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Effect of surfactants on mass transfer in a bubble column equipped with a horizontal tube bundles
International Communications in Heat and Mass Transfer ( IF 7 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.icheatmasstransfer.2020.104548
S.S. Al-Shahrani , S.A. Nosier , A.H. El-Shazly , M.H. Abdel-Aziz

Abstract The influence of sodium lauryl sulfate (anionic surfactant) on the solid- liquid mass transfer coefficient in a gas sparging system prepared with a tube bundles is considered. Diffusion - controlled dissolution approach of copper in acidified dichromate solution was employed. Parameters examined are the concentration of surfactant, superficial gas velocity and the number of actively exposed tube bundles (ranging from 1–5). The presence of surfactant decreased the mass transfer coefficient by an extent ranges from 13 to 46% contingent on the concentration of surfactant. The governing parameters are interrelated by a dimensionless correlation and an approach was suggested to use it in design, scale up and predicting the performance of the gas sparged tube bundle under various conditions. The benefits and shortcomings of using surfactants in bubble columns are discussed in terms of energy conservation and reduction in mass transfer, respectively.

中文翻译:

表面活性剂对水平管束鼓泡塔传质的影响

摘要 考虑了月桂基硫酸钠(阴离子表面活性剂)对管束式气体喷射系统中固-液传质系数的影响。采用了铜在酸化重铬酸盐溶液中的扩散控制溶解方法。检查的参数是表面活性剂的浓度、表观气体速度和主动暴露的管束数量(范围为 1-5)。表面活性剂的存在使传质系数降低了 13% 到 46% 的范围,这取决于表面活性剂的浓度。控制参数通过无量纲相关性相互关联,并且建议将其用于设计、放大和预测各种条件下气体喷射管束的性能。
更新日期:2020-04-01
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