http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Bahman Zarenezhad,Mona Mottahedin,Ali Haghighi Asl 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.3
Accurate prediction of phase equilibria regarding CH_4 replacement in hydrate phase with high pressure CO_2 is an important issue in modern reservoir engineering. In this work we investigate the possibility of establishing a thermodynamic framework for predicting the hydrate equilibrium conditions for evaluation of CO_2 injection scenarios. Different combinations of equations of state and mixing rules are applied and the most accurate thermodynamic models at different CO_2 concentration ranges are proposed.
Bahman ZareNezhad,Mona Mottahedin,Farshad Varaminian 한국화학공학회 2013 Korean Journal of Chemical Engineering Vol.30 No.12
The carbon dioxide gas hydrate formation kinetics at the onset of turbidity is experimentally and theoretically investigated. It is shown that the time-dependent heterogeneous nucleation and growth kinetics are simultaneously governing the hydrate formation process at the onset of turbidity. A new approach is also presented for determination of gas hydrate-liquid interfacial tension. The CO2 hydrate-liquid interfacial tension according to the suggested heterogeneous nucleation mechanism is found to be about 12.7 mJ/m2. The overall average absolute deviation between predicted and measured CO2 molar consumption is about 0.61%, indicating the excellent accuracy of the proposed model for studying the hydrate-based CO2 capture and sequestration processes over wide ranges of pressures and temperatures.