Liquefaction process for solid carbonaceous materials containing alkaline earth metal humates

Patent · 01 January 1982

OSTI ID:864226

Epperly, William R ^[1]; Deane, Barry C ^[2]; Brunson, Roy J ^[3]

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1. Summit, NJ
2. East Brunswick, NJ
3. Buffalo Grove, IL

An improved liquefaction process wherein wall scale and particulate agglomeration during the liquefaction of solid carbonaceous materials containing alkaline earth metal humates is reduced and/or eliminated by subjecting the solid carbonaceous materials to controlled cyclic cavitation during liquefaction. It is important that the solid carbonaceous material be slurried in a suitable solvent or diluent during liquefaction. The cyclic cavitation may be imparted via pressure cycling, cyclic agitation and the like. When pressure cycling or the like is employed an amplitude equivalent to at least 25 psia is required to effectively remove scale from the liquefaction vessel walls.

• Assignee: Exxon Research & Engineering Co. (Florham Park, NJ)
• Patent Number(s): US 4332667
• OSTI ID: 864226
• Country of Publication: United States
• Language: English

Related Subjects

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25
agglomeration
agitation
alkaline
alkaline earth
amplitude
carbonaceous
carbonaceous material
carbonaceous materials
cavitation
containing
containing alkali
containing alkaline
controlled
cyclic
cycling
diluent
earth
earth metal
effectively
effectively remove
eliminated
employed
equivalent
humates
imparted
improved
improved liquefaction
liquefaction
liquefaction process
material
materials
materials containing
metal
particulate
pressure
pressure cycling
process
psia
reduced
remove
required
scale
slurried
solid
solid carbon
solid carbonaceous
solvent
subjecting
suitable
suitable solvent
vessel
vessel wall
vessel walls
via
wall
walls