Process for upgrading a contaminated absorbent oil

Patent · Tue Feb 04 04:00:00 EST 1986

OSTI ID:5923278

Richmond, R P

In a fractionation process comprising an absorption zone, a hydrocarbonaceous absorbent oil having an atmospheric pressure boiling point ranging from about 650/sup 0/F to about 1050/sup 0/F is introduced to contact hydrocarbonaceous vapors containing a contaminant selected from the group consisting of sulfur, nitrogen and mixtures to remove at least a portion of the contaminant from the hydrocarbonaceous vapors. This process produces an absorbent hydrocarbonaceous oil containing the contaminant and withdrawing the absorbent hydrocarbonaceous oil containing the contaminant from the absorption zone. The improvement described in this patent consists of contacting the withdrawn absorbent hydrocarbonaceous oil having a boiling point ranging from about 650/sup 0/F to about 1050/sup 0/F containing the contaminant with a hydrorefining catalyst in the presence of hydrogen in a hydrorefining zone at hydrorefining conditions to produce an upgraded absorbent oil having a decreased amount of the contaminant, and recycling the upgraded absorbent oil to the absorption zone.

• Assignee: NOV; EDB-86-076951
• Patent Number(s): US 4568452
• OSTI ID: 5923278
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ABSORPTION
ATMOSPHERIC PRESSURE
BOILING POINTS
CATALYSIS
CHEMICAL REACTIONS
DENITRIFICATION
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FRACTIONATION
FUELS
GASES
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
NITROGEN
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
PROCESSING
PURIFICATION
RECYCLING
REFINING
REGENERATION
SEPARATION PROCESSES
SORPTIVE PROPERTIES
SULFUR
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VAPORS