元慧力,钟雯诗,郑淑娟,姜伟,胡庚申

• 1:浙江师范大学先进催化剂材料教育部重点实验室

摘要(Abstract)：

为了解决粉末状固体吸附剂成本高、传质阻力大的缺点，以棉花碳化制得的碳纤维作为吸附剂载体，通过浸渍法负载五乙烯六胺(PEHA)制备了固体有机胺吸附剂。通过扫描电镜、物理吸附、红外、热重分析等对吸附剂进行表征，采用穿透曲线法对吸附剂的CO_2吸附性能进行测试。结果表明，在500℃碳化得到的碳纤维C500具有最大的比表面积(471 m~2·g~(-1))。50PEHA/C500吸附剂在75℃时吸附量可达到4.05 mmol·g~(-1),CO_2吸附性能优异。对比粉末吸附剂，碳纤维之间具有更大的空隙，放大实验表明，50PEHA/C500比介孔氧化硅基吸附剂(50PEHA/SBA-15)具有更小的传质阻力。循环测试结果表明50PEHA/C500吸附剂具有优秀的再生性能。50PEHA/C500基吸附剂具有低成本、低传质阻力和优异的CO_2捕获能力，展现出良好的应用前景。

关键词(KeyWords)： 碳捕集;碳纤维;传质阻力;五乙烯六胺(PEHA)

Abstract:

Keywords:

基金项目(Foundation): 浙江省自然科学基金(LY21G010005);; 国家自然科学基金(21203167)

作者(Author): 元慧力,钟雯诗,郑淑娟,姜伟,胡庚申

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