REGENERATION OF ION-EXCHANGE CATALYST BY SUPERCRITICAL FLUID EXTRACTION PROCESS
https://doi.org/10.30724/1998-9903-2018-20-1-2-111-121
Abstract
Supercritical fluid extraction regeneration of the ion-exchange KU-2FPP catalyst is investigated. Results of change of mass of the catalyst are presented during regeneration at T = 383-393 K and P = 15-25 MPa and IR spectrums of chloroformic extracts of the studied catalyst samples. Results of the conducted researches allow to draw a conclusion on effective removal of polar and unpolar organic compounds. However the collateral reaction connected with emergence of dialkylphthalate is a probable cause of inefficiency of regeneration process with participation of SC-CO2 as the extractant. And use supercritical propane - butane mix (T = 393 K, P = 10-15 MPa) as the supercritical extractant allows to restore activity of the catalyst to the level meeting the requirements of industrial use.
About the Authors
M. R. Khazipov
Kazan National Research Technological University
Russian Federation
Russian Federation
Marat Hazipov – postgraduate, Department theoretical basis of thermotechnics
K. A. Sagdeev
Nizhnekamsk institute of chemical and technology Kazan National Research Technological University
Russian Federation
Russian Federation
Kamil Sagdeev – cand. sci. (thechn.), assistant professor, Department engineering and physics of low temperature
A. A. Sagdeev
Nizhnekamsk institute of chemical and technology Kazan National Research Technological University
Russian Federation
Russian Federation
Ayrat Sagdeev – cand. sci. (thechn.), head of department, Department engineering and physics of low temperature
A. T. Galimova
Nizhnekamsk institute of chemical and technology Kazan National Research Technological University
Russian Federation
Russian Federation
Albina Galimova – cand. sci. (thechn.), assistant professor, Department engineering and physics of low temperature
V. F. Khairutdinov
Kazan National Research Technological University
Russian Federation
Russian Federation
Vener Khairutdinov – cand. sci. (thechn.), assistant professor, Department theoretical basis of thermotechnics
F. M. Gumerov
Kazan National Research Technological University
Russian Federation
Russian Federation
Farid Gumerov – dr. sci. (thechn.), head of department, Department theoretical basis of thermotechnics
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Review
For citations:
Khazipov M.R., Sagdeev K.A., Sagdeev A.A., Galimova A.T., Khairutdinov V.F., Gumerov F.M. REGENERATION OF ION-EXCHANGE CATALYST BY SUPERCRITICAL FLUID EXTRACTION PROCESS. Power engineering: research, equipment, technology. 2018;20(1-2):111-121. (In Russ.) https://doi.org/10.30724/1998-9903-2018-20-1-2-111-121
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