在钙循环工艺中使用 Ca(OH)2 使碳捕获率达到 99% 的概念评估

IF 4.6 3区 工程技术 Q2 ENERGY & FUELS
Markus Secomandi , Markku Nikku , Borja Arias , Jouni Ritvanen
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引用次数: 0

摘要

钙循环(CaL)通常能够减少约 90% 的二氧化碳排放,是一种非常适合捕集各种工业流程中二氧化碳排放的技术。本研究使用一个半维反应器模型,对向碳化器注入 Ca(OH)2 以将 CaL 工艺的碳捕集效率提高到 99% 的方法进行了评估。研究考虑了几个关键参数的影响,包括注入流速、注入高度以及由于煅烧炉洗脱出的炭粒燃烧而在碳化器自由板中形成的二氧化碳的速率。主要发现是,只要注入足够多的 Ca(OH)2,并在合适的位置注入,即吸附剂在反应器中有足够的停留时间,捕集率似乎可以达到 99%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A conceptual evaluation of the use of Ca(OH)2 for attaining carbon capture rates of 99% in the calcium looping process
Calcium looping (CaL), typically capable of reducing CO2 emissions by approximately 90%, is a technology well suited to capturing CO2 emissions from a wide array of industrial processes. An approach in which Ca(OH)2 is injected into the carbonator to increase the carbon capture efficiency of the CaL process to 99% was evaluated in this study using a one-and-a-half-dimensional reactor model. The effect of several key parameters was considered, including the injection flow rate, injection elevation, and the formation rate of CO2 in the freeboard of the carbonator due to the combustion of char particles elutriated from the calciner. The main finding was that capture rates of 99% appear attainable, given that enough Ca(OH)2 is injected and that the injection occurs at a suitable location, i.e., the sorbent is allowed sufficient residence time in the reactor.
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来源期刊
CiteScore
9.20
自引率
10.30%
发文量
199
审稿时长
4.8 months
期刊介绍: The International Journal of Greenhouse Gas Control is a peer reviewed journal focusing on scientific and engineering developments in greenhouse gas control through capture and storage at large stationary emitters in the power sector and in other major resource, manufacturing and production industries. The Journal covers all greenhouse gas emissions within the power and industrial sectors, and comprises both technical and non-technical related literature in one volume. Original research, review and comments papers are included.
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