01412nas a2200157   4500008004100000245011000041210006900151260000800220520079800228100002001026700002001046700001401066700001901080700002501099856013001124       2011                        eng d00aMolecular dynamics simulations of ch4 clathrate hydrate dissociation adjacent to hydrated silica surfaces0 aMolecular dynamics simulations of ch4 clathrate hydrate dissocia  cJUL3 a<p>We use molecular dynamics simulations to study the decomposition of structure I CH4 clathrate hydrate exposed to water. Simulations are performed for a hydrate + water system and two related cases with the hydrate adjacent to hydrate silica layers. The simulations are in the NVE adiabatic ensemble paying careful attention to the non-isothermal nature of the hydrate dissociation process. The effects of mass and energy transfer on the hydrate dissociation rate are studied. The effect of the silica surface on the dissociation rate and mechanism are studied. It is observed that the hydrate layer decomposes more quickly in simulations where it is in contact with silica. The implications on decomposition of the hydrate in hydrate reservoirs adjacent to sand sediments are discussed.</p>1 aBagherzadeh, A.1 aEnglezos, Peter1 aAlavi, S.1 aKumar, Rajnish1 aRipmeester, John, A.  uhttps://library.ncl.res.in/content/molecular-dynamics-simulations-ch4-clathrate-hydrate-dissociation-adjacent-hydrated-silica01880nas a2200253   4500008004100000022001400041245010400055210006900159260010600228300001200334490000700346520093600353653002701289653002201316653001701338653001901355653001601374653002701390100002301417700001901440700001901459700002001478856012801498       2015                        eng d  a0360-544200aReview of the hydrate based gas separation (HBGS) process for carbon dioxide pre-combustion capture0 aReview of the hydrate based gas separation HBGS process for carb  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUN  a261-2790 v853 a<p>In this work, a systematic review of the literature work done so far on the use of hydrate crystallization as a basis to develop data for the hydrate based gas separation (HBGS) process for the capture of CO2 from fuel gas mixtures is presented. Such a gas mixture may arise in integrated gasification combined cycle (IGCC) power plants. A thorough assessment of the thermodynamic, kinetic factors and economic aspects of the HBGS process and critical comments are presented. Compared with competing technologies, high CO2 capacity and the use of water as a solvent are key advantages for the HBGS process for CO2 capture. Furthermore, in this review, a snapshot of the current state-of-the-art is presented and further research and development opportunities and pathways for commercializing the HBGS process for pre-combustion capture of CO2 from IGCC power plants are discussed. (C) 2015 Elsevier Ltd. All rights reserved.</p>10aCarbon dioxide capture10aClathrate process10aGas hydrates10aGas separation10aIGCC plants10aPre-combustion capture1 aBabu, Ponnivalavan1 aLinga, Praveen1 aKumar, Rajnish1 aEnglezos, Peter  uhttps://library.ncl.res.in/content/review-hydrate-based-gas-separation-hbgs-process-carbon-dioxide-pre-combustion-capture-0