The CO2 Capture System with a Swing Temperature Moving Bed

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-01-05 DOI:10.2478/ama-2024-0012

Ewa Kozak-Jagieła, Monika Rerak, W. Zima, Artur Cebula, S. Grądziel, Giorgia Mondino, Richard Blom, L. Nord, Vidar T. Skjervold

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Abstract

Abstract The reduction in CO2 emissions is now a very popular topic. According to the International Energy Agency, CO2 emitted in 2021 was 6% more than that emitted in 2020. Carbon capture and storage (CCS) is gaining popularity as a possible solution to climate change. Experts estimate that industry and power plants will be responsible for 19% of total CO2 emissions by 2050. This paper presents the design of a semi-industrial-scale system for CO2 capture based on the moving bed temperature swing adsorption technology. According to the results of laboratory tests conducted by the SINTEF industry, this technology demonstrates high capture efficiency (>85%). The CO2 capture medium involved in adsorption is activated carbon passing through individual sections (cooling, heating, adsorption), where CO2 is bonded and then released. The heat and mass transfer processes are realised on the developed stand. The heat exchangers use steam and water as the heating/cooling medium. The paper reviews the existing solutions and describes the developed in-house design of heat exchangers that will ensure heat transfer conditions being a trade-off between economic and efficiency-related issues of the CO2 capture process. The designed test stand will be installed in a Polish power plant and is expected to meet the method energy intensity target, set at ≤ 2.7 MJ/kg CO2, with a capture efficiency exceeding 85%. The aim of the work was to develop and solve technical problems that would lead to the construction of a CO2 capture station with parameters mentioned above. This stand uses an innovative method where CO2 is captured by contacting the fluid (gases) with solid particles. The heat exchange associated with the heating and cooling of the adsorbent had to be solved. For this purpose, heat exchangers were designed with high thermal efficiency and to prevent the formation of mounds.

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带摇摆式温床的二氧化碳捕获系统

摘要减少二氧化碳排放是一个非常热门的话题。根据国际能源机构的数据，2021 年的二氧化碳排放量比 2020 年增加了 6%。碳捕集与封存（CCS）作为一种可能的气候变化解决方案，正日益受到人们的青睐。专家估计，到 2050 年，工业和发电厂的二氧化碳排放量将占总排放量的 19%。本文介绍了基于移动床变温吸附技术的半工业规模二氧化碳捕集系统的设计。根据 SINTEF 工业部门进行的实验室测试结果，该技术具有很高的捕集效率（>85%）。参与吸附的二氧化碳捕集介质是活性炭，它通过各个环节（冷却、加热、吸附）将二氧化碳粘合，然后释放出来。传热和传质过程在已开发的支架上实现。热交换器使用蒸汽和水作为加热/冷却介质。论文回顾了现有的解决方案，并介绍了内部开发的热交换器设计，该设计将确保热传导条件在二氧化碳捕集过程的经济性和效率相关问题之间进行权衡。所设计的试验台将安装在波兰的一家发电厂，预计将达到该方法的能源强度目标，即≤ 2.7 兆焦耳/千克二氧化碳，捕集效率超过 85%。这项工作的目的是开发和解决技术问题，从而建造一个具有上述参数的二氧化碳捕集站。该站台采用一种创新方法，通过流体（气体）与固体颗粒接触来捕获二氧化碳。必须解决与吸附剂的加热和冷却相关的热交换问题。为此，设计了热效率较高的热交换器，以防止形成小丘。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.