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Effects of multiwalled carbon nanotubes on CH4 hydrate in the presence of tetra-n-butyl ammonium bromide
Li, Dong-Liang1,2,3,4; Sheng, Shu-Mei1,2,3,4,5; Zhang, Ye1,2,3,4,5; Liang, De-Qing1,2,3,4; Wu, Xiao-Ping6
2018
发表期刊RSC ADVANCES
ISSN2046-2069
卷号8期号:18页码:10089-10096
通讯作者Liang, De-Qing(liangdq@ms.giec.ac.cn)
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.
DOI10.1039/c8ra01124a
关键词[WOS]PHASE-EQUILIBRIUM DATA ; METHANE HYDRATE ; CO2 HYDRATE ; AQUEOUS-SOLUTIONS ; GAS HYDRATE ; POROUS-MEDIA ; METHYLPYRROLIDINIUM BROMIDE ; GRAPHITE NANOPARTICLES ; DIOXIDE ; DISSOCIATION
收录类别SCI
语种英语
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研究方向Chemistry
项目资助者National Natural Science Foundation of China ; National Key Research and Development Plan of China
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000430451800059
出版者ROYAL SOC CHEMISTRY
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/23178
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 Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
5.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
6.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China
第一作者单位中国科学院广州能源研究所
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.
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