undergoes an AD process. This results in fuel gas production and it can be used in a Brayton cycle to generate more power. Energy and mass balance analysis of both scenarios were developed for each unit process by using Engineering Equation Solver (EES). The required data were obtained experimentally or from the literature. The performances of the proposed systems were evaluated, and a sensitivity analysis was presented to help in finding the best operational conditions. View Full-Text
Keywords: hydrothermal carbonization; anaerobic digestion; bioenergy; direct combustion; power cycles; Engineering Equation Solver hydrothermal carbonization; anaerobic digestion; bioenergy; direct combustion; power cycles; Engineering Equation Solver
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MDPI and ACS Style

Heidari, M.; Salaudeen, S.; Norouzi, O.; Acharya, B.; Dutta, A. Numerical Comparison of a Combined Hydrothermal Carbonization and Anaerobic Digestion System with Direct Combustion of Biomass for Power Production. Processes 2020, 8, 43. https://doi.org/10.3390/pr8010043

AMA Style

Heidari M, Salaudeen S, Norouzi O, Acharya B, Dutta A. Numerical Comparison of a Combined Hydrothermal Carbonization and Anaerobic Digestion System with Direct Combustion of Biomass for Power Production. Processes. 2020; 8(1):43. https://doi.org/10.3390/pr8010043

Chicago/Turabian Style

Heidari, Mohammad, Shakirudeen Salaudeen, Omid Norouzi, Bishnu Acharya, and Animesh Dutta. 2020. "Numerical Comparison of a Combined Hydrothermal Carbonization and Anaerobic Digestion System with Direct Combustion of Biomass for Power Production" Processes 8, no. 1: 43. https://doi.org/10.3390/pr8010043

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