Abstract:
The present disclosure relates to a dehydrogenation catalyst composite comprising at least one alumina support impregnated with at least one layer of at least one alkaline earth metal element and at least one layer comprising at least one catalytic metal element, at least one group VIA element and optionally, at least one halogen element. The present disclosure also relates to a process for preparation of the dehydrogenation catalyst composite.
Abstract:
There is provided a method for regenerating a spent dehydrogenation catalyst used in the conversion of n-paraffin to olefin. The method comprises method steps for removing the coke by treating the catalyst with an ozone-oxygen stream followed by an oxygen stream. The catalyst is stabilized by passing a nitrogen stream and the stabilized catalyst is rejuvenated by passing an air-nitrogen stream containing a halogenated hydrocarbon. This is followed by reducing the metal oxide in the catalyst by passing hydrogen-nitrogen stream.
Abstract:
There is provided a method for regenerating a spent dehydrogenation catalyst used in the conversion of n-paraffin to olefin. The method comprises method steps for removing the coke by treating the catalyst with an ozone-oxygen stream followed by an oxygen stream. The catalyst is stabilized by passing a nitrogen stream and the stabilized catalyst is rejuvenated by passing an air-nitrogen stream containing a halogenated hydrocarbon. This is followed by reducing the metal oxide in the catalyst by passing hydrogen-nitrogen stream.
Abstract:
The present invention provides a dehydrogenation catalyst composite that is capable of providing a dehydrogenated hydrocarbon product characterized by a bromine number of at least 19. for hydrocarbons. The dehydrogenation catalyst of the present invention comprises a nano-sized complex containing a Group VIII component; a group IVA component and a sulfur containing capping agent; an alkali component; a halogen component; and a support with an inner core of alpha alumina and an outer layer comprising a mixture of gamma alumina and delta alumina.