Petroleo Brasileiro S.a. - Petrobras

Shelton Rolim Cercal

Wilson Kenzo Huziwara

Andrea De Rezende Pinho

Emanuel Freire Sandes

José Geraldo Furtado Ramos

Jose Antonio Vidal Vieira

Nelson Patricio Junior

Donizeti Aurelio Silva Belato

Jorge Roberto Duncan Lima

Paulo Sérgio Freire

Paulo Sergio Freire

Jorivaldo Medeiros

Luiz Carlos Casavechia

William Victor Carlos Candido

Angelo Jose Gugelmin

Ademaro Marchiori

Alinson Francisco Geros

Marcelle Vensão Camargo Foschiani

Roberto Ruva

Jorilvaldo Medeiros

William Victor Candido

Jose Antonio Vieira

Jorge Roberto Lima

Donizeti Aurelio Belato

Marcelle Vensao Foschiani

Pinho Andrea De Rezende Rezende

Aurélio Medina Dubios

Nelson Junoir Patricio

The present invention relates to a device and respective process for distribution of mixed charges comprising a flat tray in the form of a disc drained by a series of drainage tubes located above the surface of fixed beds of catalysts, capable of promoting the homogenisation and distribution of charges by means of said device. Such drainage tubes mounted in said manner have the objective of restricting and reorienting the flow of mixed charges, multiplying the points whereon they fall, principally of the liquid phase, onto said beds of catalysts. For the purpose of doing so said drainage ducts, being segments of tubes, distributed on the entire surface of said tray possess caps affixed at the upper extremity thereof impeding the direct flow of charge onto the bed of catalyst, creating a reservoir of liquid on the tray, subsequently being drained down such device in a more controlled manner.

Device and process for distribution of mixed charges onto fixed beds of catalyst in descending-flow reactors

The present invention relates to a system for the separation of suspensions of spent catalysts and hydrocarbons formed in an FCC unit with multiple ascending flow reaction tubes, comprising interconnections between each of the ascending flow reaction tubes and the separator vessel, each interconnection also comprises two sections. The outside sections of the separator vessel are inclined and are connected to a single vertical section, which penetrates into the interior of the separator vessel, and which has at its lower end an open device for draining the spent catalyst from the suspensions separated in this sector. In the same vertical section, at the end of its internal part at the separator vessel, a series of two sets of cyclones are installed, the first set containing cyclones without sealing legs, and the second set containing conventional cyclones of the first stage. The present invention also relates to a process for the separation of suspensions of spent catalysts and hydrocarbons using the said separation system.

System and process for the separation of suspensions of spent catalysts and hydrocarbons formed in a fluid catalytic cracking unit with multiple ascending flow reaction tubes

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São Mateus do Sul, Brazil

Shelton Rolim Cercal