Technological Options for Direct Air Capture: A Comparative Process Engineering Review.

IF 7.6 2区工程技术 Q1 CHEMISTRY, APPLIED

Annual review of chemical and biomolecular engineering Pub Date : 2022-04-01 DOI:10.1146/annurev-chembioeng-102121-065047

Xiaowei Wu, R. Krishnamoorti, Praveen Bollini

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引用次数: 14

Abstract

The direct capture of CO2 from ambient air presents a means of decelerating the growth of global atmospheric CO2 concentrations. Considerations relating to process engineering are the focus of this review and have received significantly less attention than those relating to the design of materials for direct air capture (DAC). We summarize minimum thermodynamic energy requirements, second law efficiencies, major unit operations and associated energy requirements, capital and operating expenses, and potential alternative process designs. We also highlight process designs applied toward more concentrated sources of CO2 that, if extended to lower concentrations, could help move DAC units closer to more economical continuous operation. Addressing shortcomings highlighted here could aid in the design of improved DAC processes that overcome trade-offs between capture performance and DAC cost. Expected final online publication date for the Annual Review of Chemical and Biomolecular Engineering, Volume 13 is October 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

查看原文本刊更多论文

直接空气捕获的技术选择：比较工艺工程综述。

从环境空气中直接捕获二氧化碳是减缓全球大气二氧化碳浓度增长的一种手段。与工艺工程相关的考虑因素是本次审查的重点，与直接空气捕获（DAC）材料设计相关的考虑事项相比，受到的关注要少得多。我们总结了最低热力学能量要求、第二定律效率、主要装置操作和相关能量要求、资本和运营费用以及潜在的替代工艺设计。我们还强调了适用于更浓缩的二氧化碳源的工艺设计，如果将其扩展到更低的浓度，可能有助于使DAC装置更接近更经济的连续操作。解决这里强调的缺点可以帮助设计改进的DAC过程，克服捕获性能和DAC成本之间的权衡。《化学与生物分子工程年刊》第13卷预计最终在线出版日期为2022年10月。请参阅http://www.annualreviews.org/page/journal/pubdates用于修订估算。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annual review of chemical and biomolecular engineering CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

16.00

自引率

0.00%

发文量

期刊介绍： The Annual Review of Chemical and Biomolecular Engineering aims to provide a perspective on the broad field of chemical (and related) engineering. The journal draws from disciplines as diverse as biology, physics, and engineering, with development of chemical products and processes as the unifying theme.