Regeneration of isomerization catalysts containing magnesium oxide

Patent · Tue Aug 12 04:00:00 EDT 1980

OSTI ID:7038262

Montgomery, D P

A magnesium oxide-containing catalyst which has been used to isomerize butene-2 to butene-1 is regenerated at a localized bed temperature to not exceed about 1000/sup 0/F, preferably not to exceed about 900/sup 0/F, by steps involving purging the catalyst with an inert gas, then admixing with said gas oxygen or oxygen-containing gas to produce a final mixture to contain not more than about 0.5 volume percent O/sub 2/, and passing said mixture through the catalyst, controlling flow of the mixture to maintain the catalyst at a localized temperature not exceeding substantially about 1000/sup 0/F, preferably not exceeding about 900/sup 0/F, increasing the O/sub 2/ content of the mixture gradually, but not sufficiently to substantially exceed said temperature of about 1000/sup 0/F, preferably 900/sup 0/F, continuing to pass said mixture through the catalyst until substantially no more carbon oxides are detected in the gas exiting the catalyst, arresting flow of oxygen to the catalyst, continuing to pass said inert gas through the catalyst until substantially all O/sub 2/ has been purged therefrom, then purging said catalyst to prepare it for isomerization use.

• Assignee: Phillips Petroleum Co
• Patent Number(s): US 4217244
• OSTI ID: 7038262
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200* -- Inorganic
Organic
& Physical Chemistry
400300 -- Organic Chemistry-- (-1987)
ALKALINE EARTH METAL COMPOUNDS
ALKENES
BUTENES
CARBON COMPOUNDS
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HIGH TEMPERATURE
HYDROCARBONS
INERT ATMOSPHERE
ISOMERIZATION
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
REGENERATION