Kinetics of(TBAF+CO2)semi-clathrate hydrate formation in the presence and absence of SDS

作     者：A.Mohammadi M.Pakzad A.H.Mohammadi A.Jahangiri 

作者机构：Department of Chemical EngineeringUniversity of BojnordBojnordIran Department of Chemical EngineeringOmidiyeh BranchIslamic Azad UniversityOmidiyehIran Institut de Recherche en Genie Chimique et Petrolier(IRGCP)Paris CedexFrance Thermodynamics Research UnitSchool of EngineeringUniversity of KwaZulu-NatalHoward College CampusKing George V AvenueDurban 4041South Africa Faculty of EngineeringShahrekord UniversityShahrekordIran 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2018年第15卷第2期

页      面：375-384页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financial support from the Iran National Science Foundation 

主　　题：Semi-clathrate hydrate Gas hydrate Kinetics CO2 SDS TBAF 

摘      要：In this communication, the impacts of adding SDS （sodium dodecyl sulfate）, TBAF （tetra-n-butylammonlum tluorloe） ano 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 l-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.