Kinetic study of methane hydrate formation in the presence of carbon nanostructures
投稿时间:2018-06-02  
英文关键词:Clathrate hydrate, Kinetics, Carbon nanostructures, Graphene oxide, SDS, PVP
基金项目:
作者单位
Saeid Abedi-Farizhendi Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
Department of Petroleum Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran 
Mina Iranshahi Department of Petroleum Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran 
Abolfazl Mohammadi Department of Chemical Engineering, University of Bojnord, Bojnord, Iran 
Mehrdad Manteghian Institut de Recherche en Génie Chimique et Pétrolier (IRGCP), Paris Cedex, France 
Amir H. Mohammadi Institut de Recherche en Génie Chimique et Pétrolier (IRGCP), Paris Cedex, France
Discipline of Chemical Engineering, School of Engineering, University of KwaZulu-Natal, Howard College Campus, King George V Avenue, Durban 4041, South Africa 
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英文摘要:
      The effect of synthesized nanostructures, including graphene oxide, chemically reduced graphene oxide with sodium dodecyl sulfate (SDS), chemically reduced graphene oxide with polyvinylpyrrolidone, and multi-walled carbon nanotubes, on the kinetics of methane hydrate formation was investigated in this work. The experiments were carried out at a pressure of 4.5 MPa and a temperature of 0 °C in a batch reactor. By adding nanostructures, the induction time decreases, and the shortest induction time appeares at certain concentrations of reduced graphene oxide with SDS and graphene oxide, that is, at a concentration of 360 ppm for reduced graphene oxide with SDS and 180 ppm for graphene oxide, with a 98% decrease in induction time compared to that in pure water. Moreover, utilization of carbon nanostructures increases the amount and the rate of methane consumed during the hydrate formation process. Utilization of multi-walled carbon nanotubes with a concentration of 90 ppm showes the highest amount of methane consumption. The amount of methane consumption increases by 173% in comparison with that in pure water. The addition of carbon nanostructures does not change the storage capacity of methane hydrate in the hydrate formation process, while the percentage of water conversion to hydrate in the presence of carbon nanotubes increases considerably, the greatest value of which occurres at a 90 ppm concentration of carbon nanotubes, that is, a 253% increase in the presence of carbon nanotubes compared to that of pure water.
Saeid Abedi-Farizhendi,Mina Iranshahi,Abolfazl Mohammadi,Mehrdad Manteghian,Amir H. Mohammadi,2019.Kinetic study of methane hydrate formation in the presence of carbon nanostructures.Petroleum Science,(3):657~668.
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