2015
DOI: 10.1021/acs.iecr.5b03476
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Role of Surfactants in Promoting Gas Hydrate Formation

Abstract: Gas hydrates have been proposed as a potential technology for a number of applications, such as separation of gas mixtures, CO2 capture, transportation, and sequestration, methane storage and transport, and seawater desalination. Most of these applications will benefit from reduced induction time of hydrate nucleation, enhanced hydrate growth rate, and maximum water-to-hydrate conversion. The addition of surfactants to the gas–water system serves this purpose in a very effective manner. This review focuses on … Show more

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Cited by 370 publications
(256 citation statements)
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“…Efficient surfactants may avoid using any agitation for hydrate formation (i.e., hydrate formation can be conducted under quiescent conditions), and thus allow to save energy costs, which is an important point if the hydrate process is to be scaled up and used industrially . The anionic surfactant SDS (sodium dodecyl sulfate, referred to as SC 12 S in the rest of the study) has been widely studied in the literature for its propensity to promote hydrate nucleation and growth (Kumar et al, 2015). The enhanced hydrate nucleation could be due to a favorable arrangement of the water molecules around the SC 12 S molecules Lo et al,2012).…”
Section: Introductionmentioning
confidence: 99%
“…Efficient surfactants may avoid using any agitation for hydrate formation (i.e., hydrate formation can be conducted under quiescent conditions), and thus allow to save energy costs, which is an important point if the hydrate process is to be scaled up and used industrially . The anionic surfactant SDS (sodium dodecyl sulfate, referred to as SC 12 S in the rest of the study) has been widely studied in the literature for its propensity to promote hydrate nucleation and growth (Kumar et al, 2015). The enhanced hydrate nucleation could be due to a favorable arrangement of the water molecules around the SC 12 S molecules Lo et al,2012).…”
Section: Introductionmentioning
confidence: 99%
“…They suggest using surface-active substances in order to accelerate the process of nucleation of hydrates, enabling a more active heat transfer and increasing the contact surface between water and gas [27]. Researchers from Iran study effect of the application of nano particles of copper oxide in order to increase the volume of gas absorbed by water, for a better water conversion into hydrate state and for a growth of kinetics of hydrate formation process [28].…”
Section: Literature Review and Problem Statementmentioning
confidence: 99%
“…There are several ways to promote gas hydrate formation rate known at present: use of surfactants (Kumar, Bhattacharjee, Kulkarni, & Kumar, 2015), water spraying to increase surface area between phases (Brown, Taylor, & Bernardo, 2010), use of dry water concept (both of speeding the process and transportation) (Wang, Bray, Adams, & Cooper, 2008), hollow silica (Prasad, Sowjanya, & Dhanunjana Chari, 2014), use of copper nano-particles in water (Li, Liang, Guo, Wang, & Fan, 2006), even use of potato starch (Fakharian, Ganji, Naderi Far, & Kameli, 2012).…”
Section: Utilization Of Coalbed Methanementioning
confidence: 99%
“…So, the induction time that occurs right after nucleation is reduced due to the use of promoters (surfactants), whereas, growth rate gets extended (Kumar, Bhattacharjee, Kulkarni, & Kumar, 2015). The right amount of a surfactant can even change the morphology enhancing better water-gas contact and, therefore, increase growth rate of a hydrate (Kalogerakis, Jamaluddin, Dholabhai, & Bishnoi, 1993;Zhong & Rogers, 2000).…”
Section: How Do Surfactants Work?mentioning
confidence: 99%