Catalyst regeneration apparatus

Patent · Tue Aug 18 04:00:00 EDT 1987

OSTI ID:6095220

Greenwood, A R

This patent describes an apparatus for effecting regeneration of spent catalyst particles used in hydrocarbon conversion reactions comprising: (a) a vertically-positioned vessel having a catalyst inlet and catalyst outlet, through which catalyst particles may move by gravity from the inlet to the outlet; (b) two vertical cylindrical catalyst retention screens having differing diameters which extend substantially throughout the burn-off zone; (c) the halogenation zone, which includes a cylindrical wall having a lower end, the cylindrical well being spaced from the outer wall of the vessel to define an annular chamber which distributes halogenation gas about the lower end of the cylindrical wall; (d) the drying zone, which is located below the halogenation zone and is comprised of a lower portion containing catalyst, an upper portion devoid of catalyst, an inlet means for dry hot air, and means to distribute dry hot air about the lower portion of the drying zone such that it passes upward through the catalyst located in the drying zone.

• Assignee: UOP Inc., Des Plaines, IL
• Patent Number(s): US 4687637
• OSTI ID: 6095220
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AIR FLOW
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTIONS
CONTAINERS
CRACKING
DECOMPOSITION
DRYING
ELEMENTS
FLUID FLOW
GAS FLOW
HALOGENATION
HALOGENS
HYDROCARBONS
NONMETALS
ORGANIC COMPOUNDS
PIPES
PYROLYSIS
REGENERATION
THERMOCHEMICAL PROCESSES