Used Oil Recovery by Supercritical Solvent Extraction

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Saeeidi, Abdoreza | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41276 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Goodarznia, Iraj
Abstract:
The supercritical carbon dioxide is applied in many separation processes as solvent. Due to this applicability of carbon dioxide, in this study, it is applied to oil refinery. In order to find the maximum efficiency, the experiment was conducted in the pressure range of 150-210 bar, and the temperature range 35-65 C of temperature. Based on this study, the changes in pressure show strong effect on the efficiency, and when it increases the efficiency increases, too. Despite of the pressure, when the temperature increases at a constant pressure, the density of supercritical carbon dioxide decreases. As a result, its solubility in decreases and the oil viscosity and mass transfer rate from oil increases. According to the results, the optimized operational condition to get the highest efficiency is investigated as 210bar of pressure and 45C of temperature
Keywords:
Carbon Dioxide ; Used Frying Oil ; Supercritical Extraction ; Used Oil Recovery

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