Hydroprocessing reactor for catalytically dewaxing liquid petroleum feedstocks

Patent · Tue Aug 05 00:00:00 EDT 1986

OSTI ID:5373765

Chen, N Y; Degnan, T F

A hydroprocessing reactor for catalytically dewaxing liquid petroleum feedstocks is described which consists of: (a) a substantially vertical, open-bottom container having an inner and an outer wall defining an annular space therebetween, means for sealing the lower end of the annular space, and a central portion within the inner and outer walls; (b) vertically tiered trays mounted within the central portion of the container, and defining flow passageways intermediate the trays; a bed of crystalline aluminosilicate catalyst being supported on each of the trays; (c) inlet means at the upper end of the container for the infeed of liquid petroleum feedstock into the central portion of the container to cause the liquid feedstock to trickle downwardly through the catalyst beds and trays towards the open bottom end of the container; (d) inlet means at the upper end of the annular spaced for the infeed of hydrogen; apertures in the inner wall communicating the annular space with the lower portion of each of the catalyst beds to cause hydrogen to percolate upwardly through the catalyst bed on each tray and react with the liquid petroleum feedstock trickling downwardly therethrough and to strip low-boiling volatile conversion products from the liquid petroleum feedstock; (e) an inlet to the flow passageways, the inlet being located at the bottom end of the container for introducing an upwardly directed flow of inert carrier gas into the flow passageways, further including flow passage means providing flow communication with the inlet and the passageways whereby the carrier gas and the hydrogen gas with the entrained conversion products are conducted upwardly through the flow passageways and scavenged from the upper end of the container.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4604261
• OSTI ID: 5373765
• Resource Relation: Patent File Date: Filed date 29 Jun 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DEWAXING
CHEMICAL REACTORS
HYDROGENATION
PETROLEUM
ALUMINIUM SILICATES
ANNULAR SPACE
APERTURES
CATALYSTS
CONTAINERS
HYDROGEN
VOLATILE MATTER
WALLS
ALUMINIUM COMPOUNDS
CHEMICAL REACTIONS
CONFIGURATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATTER
NONMETALS
OPENINGS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SILICATES
SILICON COMPOUNDS
SPACE
020400* - Petroleum- Processing