TY  - JOUR
IS  - 1-2
N1  - cited By 62
TI  - Estimations of enthalpies of dissociation of simple and mixed carbon dioxide hydrates from phase equilibrium data
JF  - Fluid Phase Equilibria
EP  - 114
SP  - 109
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-75849126298&doi=10.1016%2fj.fluid.2009.07.006&partnerID=40&md5=4502e3ec3033bd89509636ec42bfd4ad
A1  - Sabil, K.M.
A1  - Witkamp, G.-J.
A1  - Peters, C.J.
SN  - 03783812
VL  - 290
KW  - Enthalpy of dissociation; Equilibrium data; Mixed carbon and tetrahydrofuran hydrate; Tetrahydrofuran hydrate
KW  -  Carbon dioxide; Dissociation; Enthalpy; Hydrates; Phase equilibria
KW  -  Hydration
AV  - none
N2  - In the present work, the stability conditions of simple and mixed carbon dioxide (CO2) and tetrahydrofuran (THF) hydrates are experimentally measured. Considering the difficulties of obtaining the enthalpy of dissociation data through direct measurements, the enthalpies of dissociation for these hydrates are estimated from the measured equilibrium data by applying the Clausius-Clapeyron equation. The results of the calculated enthalpy of dissociation for simple CO2 and mixed CO2 and THF hydrates are presented and discussed. It is found that the estimated enthalpy of dissociation of simple CO2 hydrate varied from 56.85 to 75.37 kJ/mol, as the temperature is reduced from 282.06 to 273.15 K. Depending on the concentration of carbon dioxide and tetrahydrofuran in the hydrate forming systems, the enthalpy of dissociation of mixed carbon dioxide and tetrahydrofuran is found to be in the region of 112.37-152.27 kJ/mol. A rationale for this significant increase of the enthalpy of dissociation of the mixed hydrates is discussed. © 2009 Elsevier B.V. All rights reserved.
ID  - scholars1281
Y1  - 2010///
ER  -