Kellogg Brown + Root LLC

Kellogg Brown & Root LLC

Narinder Singh Duggal

Vijender Kumar Verma

Gautham Krishnaiah

Rahul Radhakrishna Pillai

John Lewis Webb, Jr

Brian Heasley

Matthew James Griffiths

Akhilesh Pratap

Rahul Saxena

Steve Arthur Tragesser

A system for processing a selected feedstock using a catalyst includes a reactor, a catalyst recovery system, and a conduit. The reactor receives the catalyst and the selected feedstock. A reaction between the selected feedstock and the catalyst generates a spent catalyst. The catalyst recovery system processes the spent catalyst. The conduit connects the reactor to the catalyst recovery system and has a lateral section. The spent catalyst flows from the reactor through a flow space defined by an inner wall of the lateral section to the catalyst recovery system. The system also includes a fluidizer positioned at the lateral section. The fluidizer includes at least one nozzle. The at least one nozzle is completely inside the flow space. The at least one nozzle forms and directs a jet of a fluidizing agent into the spent catalyst in the lateral section.

Fluidization of catalyst in lateral sections of a system

Methods and systems for treating an olefin-containing stream are disclosed. The disclosed methods and systems are particularly suitable for treating an off-gas stream in a refining or petrochemical process, such as from a fluid catalytic cracker (FCC), coker, steam cracker, and the like. The stream is treated in an absorber column to reject lighter stream components and to absorb ethylene and/or propylene into a solvent. The solvent is typically isobutane. The enriched solvent stream from the absorber column is fed to an alkylation reactor, which reacts the dissolved olefin with the isobutane solvent to produce an alkylate product.

Recovery of light olefins from dry hydrocarbon gas from refinery and petrochemical production processes for production of alkylate

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Haryana, India

Narinder Singh Duggal