Effects of multiwalled carbon nanotubes on CH4 hydrate in the presence of tetra-n-butyl ammonium bromide

doi:10.1039/c8ra01124a

	Effects of multiwalled carbon nanotubes on CH4 hydrate in the presence of tetra-n-butyl ammonium bromide
	Li, Dong-Liang 1,3,4,5; Sheng, Shu-Mei 1,3,4,5,6; Zhang, Ye 1,3,4,5,6; Liang, De-Qing 1,3,4,5; Wu, Xiao-Ping 2
刊名	RSC ADVANCES
	2018
卷号	8 期号:18 页码:10089-10096
ISSN号	2046-2069
DOI	10.1039/c8ra01124a
通讯作者	Liang, De-Qing(liangdq@ms.giec.ac.cn)
英文摘要	Hydrate formation is an important technology for gas storage and transportation. In this work, the effect of multiwalled carbon nanotubes (MWCNTs) on CH4 hydrate formation was examined by determining the phase equilibrium conditions and kinetics characteristics of a mixed system of CH4, tetra-n-butyl ammonium bromide (TBAB), and MWCNTs. The phase equilibrium was examined in the temperature range of 286.13-293.04 K and the pressure range of 0.55-6.56 MPa for various mass fractions of MWCNTs (0.004, 0.1, 0.5, and 1.0 wt%). In the CH4 + TBAB system, the presence of MWCNTs was found to shift the phase equilibrium conditions to a lower temperature by about 1 K compared with those in the absence of MWCNTs. However, the concentration of MWCNTs had little effect on the phase equilibrium conditions. When the concentration of MWCNTs was 1.0 wt%, the addition of MWCNTs reduced the induction time of hydrate formation by 79.5%. When the concentration of MWCNTs was 0.1 wt%, the addition of MWCNTs enhanced the hydrate growth rate by 61.5%. Powder X-ray diffraction patterns revealed that hydrates with orthorhombic structures (corresponding to TBAB center dot 38H(2)O with 3D cages) were formed in the systems with and without MWCNTs. Moreover, peaks corresponding to MWCNTs were not observed in the patterns of the hydrates and the addition of MWCNTs had no influence on the structure and type of hydrate. Thus, MWCNTs were not incorporated into the hydrate cages.
资助项目	National Natural Science Foundation of China[51474197] ; National Natural Science Foundation of China[51661165011] ; National Key Research and Development Plan of China[2016YFC0304002]
WOS关键词	PHASE-EQUILIBRIUM DATA ; METHANE HYDRATE ; CO2 HYDRATE ; AQUEOUS-SOLUTIONS ; GAS HYDRATE ; POROUS-MEDIA ; METHYLPYRROLIDINIUM BROMIDE ; GRAPHITE NANOPARTICLES ; DIOXIDE ; DISSOCIATION
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000430451800059
资助机构	National Natural Science Foundation of China ; National Key Research and Development Plan of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/23177]
专题	中国科学院广州能源研究所
通讯作者	Liang, De-Qing
作者单位	1.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 4.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 5.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 6.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Li, Dong-Liang,Sheng, Shu-Mei,Zhang, Ye,et al. Effects of multiwalled carbon nanotubes on CH4 hydrate in the presence of tetra-n-butyl ammonium bromide[J]. RSC ADVANCES,2018,8(18):10089-10096.
APA	Li, Dong-Liang,Sheng, Shu-Mei,Zhang, Ye,Liang, De-Qing,&Wu, Xiao-Ping.(2018).Effects of multiwalled carbon nanotubes on CH4 hydrate in the presence of tetra-n-butyl ammonium bromide.RSC ADVANCES,8(18),10089-10096.
MLA	Li, Dong-Liang,et al."Effects of multiwalled carbon nanotubes on CH4 hydrate in the presence of tetra-n-butyl ammonium bromide".RSC ADVANCES 8.18(2018):10089-10096.