Simultaneous absorption of hydrophilic and hydrophobic VOCs in a novel Higee-scrubber

HWAI,, -SHEN LIU and PEI-, SHENG TANG (2014) Simultaneous absorption of hydrophilic and hydrophobic VOCs in a novel Higee-scrubber. In: International Conference on Advances in Bio-Informatics, Bio-Technology and Environmental Engineering - ABBE 2014, 01 - 02 June,2014, Westminster, London, UK.

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A Higee-scrubber, in the form of a rotating packed bed, has shown dramatic improvement in its absorption performance as compared with a conventional scrubber. But the absorption is often limited to hydrophilic volatile organic compounds (VOCs) with water-based solvents, simply because hydrophobic VOCs are relatively insoluble in the aqueous system. In this report, we experimentally demonstrated that this novel Higee-scrubber could handle dual-solvent (e.g. water/silicone oil) properly due to its centrifugal force. Consequently, simultaneous removal of both hydrophobic VOC (e.g. toluene) and hydrophilic VOC (e.g. isopropanol) was efficiently accomplished in a single unit. This Higee-scrubber showed not only the superior absorption performance but also the capability of handling solvents of significant viscosity difference and immiscibility, thus, drastically expanding its applicability.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Higee-scrubber, rotating packed bed, dual-solvent absorption, hydrophobic and hydrophilic VOCs
Depositing User: Mr. John Steve
Date Deposited: 15 May 2019 12:35
Last Modified: 15 May 2019 12:35

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