Uop Lcc

Lisa M Wolschlag

Paolo Palmas

Mohammad-Reza Mostofi-Ashtiani

Robert L Mehlberg

Lev Davydov

Michael S Sandacz

Daniel Robert Johnson

Thomas W Lorsbach

Chad R Huovie

Peter J Van Opdorp

Karthikeyan Paramanandam

Sujay R Krishnamurthy

Zhihao Fei

Lawrence A Lacijan

Paul S Nishimura

Christopher P Nicholas

Charles P Luebke

Brian W Hedrick

Steven Lee Krupa

Hosoo Lim

A counter-current catalyst regenerator with at least two stages of counter-current contact is proposed. Each stage may comprise a permeable barrier that allows upward passage of oxygen-containing gas and downward passage of coked catalyst into each stage, but inhibits upward movement of catalyst to mitigate back mixing and approximate true counter-current contact and efficient combustion of coke from catalyst.

Process for combustion coke from coked catalyst

Processes for oligomerizing olefins to produce diesel. The oligomerization zone temperature is controlled to counteract catalyst deactivation caused by coking, by contaminants such as cyclo C5 and/or cyclo C6 hydrocarbons, or both. The temperature is increased in increments to ensure that that the oligomerization zone is producing product at a target product yield with a target product quality, which may be measured by a product cetane number. The target product yield is at least 50 wt % and a target product cetane number may be at least 35.

Process for producing a diesel fuel by oligomerization

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.

Process and apparatus for mixing two streams of catalyst

Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed.

Process for regenerating catalyst

Apparatus for regenerating catalyst

Growing community of inventors

Aurora, IL, United States of America

Lisa M Wolschlag