Pressure drops during the flow of solutions of cocamidopropyl betaine and cocamide DEA mixtures with the addition of ethylene glycol-Reference-Cited by-同舟云学术

Pressure drops during the flow of solutions of cocamidopropyl betaine and cocamide DEA mixtures with the addition of ethylene glycol

Published:2022-12-01 Issue:4 Volume:24 Page:67-71
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Sylwia Różańska¹,Jacek Różański¹,Patrycja Wagner¹,Ewelina Warmbier¹

Affiliation:

1. Poznan University of Technology , Institute of Chemical Technology and Engineering, Department of Chemical Engineering and Equipment , , Poznan , Poland

Abstract

Abstract The paper presents the results of experimental studies on pressure drops during the flow of cocamidopropyl betaine (CAPB) and DEA cocamide solutions with the addition of ethylene glycol. The degree of drag reduction during the flow of the CAPB/DEA aqueous solution and with the 10% addition of ethylene glycol was similar. A significant reduction in pressure drops was also observed at the 20% concentration of ethylene glycol. However, the increase in the concentration of ethylene glycol resulted in the reduction of flow resistance at higher temperatures. The resistance of the micellar microstructure of CAPB/DEA solutions to mechanical degradation depends strongly on the pH level. Significant changes in flow properties were observed when the initial pH was alkaline. The solution with initial pH close to neutral was stable over time, though reduced resistance to degradation with time was also observed.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

Link

https://www.sciendo.com/pdf/10.2478/pjct-2022-0030

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