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首页> 外文期刊>Environmental Science & Technology >Towards Commercial Scale Postcombustion Capture of CO_2 with Monoethanolamine Solvent: Key Considerations for Solvent Management and Environmental Impacts
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Towards Commercial Scale Postcombustion Capture of CO_2 with Monoethanolamine Solvent: Key Considerations for Solvent Management and Environmental Impacts

机译：迈向单乙醇胺溶剂商业化燃烧后捕获CO_2：溶剂管理和环境影响的关键考虑因素

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摘要

Chemical absorption with aqueous amine solvents is the most advanced technology for postcombustion capture (PCC) of CO_2 from coal-fired power stations and a number of pilot scale programs are evaluating novel solvents, optimizing energy efficiency, and validating engineering models. This review demonstrates that the development of commercial scale PCC also requires effective solvent management guidelines to ensure minimization of potential technical and environmental risks. Furthermore, the review reveals that while solvent degradation has been identified as a key source of solvent consumption in laboratory scale studies, it has not been validated at pilot scale. Yet this is crucial as solvent degradation products, such as organic acids, can increase corrosivity and reduce the CO_2 absorption capacity of the solvent. It also highlights the need for the development of corrosion and solvent reclamation technologies, as well as strategies to minimize emissions of solvent and degradation products, such as ammonia, aldehydes, nitrosamines and nitramines, to the atmosphere from commercial scale PCC. Inevitably, responsible management of aqueous and solid waste will require more serious consideration. This will ultimately require effective waste management practices validated at pilot scale to minimize the likelihood of adverse human and environmental impacts from commercial scale PCC.
机译：胺水溶液吸收化学物质是燃煤电厂CO_2燃烧后捕集（PCC）的最先进技术，许多中试规模的计划正在评估新型溶剂，优化能源效率并验证工程模型。这项审查表明，商业规模PCC的开发还需要有效的溶剂管理指南，以确保将潜在的技术和环境风险降至最低。此外，该评论表明，尽管在实验室规模的研究中已将溶剂降解确定为溶剂消耗的关键来源，但尚未在中试规模上对其进行验证。然而，这至关重要，因为溶剂降解产物（例如有机酸）会增加腐蚀性并降低溶剂对CO_2的吸收能力。它还强调了对腐蚀和溶剂回收技术的发展的需求，以及使商业规模PCC向大气排放的溶剂和降解产物（例如氨，醛，亚硝胺和硝胺）的排放量降至最低的策略。不可避免地，对含水和固体废物进行负责任的管理将需要更认真的考虑。最终，这将需要在试点规模上得到验证的有效废物管理实践，以最大程度地降低商业规模PCC对人类和环境造成不利影响的可能性。

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  • 来源
    《Environmental Science & Technology》 |2012年第7期|p.3643-3654|共12页
  • 作者

    Alicia J. Reynolds; T. Vincent Verheyen; Samuel B. Adeloju; Erik Meuleman; Paul Feron;

  • 作者单位

    School of Applied Sciences and Engineering, Monash University, Churchill Vic 3842 Australia;

    School of Applied Sciences and Engineering, Monash University, Churchill Vic 3842 Australia;

    School of Applied Sciences and Engineering, Monash University, Churchill Vic 3842 Australia;

    CSIRO Energy Techology-Advanced Coal Technology, Bayview Avenue, Clayton Vic 3168 Australia;

    CSIRO Energy Technology-Advanced Coal Technology, 10 Dwyer Circuit, Mayfield West, NSW 2304 Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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