Chevron U.s.a. Inc.

Craig Boyak

Krishniah Parimi

Abdenour Kemoun

Ralph Evans Killen

Zackory S Akin

Steven Xuqi Song

Steven Xugi Song

Steve Souers

Steven Alden Souers

Ralph Evan Killen

Zackory Akin

The present invention is directed to an upwardly convex fixed-bed catalyst support for a hydroprocessing reactor. The catalyst bed support includes an upwardly convex annular-shaped plate having an outer end in communication with the reactor inner surface, and an inner end in communication with a horizontal hub assembly.

Fixed-bed catalyst support for a hydroprocessing reactor

The present invention is directed to a vortex-type mixing device for a down-flow hydroprocessing reactor. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase and liquid phase of two-phase systems. According to the present invention, the mixing device helps create a highly arcuate flow to incoming effluents and a high degree of mixing within a constrained interbed space of a hydroprocessing reactor.

Vortex-type mixing device for a down-flow hydroprocessing reactor

Systems and apparatus for mixing, cooling, and distributing multiphase fluid mixtures within a reactor, wherein reactor internal apparatus of the present invention provides not only improved fluid mixing and distribution to each underlying catalyst bed surface, but also offers other advantages including: decreased mixing tray height; easier maintenance, assembly and disassembly; and decreased amounts of fabrication material. In an embodiment, fluid may be evenly distributed to a catalyst bed from a fluid distribution unit comprising a nozzle tray including a plurality of nozzles, wherein the nozzles include at least one liquid inlet disposed tangentially to an inner surface of the nozzle.

Multiphase contact and distribution apparatus for hydroprocessing

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El Cerrito, CA, United States of America

Craig Boyak