Petroleo Brasileiro S.a. - Petrobras

Petroleo Brasiliero S.a - Petrobras

Eduardo Cardoso Guerra

Valmor Neves Vieira

Jose Geraldo Ramos

The present invention relates to a system for fastening and sealing the flanges of the inlets of pressure vessels operating under extreme temperature conditions and with frequent opening/closing cycles, as is the case of coking vessels (5), consisting of an assembly of a flange of the tongue (1) and groove (2) type, a C-clamp (3), and a soft compression gasket (4). Such a system offers total remote control of the opening of the vessel inlets, resulting in greater safety, less unit downtime, and lower operating costs. The invention also relates to a method for opening inlets which results therefrom.

System and method for rapid opening of coking vessels

A process for separating catalyst particles in the catalytic cracking of reacted hydrocarbons includes feeding the reacted hydrobarbons to an unconfined cyclone device made up of a diplegless cyclone opening directly into a large volume separator vessel downwardly through a mouth and upwardly through the annular space between concentric pipes. The concentric pipes are connected to the other components of the system as well as the hydrocarbon fluid catalytic cracking process carried out in the system.

Catalytic cracking process for hydrocarbons

A system for separating catalyst particles in the catalytic cracking of reacted hydrocarbons includes an unconfined cyclone device made up of a diplegless cyclone opening directly into a large volume separator vessel downwardly through a mouth and upwardly through the annular space between concentric pipes. The concentric pipes are connected to the other components of the system as well as the hydrocarbon fluid catalytic cracking process carried out in the system.

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Petropolis, Brazil

Eduardo Cardoso Guerra