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首页> 外文会议>AWMA's (Air Waste Management Association) annual conference exhibition >Summary of Post-Combustion CO_2 Capture Technologies for Existing Coal-Fired Power Plants
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Summary of Post-Combustion CO_2 Capture Technologies for Existing Coal-Fired Power Plants

机译：现有燃煤电厂燃烧后CO_2捕集技术概述

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Due to mounting concern over climate change due to anthropogenic greenhouse gases, carbon dioxide emission legislation is being discussed and is expected to be passed in the near future. Utilities are relying on science to develop and improve CO-2 capture technologies that will allow them to reduce their emissions as well as continue to provide customers with affordable electricity. Cleaner coal fired power plants are being planned and built, but the nation's current operating power plants must be retrofit to have the greatest impact on emissions in the near future. Although few are proven on a commercial scale, there are several post-combustion capture technologies that have shown great promise.The most well-known capture technology is absorption by aqueous amines or ammonia. The solvents react with the CO_2, separating it from other flue gas constituents. The solution can be regenerated through heating. The carbon dioxide is released during this regeneration step and can be processed for sequestration. The major challenges to absorption technologies are the corrosive nature of the solutions, degradation from other pollutants and the energy required for regeneration. One ammonia-based technology is projected to be commercial by 2011. Solid sorbents are also a promising CO_2 capture technology, which may offer greater ease of handling. However, solid sorbents for CO_2 are still being developed that will meet the required CO_2 capacity, regeneration ability, selectivity and immunity to flue gas constituents. Another capture technology is membrane separation, which offers design simplicity. Membranes are currently being developed to improve their CO_2 selectivity. Solid sorbents and membranes are currently in laboratory and bench-scale development. In the end, it will require a range of solutions to achieve meaningful greenhouse gas reductions. This paper/presentation will provide the up to date status and results of several CO_2 capture technologies.
机译：由于人为温室气体引起的气候变化问题引起越来越多的关注，正在讨论二氧化碳排放立法，并有望在不久的将来获得通过。公用事业公司依靠科学来开发和改进CO-2捕集技术，这将使它们减少排放并继续为客户提供负担得起的电力。正在规划和建设更清洁的燃煤电厂，但该国目前的运行电厂必须进行改造，以在不久的将来对排放产生最大的影响。尽管很少有人在商业规模上证明过，但燃烧后捕集技术却显示出了巨大的希望。最著名的捕集技术是被胺或氨水吸收。溶剂与CO_2反应，将其与其他烟气成分分离。该溶液可以通过加热再生。二氧化碳在该再生步骤中释放出来，可以进行封存处理。吸收技术的主要挑战是溶液的腐蚀性，其他污染物的降解以及再生所需的能量。一项基于氨的技术预计将于2011年投入商业化。固体吸附剂也是一种很有前途的CO_2捕集技术，可能会更易于处理。然而，仍在开发用于CO_2的固体吸附剂，其将满足所需的CO_2容量，再生能力，选择性和对烟气成分的抵抗力。另一种捕获技术是膜分离，可简化设计。目前正在开发膜以提高其对CO_2的选择性。固体吸附剂和膜目前处于实验室和实验室规模的开发中。最后，它将需要一系列解决方案来实现有意义的温室气体减排。本文/演讲将提供几种CO_2捕集技术的最新状态和结果。

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