Preparation of -SO3--coated nanopromoters for methane hydrate formation: effects of the existence pattern of -SO3- groups on the promotion efficiency

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

	Preparation of -SO3--coated nanopromoters for methane hydrate formation: effects of the existence pattern of -SO3- groups on the promotion efficiency
	Wang, Fei; Guo, Gang; Luo, Sheng-Jun; Guo, Rong-Bo
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2017
卷号	5 期号:6 页码:2640-2648
英文摘要	Sodium dodecyl sulfate (SDS) has been confirmed to be the most efficient promoter of gas hydrate formation; however, the foam generation during hydrate dissociation severely limits its application. In this study, the -SO3- group, similar to the hydrophilic group of SDS, was covalently fixed on polystyrene nanoparticles to prepare -SO3- -coated nanopromoters (-SO3-@PSNS) for methane hydrate formation. The existing form of -SO3- groups was controlled by varying the ratio of the hydrophobic and hydrophilic monomers during emulsion polymerization, which produced significant influence on the promotion efficiency. At the initial pressure of 5 MPa, when -SO3- groups existed irregularly with the macromolecules of -SO3- @PSNS in solution (-SO3- @PSNS-1), the growth rate was merely 8.02 +/- 0.95 x 10(-6) mol min(-1) mL(-1); however, when -SO3- groups were uniformly arrayed on the surface of the -SO3- @PSNS nanospheres (-SO3- @PSNS-2-3-4), the growth rate reached 18.08 +/- 3.29-40.97 +/- 2.89 x 10(-6) mol min(-1) mL(-1). When nanopromoters with regularly arrayed -SO(3)(-)groups (-SO3- @PSNS-2-3) were used at the initial pressure of 6 MPa, the entire hydrate formation process was completed within 1-2 h and the methane storage capacity reached 142 and 137 v/v, indicating much better promotion compared to other common promoters, such as SDS, nanofluids, and activated carbon. Moreover, -SO3- @PSNS-3 resulted in no foam generation during hydrate dissociation and produced excellent recycling performance in 8 cycles of methane hydrate formation. Therefore, the -SO3- -coated nanopromoters developed in this study have significant potential in the industrial application of hydrate-based natural gas storage and transportation.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	SODIUM DODECYL-SULFATE ; UNSTIRRED GAS/LIQUID SYSTEM ; ACTIVATED CARBON ; GAS HYDRATE ; SURFACTANTS ; DISSOCIATION ; KINETICS ; STORAGE ; WATER
收录类别	SCI
语种	英语
WOS记录号	WOS:000395075600027
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/9327]
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	Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Shandong Ind Engn Lab Biogas Prod & Utilizat, Qingdao 266101, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fei,Guo, Gang,Luo, Sheng-Jun,et al. Preparation of -SO3--coated nanopromoters for methane hydrate formation: effects of the existence pattern of -SO3- groups on the promotion efficiency[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(6):2640-2648.
APA	Wang, Fei,Guo, Gang,Luo, Sheng-Jun,&Guo, Rong-Bo.(2017).Preparation of -SO3--coated nanopromoters for methane hydrate formation: effects of the existence pattern of -SO3- groups on the promotion efficiency.JOURNAL OF MATERIALS CHEMISTRY A,5(6),2640-2648.
MLA	Wang, Fei,et al."Preparation of -SO3--coated nanopromoters for methane hydrate formation: effects of the existence pattern of -SO3- groups on the promotion efficiency".JOURNAL OF MATERIALS CHEMISTRY A 5.6(2017):2640-2648.