Hydrotreating process using porous mullite

Patent · Tue Dec 13 04:00:00 EST 1988

OSTI ID:6385498

Speronello, B K

This patent describes a process for treating heavy hydrocarbon oil which contains heavy metals and/or sulfur comprising contacting the oil with hydrogen in the presence of a catalyst and recovering a hydrocarbon product having reduced content of heavy metals and/or sulfur, the improvement which comprises using as the catalyst one or more catalytic metals of the group consisting of cobalt, nickel, molybdenum and tungsten impregnated on porous supporting bodies consisting essentially of mullite crystals, and optionally free silica, the bodies having a molar ratio of Al/sub 2/O/sub 3//SiO/sub 2/ in excess of 0.50 and up to about 1.65 and having few, if any pores <100 A in diameter and up to about 0.4 cc/g of pores having diameters >600 A, the porous supporting bodies having been prepared by the method comprising calcining bodies of kaolin clay at a temperature in the range of about 1150/sup 0/C to about 1350/sup 0/C until the clay is converted into mullite and free silica, leaching the resulting bodies of calcined clay with an alkaline aqueous solution to remove at least a portion of the free silica, washing the leached clay bodies to remove alkali ions, drying and then recovering the resulting porous supporting bodies consisting essentially of mullite crystals.

• Assignee: Engelhard Corp., Edison, NJ
• Patent Number(s): US 4790929
• OSTI ID: 6385498
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKALINE EARTH METAL COMPOUNDS
CALCINATION
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CLAYS
COBALT COMPOUNDS
DECOMPOSITION
DRYING
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGENATION
INORGANIC ION EXCHANGERS
ION EXCHANGE
ION EXCHANGE MATERIALS
KAOLIN
MATERIALS
METALS
MINERALS
MOLYBDENUM COMPOUNDS
MULLITE
NICKEL COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POROSITY
PYROLYSIS
REFRACTORY METAL COMPOUNDS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SULFUR CONTENT
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
VERY HIGH TEMPERATURE