Regeneration of the Catalysts by Supercritical Fluid Extraction

Farid M. Gumerov, Ayrat A. Sagdeev, Rustam F. Gallyamov, Albina T. Galimova, Kamil A. Sagdeev

Federal State Budgetary Educational Institution of Higher Professional Education “Kazan National Research Technological University”, Kazan, Russia.
Nizhnekamsk Chemical Technological Institute (Branch Institute) of the Kazan National Research Technological University, Nizhnekamsk, Russia.

DOI: 10.4236/ijamsc.2014.21001                

Abstract

The decontaminating of catalysts nickel on kieselguhr, activated aluminum oxide and palladium catalyst LD-265 agent’s nature was analyzed. The possibility of catalyst’s regeneration was examined using supercritical CO₂ extraction. Regeneration of coked catalysts was carried out at 70^oC and 150^oC in the pressure range 10 - 30 MPa by pure and modified supercritical CO₂. Methanol and dimethylsulfoxide were used as modifiers (co-solvents) of supercritical CO₂. The kinetics of supercritical CO₂ regeneration process was studied. The activity of regenerated catalysts was measured.

Keywords

Nickel on Kieselguhr Catalyst; Activated Aluminum Oxide; Palladium Catalyst LD-265; Supercritical Carbon Dioxide; Regeneration

Conflicts of Interest

The authors declare no conflicts of interest.

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