Two-stage hydrotreating of a mixture of resid and light cycle oil

Patent · Tue Oct 28 04:00:00 EST 1986

OSTI ID:7148488

Myers, J W; Parrott, S L; Sughrue, E L

A process is described for the catalytic hydrotreating of a feed stream comprising a mixture of a resid and a light cycle oil comprising the steps of: contacting the feedstream in the absence of a catalyst primarily designed for hydrocracking under suitable hydrotreating conditions with at least one first catalyst composition. The composition comprises alumina and an amount of cobalt and molybdenum that promotes hydrotreating; and then contacting the thus treated feedstream under suitable hydrotreating conditions with at least one second catalyst composition comprising alumina and an amount of molybdenum and nickel that promotes hydrotreating. The total amount of nickel plus molybdenum of the at least one second catalyst composition exceeds the total amount of cobalt plus molybdenum of the at least one first catalyst composition thereby producing a product stream having an improved cetane index.

• Assignee: Phillips Petroleum Co., Bartlesville, OK
• Patent Number(s): US 4619759
• OSTI ID: 7148488
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COBALT COMPOUNDS
CRACKING
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCRACKING
MIXTURES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PYROLYSIS
REFRACTORY METAL COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
YIELDS