Evaluation of solid sorbents as a retrofit technology for CO2 capture
Evaluation of solid sorbents as a retrofit technology for CO2 capture
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DOI：
10.1016/j.fuel.2009.11.019
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发表时间：
2010-06
期刊：
影响因子：
7.4
通讯作者：
S. Sjostrom;H. Krutka
中科院分区：
文献类型：
--
作者：
S. Sjostrom;H. Krutka
基于固体吸附剂的工艺目前正在考虑用于燃烧后CO2捕集。在实验室规模上研究了24种不同的吸附剂材料在循环变温吸附/再生过程中对模拟燃煤烟气中CO2的捕集。这些材料中的10种与基准含水单乙醇胺相比表现出显著较低的理论再生能量，支持基于固体的CO2捕集过程可以提供优于基于溶剂的过程的成本效益的假设。最佳性能的材料进行了测试，实际燃煤烟气。负载胺表现出最高的工作CO2容量，虽然他们可以成为中毒的存在下的SO2。碳基材料显示出优异的稳定性，但通常被归类为具有低CO2容量。沸石在干燥条件下表现良好，但很快就会因水分的存在而中毒。虽然没有一种材料是没有问题的，但测试的几种材料的理论再生能量明显低于行业基准，从而阻碍了进一步的开发研究。
Processes based upon solid sorbents are currently under consideration for post-combustion CO2capture. Twenty-four different sorbent materials were examined on a laboratory scale in a cyclic temperature swing adsorption/regeneration CO2capture process in simulated coal combustion flue gas. Ten of these materials exhibited significantly lower theoretical regeneration energies compared to the benchmark aqueous monoethanolamine, supporting the hypothesis that CO2capture processes based upon solids may provide cost benefits over solvent-based processes. The best performing materials were tested on actual coal-fired flue gas. The supported amines exhibited the highest working CO2capacities, although they can become poisoned by the presence of SO2. The carbon-based materials showed excellent stability but were generally categorized as having low CO2capacities. The zeolites worked well under dry conditions, but were quickly poisoned by the presence of moisture. Although no one type of material is without concerns, several of the materials tested have theoretical regeneration energies significantly lower than that of the industry benchmark, warranting further development research.