Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/126824
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Type: Journal article
Title: High quality syngas production with supercritical biomass gasification integrated with a water–gas shift reactor
Author: Sarafraz, M.M.
Safaei, M.R.
Jafarian, M.
Goodarzi, M.
Arjomandi, M.
Citation: Energies, 2019; 12(13):2591-1-2591-14
Publisher: MDPI
Issue Date: 2019
ISSN: 1996-1073
1996-1073
Statement of
Responsibility: 
M.M. Sarafraz, Mohammad Reza Safaei, M. Jafarian, Marjan Goodarzi, and M. Arjomandi
Abstract: A thermodynamic assessment is conducted for a new configuration of a supercritical water gasification plant with a water–gas shift reactor. The proposed configuration offers the potential for the production of syngas at different H₂:CO ratios for various applications such as the Fischer–Tropsch process or fuel cells, and it is a path for addressing the common challenges associated with conventional gasification plants such as nitrogen dilution and ash separation. The proposed concept consists of two reactors, R₁ and R₂, where the carbon containing fuel is gasified (in reactor R₁) and in reactor R₂, the quality of the syngas (H₂:CO ratio) is substantially improved. Reactor R₁ is a supercritical water gasifier and reactor R₂ is a water–gas shift reactor. The proposed concept was modelled using the Gibbs minimization method with HSC chemistry software. Our results show that the supercritical water to fuel ratio (SCW/C) is a key parameter for determining the quality of syngas (molar ratio of H₂:CO) and the carbon conversion reaches 100%, when the SWC/C ratio ranges between two and 2.5 at 500–1000 °C.
Keywords: Supercritical water gasification; water–gas shift reactor; biomass gasification; syngas quality
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
RMID: 0030121713
DOI: 10.3390/en12132591
Appears in Collections:Mechanical Engineering publications

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