Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation

doi:10.1021/acssuschemeng.7b02239

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 生物制氢与沼气团队

	Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation
	Song, Yuan-Mei 1,2; Wang, Fei 1,2; Guo, Gang 1; Luo, Sheng-Jun 1; Guo, Rong-Bo 1
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2017-10-01
卷号	5 期号:10 页码:9271-9278
关键词	Methane Hydrates Promoters Polymer-coated Cnts Formation Rate Recycling
DOI	10.1021/acssuschemeng.7b02239
文献子类	Article
英文摘要	Despite being a good promoter for methane hydrate formation, carbon nanotubes (CNTs) aggregate easily, which weakens their promotion effect. In this work, highly dispersed carbon nanotubes (CNTs) were prepared by coating the nanotube surface with an amphiphilic copolymer, namely, poly(styrene-co-sodium styrenesulfonate) (PSCS), to accelerate methane hydrate formation. In the presence of functionalized CNTs (f-CNTs), the hydrate storage capacity increased from 46 +/- 8 to 138 +/- 8 v/v when the PSCS/CNT mass ratio (R) was increased from 0 to 20. In addition, the hydrate formation period gradually shortened as the R value was increased from 5 to 20. The methane uptake was also enhanced from 68 to 135 mmol of gas/(mol of water) as the f-CNT loading was changed from 10 to 150 ppm. Meanwhile, hydrate formation could be completed within 100 min in f-CNT dispersions with high concentrations. Compared with those formed using sodium dodecyl sulfate (SDS) as the promoter, the hydrates formed with f-CNTs as the promoter mainly aggregated at the reactor bottom and generated no foams during the dissociation process. Moreover, the f-CNTs showed excellent recycling performance in eight repeated hydrate formation-dissociation processes with high gas storage capacities of 120-132 v/v, which therefore is of great significance for hydrate-based gas storage and transportation.
WOS关键词	FORMATION KINETICS ; SURFACTANT ; GAS ; NANOPARTICLES ; DISPERSION ; STORAGE ; GROWTH ; ENERGY ; WATER
WOS研究方向	Chemistry ; Engineering
语种	英语
WOS记录号	WOS:000412382700086
资助机构	China Postdoctoral Science Foundation(2017M612370) ; Shandong Province Key Research and Development Plan(2017GSF16106)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9729]
专题	青岛生物能源与过程研究所_生物制氢与沼气团队
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Shandong Ind Engn Lab Biogas Prod & Utilizat, 189 Songling Rd, Qingdao 266101, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
推荐引用方式 GB/T 7714	Song, Yuan-Mei,Wang, Fei,Guo, Gang,et al. Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(10):9271-9278.
APA	Song, Yuan-Mei,Wang, Fei,Guo, Gang,Luo, Sheng-Jun,&Guo, Rong-Bo.(2017).Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(10),9271-9278.
MLA	Song, Yuan-Mei,et al."Amphiphilic-Polymer-Coated Carbon Nanotubes as Promoters for Methane Hydrate Formation".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.10(2017):9271-9278.