초록 ▼

Residual oil fractions are upgraded in that CCR is selectively removed without undue hydrogen consumption by hydroprocessing with a catalyst comprises a single metal such as molybdenum, tungsten, nickel, iron or palladium or multimetallic combination of such metals, excluding, however, active desulf

Residual oil fractions are upgraded in that CCR is selectively removed without undue hydrogen consumption by hydroprocessing with a catalyst comprises a single metal such as molybdenum, tungsten, nickel, iron or palladium or multimetallic combination of such metals, excluding, however, active desulfurization compositions such as nickel molybdenum and nickel-tungsten. Said catalyst is characterized as having greater than about 50% of its pore volume contribution in pores having diameters in the range of between about 100 and 200 Angstroms. The product of such hydroprocessing is a particularly preferable feedstock for coking to give more liquid yield and less coke make.

대표청구항 ▼

A process of upgrading a hydrocarbon oil fraction which comprises contacting a hydrocarbon oil fraction with hydrogen and a catalyst at conversion conditions including a temperature of from about 650°F. to about 850°F., a pressure of from about 1000 psig to about 3000 psig, a liquid hourly space vel

A process of upgrading a hydrocarbon oil fraction which comprises contacting a hydrocarbon oil fraction with hydrogen and a catalyst at conversion conditions including a temperature of from about 650°F. to about 850°F., a pressure of from about 1000 psig to about 3000 psig, a liquid hourly space velocity of from about 0.5 to about 4 and a hydrogen circulation rate of from about 1000 scf/bbl to about 20,000 scf/bbl, said catalyst comprising a porous inorganic refractory support having greater than about 50% of its pore volume contribution in pores having diameters of from about 100 to about 200 Angstroms and at least about 30% of its pore volume contribution in pores having diameters of from about 0 to about 50 Angstroms, said support having deposited thereon a metal or combination of metals, oxides, sulfides or oxysulfides thereof, said metal or combination of metals being selected from the group consisting of molybdenum, tungsten, iron, cobalt, nickel, palladium, molybdenum-tungsten, molybdenum-iron, molybdenum-palladium, tungsten-iron, tungsten-cobalt, tungsten-palladium, iron-cobalt, iron-nickel, iron-palladium, cobalt-nickel, cobalt-palladium and nickel-palladium, whereby the Conradson Carbon Residue of said fraction is selectively reduced.