Memon, MZH, Zhao, X, Sikarwar, VS et al. (5 more authors) (2017) Alkali metal CO2 sorbents and the resulting metal carbonates: Potential for process intensification of Sorption-Enhanced Steam Reforming. Environmental Science & Technology, 51 (1). pp. 12-27. ISSN 0013-936X
Abstract
Sorption-enhanced steam reforming (SESR) is an energy and cost efficient approach to produce hydrogen with high purity. SESR makes it economically feasible to use a wide range of feedstocks for hydrogen production such as methane, ethanol, and biomass. Selection of catalysts and sorbents plays a vital role in SESR. This article reviews the recent research aimed at process intensification by the integration of catalysis and chemisorption functions into a single material. Alkali metal ceramic powders, including Li2ZrO3, Li4SiO4 and Na2ZrO3 display characteristics suitable for capturing CO2 at low concentrations (<15% CO2) and high temperatures (>500 °C), and thus are applicable to precombustion technologies such as SESR, as well as postcombustion capture of CO2 from flue gases. This paper reviews the progress made in improving the operational performance of alkali metal ceramics under conditions that simulate power plant and SESR operation, by adopting new methods of sorbent synthesis and doping with additional elements. The paper also discusses the role of carbonates formed after in situ CO2 chemisorption during a steam reforming process in respect of catalysts for tar cracking.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, American Chemical Society. This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in Environmental Science & Technology, copyright © American Chemical Society after peer review. To access the final edited and published work, see http://doi.org/10.1021/acs.est.6b04992. |
Dates: |
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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) |
Funding Information: | Funder Grant number EPSRC EP/J014702/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Feb 2017 10:27 |
Last Modified: | 08 Dec 2017 01:43 |
Published Version: | http://doi.org/10.1021/acs.est.6b04992 |
Status: | Published |
Publisher: | American Chemical Society |
Identification Number: | 10.1021/acs.est.6b04992 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:112482 |