Alberto Maria Gambelli , Federico Rossi , Giovanni Gigliotti
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Hydrates production with binary CO2/C3H8 gaseous mixtures (90/10, 85/15, 80/20 vol%) in batch and unstirred conditions: The role of propane on the process thermodynamics
Previous studies revealed that the addition of propane enhances the recovery of methane and the storage of carbon dioxide but, at the same time, the enclathration of propane is limited. In order to deepen the CO2/CH4 replacement mechanism in the presence of contained concentrations of propane, this research experimentally explores the formation of hydrates into an unstirred reactor with binary CO2/C3H8 mixtures at different concentrations (from 90/10 to 80/20 vol%). The lowest pressures reached within the system, together with the thermodynamic trend of both formation and dissociation processes, allowed to explain the previously mentioned low capture of propane during replacement. The results were then explained in terms of cage occupancy and molecular diameter/cavity diameter ratio.
期刊介绍:
Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline.
Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.