The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2004
Filed:
May. 07, 2001
Eduardo Cardoso De Melo Guerra, Petrópolis, BR;
Petroleo Brasileiro S.A., Rio de Janeiro, BR;
Abstract
A distributor ( ) for the equalization of flow rate of cyclones in closed cyclone systems installed in the interconnection of the cyclones of the disengager vessel of the gas-solid suspension of the fluid catalytic cracking (FCC) processes is described, that distributes the gases exiting the first stage cyclones so as to promote a desirable and uniform flow rate of said gases through said space, besides absorbing the relative movements between the cyclones caused by the differential thermal expansion. The distributor of the invention secures a homogeneous accommodation of the gas-solid suspension in a connecting pipe, allowing a uniform cyclone operation in the next stage, no matter the geometry of the riser-cyclone set or of the downer-cyclone set.