Thermodynamic modelling of dissociation temperatures of Carbon dioxide hydrates in the presence of Acetone
Volume Title: 1
Authors
Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, Iran
Abstract
In this work, dissociation temperatures of carbon dioxide hydrates in the presence of acetone which is a water-soluble organic promoter are studied. A simple model is proposed based on the enthalpy of hydrate dissociation for CO2+Acetone using Genetic Programming (GP) and Teaching-Learning-Based Optimization (TLBO) algorithm. Moreover, water activity is calculated using the van Laar activity coefficient model. Ten sets of acetone and water mixture concentrations for the pressure range of 0.89-4 MPa are achieved from a previous experimental study by Tatsuo Maekawa. The AAD for CO2 hydrate dissociation temperatures was found to be 0.33 K, which indicates the accuracy of the model.
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