<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ho, Leong Chuan</style></author><author><style face="normal" font="default" size="100%">Babu, Ponnivalavan</style></author><author><style face="normal" font="default" size="100%">Kumar, Rajnish</style></author><author><style face="normal" font="default" size="100%">Linga, Praveen</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">HBGS (hydrate based gas separation) process for carbon dioxide capture employing an unstirred reactor with cyclopentane</style></title><secondary-title><style face="normal" font="default" size="100%">Energy</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Carbon dioxide capture</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclopentane</style></keyword><keyword><style  face="normal" font="default" size="100%">Gas hydrates</style></keyword><keyword><style  face="normal" font="default" size="100%">Gas separation</style></keyword><keyword><style  face="normal" font="default" size="100%">Pre-combustion</style></keyword><keyword><style  face="normal" font="default" size="100%">Unstirred reactor</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">DEC</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">63</style></volume><pages><style face="normal" font="default" size="100%">252-259</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The effect of CP (cyclopentane) as a promoter/additive, in the HBGS (hydrate based gas separation) process for pre-combustion gas mixture was investigated by employing an unstirred reactor configuration. Gas uptake measurements were performed at two different temperatures (275.7 K and 285.7 K) and at an experimental pressure of 6.0 MPa to determine the kinetics of hydrate formation. Experiments were conducted with three different volumes (7.5, 15 and 22 ml) of CP and based on induction time and the rate of hydrate growth, 15 ml of CP was determined to be the optimal volume for carbon dioxide capture at 6.0 MPa and 275.7 K. In addition, the effect of a kinetic promoter, SDS (sodium dodecyl sulfate), was investigated. Surprisingly, no improvement in kinetic performance was observed at 6.0 MPa and 275.7 K in the presence of SDS and CP. From the study, it was found that at the optimal 15 ml CP (CP layer thickness of 1.8 mm), the average composition of carbon dioxide in the hydrate phase was 90.36 mol% with a separation factor of 17.82. Furthermore, the unstirred reactor also yielded better kinetic performance over the stirred tank reactor with the unstirred reactor having a 2.28 times higher average gas uptake. (C) 2013 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">4.159
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Babu, Ponnivalavan</style></author><author><style face="normal" font="default" size="100%">Yang, Ting</style></author><author><style face="normal" font="default" size="100%">Veluswamy, Hari Prakash</style></author><author><style face="normal" font="default" size="100%">Kumar, Rajnish</style></author><author><style face="normal" font="default" size="100%">Linga, Praveen</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hydrate phase equilibrium of ternary gas mixtures containing carbon dioxide, hydrogen and propane</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Chemical Thermodynamics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Carbon dioxide capture</style></keyword><keyword><style  face="normal" font="default" size="100%">Gas hydrates</style></keyword><keyword><style  face="normal" font="default" size="100%">Global warming</style></keyword><keyword><style  face="normal" font="default" size="100%">Phase equilibrium</style></keyword><keyword><style  face="normal" font="default" size="100%">Pre-combustion</style></keyword><keyword><style  face="normal" font="default" size="100%">Thermodynamics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">24-28 OVAL RD, LONDON NW1 7DX, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">61</style></volume><pages><style face="normal" font="default" size="100%">58-63</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Hydrate phase equilibrium of the ternary guest mixtures containing carbon dioxide, hydrogen and propane at two different compositions were determined. Addition of mole composition of 2.5% propane to the fuel gas (CO2 (40%)/H-2 (60%)) mixture reduces the hydrate formation conditions by 66% at the temperature of 278.4 K. A Clausius-Clapeyron plot for the experimental results was plotted and from the slope, the enthalpy of hydrate dissociation was calculated. The enthalpy of dissociation of the mixed hydrate formed from a ternary gas mixture containing mole composition 38.1% CO2, 59.4% H-2 and 2.5% C3H8 was found to be 110 kJ.mol(-1) and hence it was concluded that the mixed hydrate formed structure II (sII) hydrates. Whereas for the ternary gas mixture containing mole composition 80.0% CO2, 18.8% H-2, and 1.2% C3H8, the enthalpy of dissociation of the mixed hydrate was found to be 78 kJ.mol(-1) and hence we believe the mixed hydrate formed structure I (sI) hydrate. (C) 2013 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.423
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Veluswamy, Hari Prakash</style></author><author><style face="normal" font="default" size="100%">Kumar, Rajnish</style></author><author><style face="normal" font="default" size="100%">Linga, Praveen</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hydrogen storage in clathrate hydrates: Current state of the art and future directions</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Energy</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Clathrates</style></keyword><keyword><style  face="normal" font="default" size="100%">Gas hydrates</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrogen hydrates</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrogen storage</style></keyword><keyword><style  face="normal" font="default" size="100%">Promoters</style></keyword><keyword><style  face="normal" font="default" size="100%">Storage capacity</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER SCI LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">122</style></volume><pages><style face="normal" font="default" size="100%">112-132</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Hydrogen is looked upon as the next generation clean energy carrier, search for an efficient material and method for storing hydrogen has been pursued relentlessly. Improving hydrogen storage capacity to meet DOE targets has been challenging and research efforts are continuously put forth to achieve the set targets and to make hydrogen storage a commercially realizable process. This review comprehensively summarizes the state of the art experimental work conducted on the storage of hydrogen as hydrogen clathrates both at the molecular level and macroscopic level. It identifies future directions and challenges for this exciting area of research. Hydrogen storage capacities of different clathrate structures - sI, sII, sH, sVI and semi clathrates have been compiled and presented. In addition, promising new approaches for increasing hydrogen storage capacity have been described. Future directions for achieving increased hydrogen storage and process scale up have been outlined. Despite few limitations in storing hydrogen in the form of clathrates, this domain receives prominent attention due to more environmental-friendly method of synthesis, easy recovery of molecular hydrogen with minimum energy requirement, and improved safety of the process. (C) 2014 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">7.12
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