Two-stage co-processing of coal/oil feedstocks

Patent · Tue Aug 01 04:00:00 EDT 1989

OSTI ID:5395111

MacArthur, J B; McLean, J B; Comolli, A G

This patent describes a two-stage continuous process for catalytic hydroconversion of a fluid blend of a solid carbonaceous material and heavy hydrocarbon liquid. It comprises: mixing a solid carbonaceous particulate material with sufficient heavy hydrocarbon liquid having at least about 90 V% normally boiling above 650{sup 0}F to provide a flowable slurry mixture; feeding the flowable slurry mixture with hydrogen into a first stage back-mixed catalytic reaction zone containing an ebullated catalyst bed of particulate hydrogenation catalyst. The reaction zone having an internal liquid recycle. The catalyst containing an active metal component. The catalyst bed being maintained at 650{sup 0}-800{sup 0}F temperature, 1000-4000 psig hydrogen partial pressure and feed rate of 10-100 lb carbonaceous material plus heavy hydrocarbon liquid feed per hour per ft/sup 3/ reaction zone volume for hydrogenation reaction; passing the total effluent material from the first stage reaction zone with additional hydrogen directly to a close-coupled second stage back-mixed catalytic reaction zone containing an ebullated catalytic reaction zone containing an ebullated catalyst bed so as to avoid forming retrograde materials in the effluent; passing the resulting effluent material form the second stage reaction zone to successive phase separation and distillation steps to separate the gas material fraction; and removing unconverted coal and ash solids material and a heavy hydrocarbon bottoms liquid material, and thereby producing low-boiling hydrocarbon liquid products normally boiling between 150{sup 0}F and 975{sup 0}F.

• Assignee: HRI, Inc., Lawrenceville, NJ
• Patent Number(s): US 4853111
• Application Number: PPN: US 6889587A
• OSTI ID: 5395111
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
02 PETROLEUM
020400 -- Petroleum-- Processing
CARBONACEOUS MATERIALS
CATALYSTS
CHEMICAL REACTIONS
COAL
DEASHING
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUEL SLURRIES
FUELS
HYDROGEN
HYDROGENATION
MATERIALS
MIXTURES
NONMETALS
PETROLEUM
SLURRIES
SUSPENSIONS