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Integrated CO2 capture and utilization with CaO-alone for high purity syngas production

Shuzhuang Sun, Zongze Lv, Yuanting Qiao Orcid Logo, Changlei Qin Orcid Logo, Shaojun Xu Orcid Logo, Chunfei Wu Orcid Logo

Carbon Capture Science & Technology, Volume: 1, Start page: 100001

Swansea University Author: Yuanting Qiao Orcid Logo

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DOI (Published version): 10.1016/j.ccst.2021.100001

Abstract

Carbon capture and utilization (CCU) represent a promising strategy to reduce CO2 emissions and promote a sustainable economy. We report an integrated CCU (ICCU) process by integrating CO2 capture with reverse water gas shift reaction by applying simple and low-cost CaO as both sorbent and catalyst....

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Published in: Carbon Capture Science & Technology
ISSN: 2772-6568
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa67100
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Abstract: Carbon capture and utilization (CCU) represent a promising strategy to reduce CO2 emissions and promote a sustainable economy. We report an integrated CCU (ICCU) process by integrating CO2 capture with reverse water gas shift reaction by applying simple and low-cost CaO as both sorbent and catalyst. By switching the feeding gas from CO2 source to H2 isothermally, up to 75% of captured CO2 was 100% converted into CO at 600-700 °C and the cycle performance of CaO was significantly improved under ICCU condition. In addition, the simulation confirms the significant economic advantage compared to similar traditional processes. The work could dramatically reduce the cost of materials and simplify CCU processes to advance the development and deployment of carbon neutrality technologies.One-Sentence Summary: A low-cost and widely used material, CaO, was used to not only adsorb CO2 efficiently but also in situ convert CO2 into valuable syngas with > 75% CO2 conversion to realise carbon neutrality, which is a vital target for sustainable future development.
College: Faculty of Science and Engineering
Funders: China Scholarship Council grant 201906450023 Marie Skłodowska-Curie grant No 823745
Start Page: 100001

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