2017
DOI: 10.1039/c7ta02830j
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Grafting of nano-Ag particles on –SO3-coated nanopolymers for promoting methane hydrate formation

Abstract: Sodium dodecyl sulfate (SDS) has been reported to be the most efficient promoter for hydrate-based natural gas storage and transportation, however, foam generation during hydrate dissociation seriously affects its application. Nano-metal particles have also been demonstrated to be efficient promoters, nevertheless their poor stability is a serious problem. In this work, we first fixed -SO

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Cited by 30 publications
(9 citation statements)
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“…The use of surfactants generates a large amount of foam, especially during the hydrate dissociation process when the dissociated gas diffuses upward through the aqueous solution. Handling of this huge amount of generated foam then becomes a real problem even in laboratory scale setups and which one would expect, by extension, to be even more cumbersome in a pilot or commercial scale setup. …”
Section: Introductionmentioning
confidence: 98%
“…The use of surfactants generates a large amount of foam, especially during the hydrate dissociation process when the dissociated gas diffuses upward through the aqueous solution. Handling of this huge amount of generated foam then becomes a real problem even in laboratory scale setups and which one would expect, by extension, to be even more cumbersome in a pilot or commercial scale setup. …”
Section: Introductionmentioning
confidence: 98%
“…[18][19][20][21][22][23] However, surfactants are subject to copious and persistent foam during degassing, and this could deteriorate gas release and increase the risk of leakage in industrial applications. [24][25][26] Furthermore, many surfactants are derived from nonrenewable petrochemical feedstocks, which are deleterious to environment and difficult to degrade naturally. 27 Amino acids, the building blocks of proteins, are another class of kinetic additives that have been reported to significantly improve methane hydrate formation, and the absence of foam during degassing makes them attract attention.…”
Section: Introductionmentioning
confidence: 99%
“…As one of the most efficient kinetic promoters, surfactants predominantly change the interfacial properties of solutions, causing improved interfacial mass transfer and subsequently resulting in enhanced hydrate kinetics 18–23 . However, surfactants are subject to copious and persistent foam during degassing, and this could deteriorate gas release and increase the risk of leakage in industrial applications 24–26 . Furthermore, many surfactants are derived from nonrenewable petrochemical feedstocks, which are deleterious to environment and difficult to degrade naturally 27 .…”
Section: Introductionmentioning
confidence: 99%
“…To eliminate foam generation, heterogeneous promoters have been developed, , for instance, the carbon nanotube-doped SDS and amphiphilic-polymer-coated carbon nanotubes . Nevertheless, they are inferior to surfactants in the methane hydrate formation rate.…”
Section: Introductionmentioning
confidence: 99%
“…12−15 However, during the dissociation of the hydrate, both the surfactants suffer from generation of large quantities of foam, leading to loss of surfactants and pollution in the pipeline and further affecting the recycling of the surfactants. 14−16 To eliminate foam generation, heterogeneous promoters have been developed, 17,18 for instance, the carbon nanotubedoped SDS 19 and amphiphilic-polymer-coated carbon nanotubes. 20 Nevertheless, they are inferior to surfactants in the methane hydrate formation rate.…”
Section: Introductionmentioning
confidence: 99%