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首页> 外文期刊>Energy >Tetra-n-butyl ammonium bromide semi-clathrate hydrate process for post-combustion capture of carbon dioxide in the presence of dodecyl trimethyl ammonium chloride
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Tetra-n-butyl ammonium bromide semi-clathrate hydrate process for post-combustion capture of carbon dioxide in the presence of dodecyl trimethyl ammonium chloride

机译：在正十二烷基三甲基氯化铵存在下燃烧后捕集二氧化碳的四正丁基溴化铵半包合物水合物工艺

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摘要

To determine the appropriate operating conditions for separating carbon dioxide from flue gas via the hydrate formation, the effects of the concentrations of dodecyl trimethyl ammonium chloride (DTAC) in 0.29 mol% Tetra-n-butyl ammonium bromide (TBAB) aqueous solution and the initial pressures on the induction time of the hydrate formation and CO_2 separation efficiency are investigated. The experiments are conducted at the DTAC concentration range of 0-0.056 mol%, initial pressures range of 0.66 MPa-2.66 MPa and temperature range of 274.95 K-277.15 K. The results indicate that the initial pressure of 1.66 MPa in conjunction with the concentration of 0.028 mol% DTAC is most favorable for CO_2 separation. At the condition, the induction time of forming the hydrate can be shortened considerably and CO_2 can be purified from 17.0 mol% to 99.4% with the two-stage hydrate separation process. CO_2 split fractions for Stage 1 and Stage 2 are 0.54 and 0.39, respectively, and the separation factors are 9.60 and 62.25, respectively.
机译：为了确定通过水合物形成从烟气中分离二氧化碳的合适操作条件，需考察0.29 mol％四正丁基溴化铵（TBAB）水溶液中十二烷基三甲基氯化铵（DTAC）的浓度和初始浓度的影响。研究了水合物形成诱导时间的压力和CO_2的分离效率。实验在DTAC浓度范围为0-0.056 mol％，初始压力范围为0.66 MPa-2.66 MPa和温度范围为274.95 K-277.15 K的情况下进行。结果表明，初始压力为1.66 MPa且浓度0.028 mol％的DTAC最有利于CO_2的分离。在此条件下，通过两步水合物分离工艺，可以大大缩短水合物的诱导时间，可以将CO_2从17.0mol％纯化至99.4％。第1阶段和第2阶段的CO_2分离分数分别为0.54和0.39，分离因子分别为9.60和62.25。

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  • 来源
    《Energy》 |2010年第9期|p.3902-3908|共7页
  • 作者

    Xiao-Sen Li; Chun-Gang Xu; Zhao-Yang Chen; Hui-Jie Wu;

  • 作者单位

    Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China,Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, PR China;

    rnKey Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China,Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, PR China,Graduate University of Chinese Academy of Sciences, Beijing 100083, PR China;

    rnKey Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China,Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, PR China;

    rnKey Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China,Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, PR China;

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  • 正文语种 eng
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  • 关键词

    CO_2 hydrate; flue gas; TBAB; DTAC; semi-clathrate hydrate;

    机译：CO_2水合物;烟气TBAB;DTAC;半水合物;

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