Kinetic study of methane hydrate formation in the presence of carbon nanostructures

论文摘要

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 ℃ 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.

论文目录

• 1 Introduction
• 2 Experimental
•   2.1 Materials
•   2.2 Preparation and characterization of carbon structures
•   2.3 Fourier transform infrared spectroscopy（FT?IR）
•   2.4 Apparatus
•   2.5 Experiment method
• 3 Results and discussion
•   3.1 Induction time
•   3.2 Amount and rate of gas consumed in hydrate formation
•   3.3 Storage capacity and water to hydrate conversion percentage
• 4 Conclusion

文章来源

类型: 期刊论文

作者: Saeid Abedi-Farizhendi,Mina Iranshahi,Abolfazl Mohammadi,Mehrdad Manteghian,Amir H.Mohammadi

来源: Petroleum Science 2019年03期

年度: 2019

分类: 工程科技Ⅰ辑

专业: 有机化工

单位: Faculty of Chemical Engineering, Tarbiat Modares University,Department of Petroleum Engineering, South Tehran Branch, Islamic Azad University,Department of Chemical Engineering, University of Bojnord,Discipline of Chemical Engineering, School of Engineering, University of KwaZulu-Natal, Howard College Campus

分类号: TQ221.11

页码: 657-668

总页数: 12

文件大小: 3861K

下载量: 13