Experimental Investigations of Foaming in a Packed Tower for Sour Water Stripping

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• 作者：Robin Thiele ; Ole Brettschneider ; Jens-Uwe Repke ; Holger Thielert ; and Gü ; nter Wozny
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2003
• 出版时间：April 2, 2003
• 年：2003
• 卷：42
• 期：7
• 页码：1426 - 1432
• 全文大小：309K
• 年卷期：v.42,no.7(April 2, 2003)
• ISSN：1520-5045

文摘

A foaming problem in an industrial-size deacidifier (packed column) within the ammonia-hydrogen sulfide circulation scrubbing process (AS process) on a specific site is experimentallyinvestigated. The foamability of solutions is successfully assessed in a small test cell, and theBikermann coefficient is calculated to characterize the foaminess behavior. The investigationsrevealed that filtration of the real sour water taken from the specific site does not alter foamingcharacteristics. Impurities, especially phenol and its derivatives, cresols, are found to highlycontribute to foaminess behavior. Experiments in a pilot plant revealed higher pressure dropand lower flood point data. Critical spots of foam formation are identified, and design suggestionsfor column internals are given.