Optimization of spent bleaching earth regeneration using supercritical carbon dioxide using response surface methodology

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Kazemi Marziyeh; HEYDARI AMIR; KHORRAM MOHAMMAD; Esmaeilzadeh Feridun

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Paper Information

Journal: JOURNAL OF SEPARATION SCIENCE AND ENGINEERING Year:2018 | Volume:10 | Issue:2 Page(s): 20-29

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Title

Optimization of spent bleaching earth regeneration using supercritical carbon dioxide using response surface methodology

Author(s)

Kazemi Marziyeh | HEYDARI AMIR | KHORRAM MOHAMMAD | Esmaeilzadeh Feridun | Issue Writer Certificate

Keywords

Supercritical extractionQ1

Supercritical carbon dioxideQ1

Spent bleaching earthQ1

Response surface methodologyQ1

OptimizationQ2

Abstract

Bleaching using bleaching earth is one of the essential processes in edible oil refineries. The Spent bleaching earth containing 20-40 % oil, therefore it is ready for rapid oxidation and flammability. To prevent the environmental problems, it is necessary to have a proper treatment on Spent bleaching earth before disposal in the earth. The main objective of this study is to examine the removal percent of oil from Spent bleaching earth using Supercritical extraction process. Experiments were designed based on the central composite design of four parameters and the results were analyzed and optimized using Response surface methodology. According to the results of the proposed mathematical model, the best operating conditions were determined at pressure of 200 bar, temperature 44 ° C, solvent flow rate 0. 04 mL/s and time 90 minutes. The amount of extraction was 3. 26 % under the obtained optimum conditions which had been an appropriate compliance with the predicted value by related model (3. 49 %).

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APA: Copy

Kazemi, Marziyeh, HEYDARI, AMIR, KHORRAM, MOHAMMAD, & Esmaeilzadeh, Feridun. (2018). Optimization of spent bleaching earth regeneration using supercritical carbon dioxide using response surface methodology. JOURNAL OF SEPARATION SCIENCE AND ENGINEERING, 10(2 ), 20-29. SID. https://sid.ir/paper/150057/en

Vancouver: Copy

Kazemi Marziyeh, HEYDARI AMIR, KHORRAM MOHAMMAD, Esmaeilzadeh Feridun. Optimization of spent bleaching earth regeneration using supercritical carbon dioxide using response surface methodology. JOURNAL OF SEPARATION SCIENCE AND ENGINEERING[Internet]. 2018;10(2 ):20-29. Available from: https://sid.ir/paper/150057/en

IEEE: Copy

Marziyeh Kazemi, AMIR HEYDARI, MOHAMMAD KHORRAM, and Feridun Esmaeilzadeh, “Optimization of spent bleaching earth regeneration using supercritical carbon dioxide using response surface methodology,” JOURNAL OF SEPARATION SCIENCE AND ENGINEERING, vol. 10, no. 2 , pp. 20–29, 2018, [Online]. Available: https://sid.ir/paper/150057/en

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