Experimental and simulation studies on the phase behaviour for gas hydrates in a CO2 rich gas dominant multiphase pipeline system. (5th January 2022)

• Record Type: Journal Article
• Authors: Sayani, Jai Krishna Sahith; Ho, Kuah Jian; Lal, Bhajan; Pedapati, Srinivasa Rao
• Is Part Of: Canadian journal of chemical engineering. Volume 100:Number 11(2022)
• Page Start: 3419
• Page End: 3427
• Publication Date: 2022-01-05
• Subjects: Aspen HYSYS -- CSMGem -- gas hydrates -- multiphase flow behaviour -- PVTSim; Chemical engineering -- Periodicals; Technology -- Periodicals; 660.05
• DOI: 10.1002/cjce.24319
• Languages: English
• ISSNs: 0008-4034

Abstract

Abstract: In this work, an experimental and modelling study is performed to identify the phase behaviour of gas hydrates formation for a high CO2 content natural gas system and multiphase gas dominant system. Further, CSMGem, PVTSim, and Aspen HYSYS software packages are used to verify the prediction capabilities for gas hydrates formation conditions. Initially, thermodynamic equilibrium conditions are obtained using CSMGem, PVTSim, and Aspen HYSYS. Then, these results are validated and compared to the experimental work to verify the accuracy in predicting hydrate formation conditions. An experimental study is performed in the pressure range of 2–7 MPa for a pure system and multiphase system with the gas composition of carbon dioxide (70%) + methane (26%) + ethane (2%) + propane (1%) + butane (1%). The results show that the PVTSim software package shows the best accuracy with 99.9% for the pure system and 99.88% for the multiphase system.