REGENERATION OF ION-EXCHANGE CATALYST BY SUPERCRITICAL FLUID EXTRACTION PROCESS

Autor: M. R. Khazipov, K. A. Sagdeev, A. A. Sagdeev, A. T. Galimova, V. F. Khairutdinov, F. M. Gumerov
Jazyk: English<br />Russian
Rok vydání: 2018
Předmět:
Zdroj: Известия высших учебных заведений: Проблемы энергетики, Vol 20, Iss 1-2, Pp 111-121 (2018)
Druh dokumentu: article
ISSN: 1998-9903
DOI: 10.30724/1998-9903-2018-20-1-2-111-121
Popis: 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.
Databáze: Directory of Open Access Journals