Восстановление активности промышленной партии CoMo/Al2O3 катализатора глубокой гидроочистки

Industrial testing of the developed technology for reactivation of the CoMo/Al 2 O 3 catalysts for deep hydrotreatment of diesel fuel was the oxidative regeneration of the catalyst followed by the treatment with organic complexing agents. A series of analytic and physicochemical techniques were used for studying samples of the catalyst, both fresh and at different stages of the reactivation. The chemical composition, textural parameters, mechanical strength and the structure of the active sulfide component were determined (TEM, XPS). Catalytic and life (360 h) tests were conducted using hydrotreatment of the straight-run diesel fraction. The physicochemical and catalytic properties of the sample were demonstrated to restore after the said treatments. The reactivated industrial catalyst for the deep hydrotreatment was loaded to an industrial reactor L-24-6 and demonstrated the stable operation in purifying the straight-run diesel fuel (containing up to 10 % of light catcracking gasoil) to provide no more than 10 ppm of the residual sulfur. The results obtained were compared to the performance of fresh industrial catalysts to show that the developed technology ensures practically complete restoration of properties of the deactivation catalysts.