微细固体颗粒对CO2吸收速率的影响Effect of Fine Solid Particles on Gas Absorption Rate of CO2
卢素敏,马友光,沈树华,朱春英
摘要(Abstract)：
利用恒温反应器研究了颗粒性质对CO_2在浆液中吸收的影响。实验选用三种溶剂:水、环己烷和大豆油,在其中分别加入不同性质的固体颗粒:活性炭、活性氧化铝和硅胶作为研究体系。结果发现,水溶液中只有活性炭表现出了明显的吸收强化效果;而在环己烷溶液中则相反,活性炭失去了强化作用,Al2O3和硅胶却对吸收起到了促进效果。由此说明能够具有吸收强化效果的颗粒需要具有两方面的性质:憎溶剂性及对溶质较高的吸附容量。同时,根据实验结果,增强因子随颗粒浓度的增加会渐进地趋于一个恒定值;搅拌速度提高强化因子会随之降低。表明强化因子与颗粒在气液界面的覆盖率有关,搅拌速度提高界面覆盖率下降。
关键词(KeyWords)： 吸收强化;强化因子;表面覆盖率;吸附容量
基金项目(Foundation): 国家自然科学基金(20176036)
作者(Author): 卢素敏,马友光,沈树华,朱春英
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