抄録
We presents a computational scheme to simulate the process of CO_2 capture from a gas mixture simulated CO_2 containing uncornventional natural gas utilizing hydrate formation. We first show the formulations with which the computations are progressed. Illustrative computations are performed to show the evolution of mole fraction in the gas phase during each long-term hydrate-based gas-separating operation. Quantitative predictions are obtained for the increase in the CH_4 mole fraction in the gas phase through the system-composition evolution. The effects of dilute heavy constituents, such as ethane or propane, and impurities, such as nitrogen or hydrogen sulfide, are also discussed.
