| DOI: | 10.2172/1052998
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| 报告号: | None
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| 报告题名: | Metal Monolithic Amine-grafted Zeolite for CO{sub 2} Capture |
| 作者: | Karasaki, Kenzi [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)]; Doughty, Christine [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)]; Gasperikova, Erika [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (Un
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| 出版年: | 2011
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| 发表日期: | 2011-03-31
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 高温
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| 主题词: | HEAT
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| 英文摘要: | The solid amine sorbent for CO{sub 2} capture process has advantages of simplicity and low operating cost compared to the MEA (monoethanolamine) process. Solid amine sorbents reported so far suffered from either low CO{sub 2} capture capacity or low stability. The solid amine sorbent developed in this project exhibited more than 3.2 mmol/g and degraded less than 10% even after 500 cycles of heating and cooling in absence of steam. The presence of steam further enhanced CO{sub 2} capture capacity. The cost of the sorbent is estimated to be less than $7.00/lb. This sorbent was developed using the results of in situ infrared spectroscopic study. Infrared results showed that CO{sub 2} adsorbs on TEPA (tetraethylenepentamine)/PEG (polyethylene glycol) as carbamates and bicarbonates. The CO{sub 2} adsorption capacity and oxidation resistance of the amine sorbent can be enhanced by the interactions between NH{sub 2} of TEPA molecules with the OH group of PEG molecules. PEG was also found to be effectively disperse and immobilize the aromatic amines for SO{sub 2} adsorption. The infrared study also showed that SiO{sub 2} is a significantly better support than zeolites due to its proper hydrophobicity. The results of this study led to the development of a high performance solid amine sorbent under simulated gas flow condition in a fixed bed, a fluidized bed, and a metal monolith unit. This study showed heat transfer could become a major technical issue in scaling up a fixed bed adsorber. The use of the fluidized bed and metal monoliths can alleviate the heat transfer issue. The metal monolith could be suitable for small scale applications due to the high cost of manufacturing; the fluidized bed mode would be most suitable for large scale applications. Preliminary economic analysis suggested that the Akron solid amine process would cost 45% less than that of MEA process. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1052998
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/40274
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1052998.pdf（3383KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Karasaki, Kenzi [Lawrence Berkeley National Lab. ,Doughty, Christine [Lawrence Berkeley National Lab. ,Gasperikova, Erika [Lawrence Berkeley National Lab. . Metal Monolithic Amine-grafted Zeolite for CO{sub 2} Capture. 2011-01-01.
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