Liquefaction process for solid carbonaceous materials containing alkaline earth metal humates

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864226

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

---

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.

• DOE Contract Number: E(49-18)-2353
• 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

liquefaction
process
solid
carbonaceous
materials
containing
alkaline
earth
metal
humates
improved
wall
scale
particulate
agglomeration
reduced
eliminated
subjecting
controlled
cyclic
cavitation
material
slurried
suitable
solvent
diluent
imparted
via
pressure
cycling
agitation
employed
amplitude
equivalent
25
psia
required
effectively
remove
vessel
walls
containing alkali
materials containing
vessel wall
suitable solvent
carbonaceous materials
liquefaction process
alkaline earth
carbonaceous material
solid carbonaceous
earth metal
solid carbon
vessel walls
pressure cycling
improved liquefaction
containing alkaline
effectively remove
/208/