Nucleation of methane hydrate and ice in emulsions of water in crude oils and decane under non-isothermal conditions

作     者：Andrey S. Stoporev Lidiya I. Svarovskaya Larisa A. Strelets Lubov’ K. Altunina Galina V. Villevald Tamara D. Karpova Tatyana V. Rodionova Andrey Yu. Manakov 

作者机构：Nikolaev Institute of Inorganic Chemistry SB RAS Novosibirsk State University Institute of Petroleum Chemistry 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2019年第27卷第3期

页      面：668-676页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the Federal Agency for Scientific Organizations for funding 

主　　题：Methane hydrate Crude oil Oil dispersive system Nucleation 

摘      要：Achievable supercooling for the formation of methane hydrate from water emulsions was studied in seven different crude oils and in decane. The experiments were performed under constant rate cooling from + 20 to-15 °C and a pressure of methane of 12 MPa. It was demonstrated that the shapes and positions of the resulting survival curves depend on the density, viscosity and dispersive power of oil samples used in the experiments, as well as on the degree of oil oxidation. In addition, results of the experiments on ice freezing under the same emulsions are presented. The results obtained in the work allowed us to discuss the possibility and features of primary and secondary nucleation of the hydrate and ice in the systems under consideration.