Process for the removal of polynuclear aromatic hydrocarbon compounds from admixtures of liquid hydrocarbon compounds

Patent · Tue Aug 26 00:00:00 EDT 1986

OSTI ID:5228395

Hudson, C W; Hamner, G P

A process is described for removing polynuclear aromatic hydrocarbons from a feed characterized as a molecular admixture of polynuclear aromatic hydrocarbon-containing hydrocarbons having a high end boiling point below about 540/sup 0/C (1004/sup 0/F) a sulfur level below about 5000ppm, and nitrogen level below about 5000 ppm. The process consists of contacting the feed, in the presence of hydrogen, over a catalyst comprised of elemental iron and one or more alkali or alkaline-earth metals components at a temperature ranging from about 225/sup 0/C (437/sup 0/F) to about 430/sup 0/C (806/sup 0/F) and hydrogen partial pressure ranging from about 0 psig to about 1000 psig sufficient to hydrogenate and hydrocrack the polynuclear aromatic hydrocarbon molecules of the molecular hydrocarbon admixture without excessively hydrogenating and hydrocracking the non-polynuclear aromatic hydrocarbon molecules of the feed.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4608153
• OSTI ID: 5228395
• Resource Relation: Patent File Date: Filed date 31 Jul 1985
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POLYCYCLIC AROMATIC HYDROCARBONS
HYDROCRACKING
HYDROGENATION
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BOILING POINTS
CATALYSTS
HIGH TEMPERATURE
HYDROGEN
IRON COMPOUNDS
LOW PRESSURE
MEDIUM PRESSURE
MIXTURES
NITROGEN
PARTIAL PRESSURE
QUANTITY RATIO
SULFUR CONTENT
AROMATICS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DISPERSIONS
ELEMENTS
HYDROCARBONS
NONMETALS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PYROLYSIS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)