Exxonmobil Research and Engineering Company

John W Viets

Mohsen N Harandi

David Lawrence Stern

John Di-Yi Ou

Narasimhan Sundaram

Bal K Kaul

Benjamin S Umansky

Steven S Lowenthal

Stacey Erin Johnson

Julian A Wolfenbarger

Systems and methods for hydrogen production with carbon capture are provided. A hydrogen containing stream can be divided so that a portion of the stream is processed for separation of CO. A hydrogen enriched stream formed during separation of COand another portion of the hydrogen containing stream can be processed in a cycling adsorber unit to form a hydrogen product stream. Optionally, the cycling adsorber unit can be operated to form a plurality of tail gas streams. The hydrogen containing stream can be a reformed hydrocarbon stream and/or an input stream previously exposed to a water gas shift catalyst. Optionally, a portion of the reformed hydrocarbon stream can be a reformed biocomponent stream.

Hydrogen production with carbon capture

Hydrogen can be recovered in a refinery network using a combination of a cycling adsorber unit and a membrane separation unit. A membrane separation unit can be used to generate at least a portion of the purge hydrogen stream for the cycling adsorber unit. This can reduce the portion of the hydrogen product stream from the cycling adsorber unit required for regeneration of the adsorbent.

Hydrogen utilization within a refinery network

An improved process for hydrocracking heavy petroleum feedstocks wherein hydrogen-containing streams associated with a hydrocracker are subjected to rapid cycle pressure swing adsorption having a cycle time of less than 30 S.

Hydrocracking of heavy feedstocks with improved hydrogen management

Growing community of inventors

Fairfax Station, VA, United States of America

John W Viets