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:
Apr. 21, 2020
Filed:
May. 31, 2017
Uop Llc, Des Plaines, IL (US);
Peter Kokayeff, Naperville, IL (US);
Robert L. Mehlberg, Wheaton, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
Processes and apparatuses are disclosed for catalytically cracking hydrocarbons comprising hydrotreating a residual feed stream and a recycle cracked stream comprising an oil to provide a hydrotreated effluent stream. The hydrotreated effluent stream is separated to provide a FCC feed stream and a distillate stream. The FCC feed stream is fed to a first riser reactor to provide a first cracked stream. The distillate stream is fed to a second riser reactor to provide a second cracked stream. The first cracked stream and the second cracked stream are fed to a main fractionation column. The first cracked stream and the second cracked stream are fractionated in the main fractionation column. The recycle cracked stream is taken from the main fractionation column.