Shahid, MM, Abbas, SZ, Maqbool, F et al. (3 more authors) (2021) Modeling of sorption enhanced steam methane reforming in an adiabatic packed bed reactor using various CO₂ sorbents. Journal of Environmental Chemical Engineering, 9 (5). 105863. ISSN 2213-3437
Abstract
A 1-D heterogeneous model of sorption-enhanced steam methane reforming (SE-SMR) process in a packed bed reactor consisting of nickel catalyst well mixed with CO₂ sorbent particles is investigated for three types of common sorbents. The performance of SE-SMR process is studied under low medium pressure conditions (3 – 11 bar) to find the optimum operating conditions. Optimal CaO sorption corresponding to 82% CH₄ conversion and 85% H₂ purity is found at 900 K, 3 bar, 3.5 kgm⁻²s⁻¹ and S/C of 3.0. In contrast, lithium zirconate (LZC) and hydrotalcite (HTC) sorbents exhibited best sorptions under the operating conditions of 773 K, 5 bar and S/C of 3 with CH₄ conversion of 91.3% and 55.2%, and H₂ purity of 94.1% and 77.8% respectively. In these conditions, the CH₄ conversion increased by 114%, 111% and 67% compared to the conventional SMR for the processes enhanced by HTC, LZC and CaO sorption respectively.
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Copyright, Publisher and Additional Information: | © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | ||||
Keywords: | Sorption-enhanced steam methane reforming; Sorbent; CO₂ capture; Modeling; CH₄ conversion enhancement | ||||
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Institution: | The University of Leeds | ||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) | ||||
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Depositing User: | Symplectic Publications | ||||
Date Deposited: | 14 Jun 2021 15:44 | ||||
Last Modified: | 14 Mar 2023 20:16 | ||||
Status: | Published | ||||
Publisher: | Elsevier | ||||
Identification Number: | https://doi.org/10.1016/j.jece.2021.105863 | ||||
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