Petroleum Science > 2018(2 ) :375-384 DOI:
Kinetics of (TBAF + CO2) semi-clathrate hydrate formation in the presence and absence of SDS Open Access
文章信息
作者：Semi-clathrate hydrate, Gas hydrate, Kinetics, CO2, SDS, TBAF
作者单位：A. Mohammadi, M. Pakzad, A. H. Mohammadi and A. JahangiriDepartment of Chemical Engineering, University of Bojnord, Bojnord, Iran,Department of Chemical Engineering, Omidiyeh Branch, Islamic Azad University, Omidiyeh, Iran,Institut de Recherche en Ge′nie Chimique et Pe′trolier (IRGCP), Paris Cedex, France; Thermodynamics Research Unit, School of Engineering, University of KwaZulu-Natal, Howard College Campus, King George V Avenue, Durban 4041, South Africa and Faculty of Engineering, Shahrekord University, Shahrekord, Iran
收稿日期：
出版日期：2017-08-03 00:00:00.0
引用方式：
文章摘要
In this communication, the impacts of adding SDS (sodium dodecyl sulfate), TBAF (tetra-n-butylammonium fluoride) and the mixture of SDS + TBAF on the main kinetic parameters of CO2 hydrate formation (induction time, the quantity and rate of gas uptake, and storage capacity) were investigated. The tests were performed under stirring conditions at T = 5 ℃ and P = 3.8 MPa in a 169 cm3 batch reactor. The results show that adding SDS with a concentration of 400 ppm, TBAF with a concentration of 1–5 wt%, and the mixture of SDS + TBAF, would increase the storage capacity of CO2 hydrate and the quantity of gas uptake, and decrease the induction time of hydrate formation process. The addition of 5 wt% of TBAF and 400 ppm of SDS would increase the CO2 hydrate storage capacity by 86.1% and 81.6%, respectively, compared to pure water. Investigation of the impact of SDS, TBAF and their mixture on the rate of gas uptake indicates that the mixture of SDS + TBAF does not have a significant effect on the rate of gas uptake during hydrate formation process.
英文关键词
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Semi-clathrate hydrate, Gas hydrate, Kinetics, CO2, SDS, TBAF