Uop Lcc

Kevin J Brandner

Constante P Tagamolila

Robert C Mulvaney, Iii

Bruce A Briggs

Paul Anderson

Steven T Arakawa

William Wiede, Jr

Brian W Hedrick

Daniel Robert Johnson

Donald E Felch

Donald Eelch

A process and apparatus for fluidizing a catalyst cooler with fluidization gas fed to the cooler below the catalyst bed is disclosed. Fluidization headers extend through an outlet manifold and deliver fluidization gas through distributors protruding through an outlet tube sheet defining said outlet manifold. The outlet manifold collects heated water vapor from the catalyst cooler and discharges it from the catalyst cooler.

Process and apparatus for fluidizing a catalyst bed

Embodiments of a gas-solids separation unit and embodiments of a method for manufacturing a separation unit are provided. In one embodiment, the separation unit includes a cyclonic separator and a vessel having a flue gas chamber, a clean gas chamber, and an entrained solids chamber between the flue gas chamber and the clean gas chamber. The cyclonic separator includes, in turn, a cyclone barrel extending from the flue gas chamber toward the clean gas chamber, a swirl vane positioned across the cyclone barrel, a gas outlet tube fluidly coupling the cyclone barrel to the clean gas chamber, and a first check valve opening formed through the barrel sidewall upstream of the gas outlet tube. The check valve opening fluidly couples the cyclone barrel to the entrained solids chamber to permit the centrifugal separation of the particulate matter from the gas stream during operation of the gas-solids separation unit.

Gas-solids separation units and methods for the manufacture thereof

A process and apparatus for contacting reactants with a particulate catalyst while indirectly heating the reactants with a heat exchange medium improves temperature control by using an intermediate heat exchange fluid and system to prevent overheating of reactants and maintain parallel heating characteristics through multiple reaction-heat exchange zones. The internal flow path minimizes the circulation of the reaction zone heat exchange fluid by incorporating interstage reheating of the reaction zone heat exchange fluid as it passes in series flow. A particularly useful application of the process and apparatus is in the dehydrogenation of ethylbenzene to produce styrene. The process and apparatus can also be used with simultaneous exchange of catalyst particles by an operation that restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted.

Process and apparatus for controlling reaction temperatures with heating arrangement in series flow

An apparatus for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium amid simultaneous exchange of catalyst particles by an operation that sequentially restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted. The apparatus permits a change out of catalyst in a channel type reactor arrangement that would normally restrict catalyst flow during operation. Moving catalyst through a heat exchange type reactor having reactant and heat exchange channels permits control of catalyst activity as well as temperatures.

Apparatus for controlling reaction temperatures

A process and apparatus for contacting reactants with a particulate catalyst while indirectly heating the reactants with a heat exchange medium improves temperature control by using an intermediate heat exchange fluid and system to prevent overheating of reactants and maintain parallel heating characteristics through multiple reaction-heat exchange zones. The internal flow path minimizes the circulation of the reaction zone heat exchange fluid by incorporating interstage reheating of the reaction zone heat exchange fluid as it passes in series flow. A particularly useful application of the process and apparatus is in the dehydrogenation of ethyl benzene to produce styrene. The process and apparatus can also be used with simultaneous exchange of catalyst particles by an operation that restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted.

Process and apparatus for controlling reaction temperatures with heating

A process for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium amid simultaneous exchange of catalyst particles by an operation that sequentially restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted. The process permits a change out of catalyst in a channel type reactor arrangement that would normally restrict catalyst flow during operation. Moving catalyst through a heat exchange type reactor having reactant and heat exchange channels permits control of catalyst activity as well as temperatures.

Process for controlling reaction temperatures

A catalyst cooler arrangement for an FCC regenerator improves the operation of the cooler by the use of a full or partial screen arrangement at the cooler outlet of the regenerator to remove material that interferes with the operation of the cooler and especially the distribution of fluidizing gas within the cooler.

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Bartlett, IL, United States of America

Kevin J Brandner