Uop Lcc

James W Althoff

Paolo Palmas

Richard A Johnson, Ii

David A Lomas

Zhanping Xu

Daniel N Myers

Trung S Pham

Michael S Sandacz

Daniel Robert Johnson

Mohammad-Reza Mostofi-Ashtiani

Quan Yuan

Sujay R Krishnamurthy

Sanford Allan Victor

Michael A Stine

Patrick D Walker

Roger L Throndson

Steven Niewiedzial

Raymond E Tucker

Todd P Mitchell

James A Fandel

Stephanie Fuyue Li

Mark A La Vine

Melvin Paden

Heat exchangers (also referred to as exchangers herein) are provided that fit within a bottom sump of a distillation column. These heat exchangers may be at least partially submerged in the bottoms fluid of the distillation column so that the exterior surface of the heat exchanger can contribute to the total area of the heat exchanger. The internal configuration of the exchanger allows for annular coaxial flow of the hot fluid (condensing vapor stream) and eliminates the need for top and bottom channel heads.

Vapor distribution system in a concentric reboiler

A process and apparatus of a gas-solids separator are provided in which a cap is disposed across an upstream end of swirl blades in a cyclonic separator to protect the blades from erosion by fast traveling solids.

Apparatus and process for gas-solids separation

A baffle is installed on the wall of a regenerator vessel to push catalyst away from the wall to ensure adequate exposure to regeneration gas and complete combustion of coke from the catalyst. We have found that in deep beds, catalyst can flow down the walls and escape sufficient exposure to regeneration gas and undergo too little regeneration.

Apparatus for regenerating catalyst

Methods and apparatuses for regenerating catalysts and methods of inhibiting corrosion in catalyst regenerating apparatuses are provided. An exemplary apparatus includes: a metal vessel configured to receive a spent catalyst stream and contact at least a portion of the spent catalyst stream with an oxygen containing environment at a sufficiently high temperature to burn coke present in the spent catalyst stream; a refractory material overlying at least a portion of an inner surface of the metal vessel; and a corrosion inhibiting material in contact with at least a portion of the inner surface of the metal vessel and disposed between the inner surface and at least a portion of the refractory material, wherein the corrosion inhibiting material is heat stable at a temperature of at least up to about 400&#xb0; F. (about 204&#xb0; C.) and inhibits contact of an acid environment with the inner surface of the metal vessel.

Catalyst regenerating methods and apparatuses and methods of inhibiting corrosion in catalyst regenerating apparatuses

A regenerator for an FCC apparatus. The regenerator includes a riser inside of a shell. The riser includes a cone and a cone skirt. An annulus is formed between the riser and the shell. A sealing system for keeping catalyst out of a portion of the annulus comprises a first sealing element and a second sealing element disposed above the second sealing element. The second sealing element comprises a ring having one or more plates being movable to accommodate the thermal expansion of the riser.

Sealing system for a fluid catalyst cracking regenerator

Disclosed is an apparatus for injecting a plurality of uniform jets into an extended dispersion of moving catalyst particles within a reactor vessel. The apparatus comprises a plurality of outer conduits each for carrying atomizing fluid. A plurality of tips in the outer conduits each include a plurality of orifices for spraying a mixture of feed and atomizing fluid. Inner conduits with outlets within the outer conduits delivers feed to the tips of the outer conduits.

Distribution apparatus for contact of hydrocarbon compounds with particles

An FCC separation arrangement for a catalyst and hydrocarbon contacting zone having a downcomer terminus section uses a compact separation vessel to provide a quick separation between catalyst and hydrocarbon gases in a compact area that also accommodates the use of cyclone separators for a further removal of catalyst from the hydrocarbon gases. The separation system uses a gas collection conduit that incorporates an expansion element for accommodating differential growth between the riser separation vessel and cyclones in the same compact area. The system is suitable for single downcomers or multiple downcomers. The system can be used with a closed containment vessel or in an entirely open system that eliminates the use of a containment vessel.

Contained separation system for FCC reaction downcomer

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Chicago, IL, United States of America

James W Althoff