02012nas a2200229   4500008004100000022001400041245016100055210006900216260010600285300001200391490000800403520106200411653002701473653001701500653002201517653001701539653004301556100002301599700001901622700001901641856012201660       2014                        eng d  a0009-250900aUnusual behavior of propane as a co-guest during hydrate formation in silica sand: potential application to seawater desalination and carbon dioxide capture0 aUnusual behavior of propane as a coguest during hydrate formatio  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcSEP  a342-3510 v1173 a<p>We report an unusual behavior of hydrate formation in silica sand with gas mixtures containing propane as a co-guest. Based on morphology study we observed that propane as a co-guest has the ability to draw water dispersed in silica sand to the hydrate formation region and showed a tendency to result in drastic hydrate growth due to the migration of water molecules to the gas phase region. Hydrate nucleation occurred in the interstitial pore space between the silica sand particles and hydrate growth occurred in the gas phase above the silica sand bed and to sustain the hydrate growth, dispersed water was drawn towards the hydrate growth front. In addition, we elucidated the effect of sand bed height to maximize the growth rates utilizing this behavior that results in enhanced kinetics. We propose conceptual designs for utilizing this behavior of propane as a co-guest in sand for seawater desalination and an innovative approach to simultaneously capture carbon dioxide and desalinate seawater. (C) 2014 Elsevier Ltd. All rights reserved.</p>10aCarbon dioxide capture10aDesalination10aEnhanced kinetics10aGas hydrates10aPropane hydrate: pre-combusuon capture1 aBabu, Ponnivalavan1 aKumar, Rajnish1 aLinga, Praveen  uhttps://library.ncl.res.in/content/unusual-behavior-propane-co-guest-during-hydrate-formation-silica-sand-potential-0