Patent · US Active

Process and apparatus for mixing two streams of catalyst

US8747657B2 · kind B2 · utility

4Cited by

53References

19Claims

0Family size

Assignee

UOP LLC · US

Inventors

Lev Davydov · Northbrook, US
Lisa M. Wolschlag · Aurora, US
Paolo Palmas · Des Plaines, US
Robert L. Mehlberg · Wheaton, US
Mohammad-Reza Mostofi-Ashtiani · Naperville, US
Daniel R. Johnson · Maple Grove, US
Chad R. Huovie · Paddy Lane, US
Michael S. Sandacz · Glen Ellyn, US
Peter J. Van Opdorp · Naperville, US
Thomas W. Lorsbach · La Grange, US
Karthikeyan Paramanandam · Bengaluru, IN

Key dates

Filing date	Dec 12, 2011
Grant date	Jun 10, 2014
Priority date	—
Expiry date	Feb 8, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2208/00911
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.