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首页> 外文期刊>Environmental Science & Technology >Carbon Capture and Sequestration: An Exploratory Inhalation Toxicity Assessment of Amine-Trapping Solvents and Their Degradation Products
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Carbon Capture and Sequestration: An Exploratory Inhalation Toxicity Assessment of Amine-Trapping Solvents and Their Degradation Products

机译：碳捕集与封存：胺类捕集溶剂及其降解产物的探索性吸入毒性评估。

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摘要

Carbon dioxide (CO_2) absorption with aqueous amine solvents is a method of carbon capture and sequestration (CCS) from flue gases. One concern is the possible release of amine solvents and degradation products into the atmosphere, warranting evaluation of potential pulmonary effects from inhalation. The CCS amines monoethanol-amine (MEA), methyldiethanolamine (MDEA), and piperazine (PIP) underwent oxidative and CO_2-mediated degradation for 75 days. C57bl/ 6N mice were exposed for 7 days by inhalation of 25 ppm neat amine or equivalant concentration in the degraded mixture. The aqueous solutions were nebulized to create the inhalation atmospheres. Pulmonary response was measured by changes in inflammatory cells in bronchoalveolar lavage fluid and cytokine expression in lung tissue. Ames mutagenicity and CHO-K1 micronucleus assays were applied to assess genotoxicity. Chemical analysis or the test atmosphere and liquid revealed complex mixtures, including acids, aldehydes, and other compounds. Exposure to ondatively degraded MEA increased (p ＜ 0.05) total cells, neutrophils, and lymphocytes compared to control mice and caused inflammatory cytokine expression (statistical increase at p ＜ 0.05). MEA and CO_2-degraded MEA were the only atmospheres to show statistical (p ＜ 0.05) increase in oxidative stress. CO_2 degradation resulted in a different composition, less degradation, and lower observed toxicity (less magnitude and number of effects) with no genotoxicity. Overall, oxidative degradation of the amines studied resulted in enhanced toxicity (increased magnitude and number of effects) compared tn the neat chemicals.
机译：用胺水溶液吸收二氧化碳（CO_2）是一种从烟气中捕集和封存碳（CCS）的方法。一个问题是胺溶剂和降解产物可能释放到大气中，因此有必要评估吸入可能对肺造成的影响。 CCS胺单乙醇胺（MEA），甲基二乙醇胺（MDEA）和哌嗪（PIP）经历了氧化和CO_2介导的降解75天。通过吸入25 ppm纯胺或降解混合物中的当量浓度，将C57bl / 6N小鼠暴露7天。将水溶液雾化以产生吸入气氛。通过支气管肺泡灌洗液中炎性细胞的变化和肺组织中细胞因子的表达来测量肺反应。 Ames致突变性和CHO-K1微核试验用于评估遗传毒性。化学分析或测试气氛和液体显示出复杂的混合物，包括酸，醛和其他化合物。与对照小鼠相比，暴露于常规降解的MEA的总细胞，中性粒细胞和淋巴细胞增加（p ＜0.05），并引起炎症性细胞因子的表达（p ＜0.05时统计增加）。 MEA和CO_2降解的MEA是唯一显示氧化应激具有统计性​​（p ＜0.05）增加的气氛。 CO_2降解导致组成不同，降解更少，观察到的毒性更低（影响的程度和数量更少），而没有遗传毒性。总体而言，与纯化学品相比，所研究胺类的氧化降解导致毒性增强（作用强度和作用数量增加）。

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  • 来源
    《Environmental Science & Technology》 |2014年第18期|10821-10828|共8页
  • 作者

    Jacob D. McDonald; Dean Kracko; Melanie Doyle-Eisele; C. Edwin Garner; Chris Wegerski; Al Senft; Eladio Knipping; Stephanie Shaw; Annette Rohr;

  • 作者单位

    Chemistry and Inhalation Exposure Program (CIEP), Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive Southeast, Albuquerque, New Mexico 87108, United States;

    Chemistry and Inhalation Exposure Program (CIEP), Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive Southeast, Albuquerque, New Mexico 87108, United States;

    Chemistry and Inhalation Exposure Program (CIEP), Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive Southeast, Albuquerque, New Mexico 87108, United States;

    Chemistry and Inhalation Exposure Program (CIEP), Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive Southeast, Albuquerque, New Mexico 87108, United States;

    Chemistry and Inhalation Exposure Program (CIEP), Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive Southeast, Albuquerque, New Mexico 87108, United States;

    Chemistry and Inhalation Exposure Program (CIEP), Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive Southeast, Albuquerque, New Mexico 87108, United States;

    Electric Power Research Institute (EPRI), 3420 Hillview Avenue, Palo Alto, California 94304, United States;

    Electric Power Research Institute (EPRI), 3420 Hillview Avenue, Palo Alto, California 94304, United States;

    Electric Power Research Institute (EPRI), 3420 Hillview Avenue, Palo Alto, California 94304, United States;

  • 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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