Liquefaction with microencapsulated catalysts

Patent · Tue May 21 00:00:00 EDT 1985

OSTI ID:6364379

Weller, S W

A method is disclosed for dispersing a liquefaction catalyst within coal or other carbonaceous solids involves providing a suspension in oil of microcapsules containing the catalyst. An aqueous solution of a catalytic metal salt is emulsified in the water-immiscible oil and the resulting minute droplets microencapsulated in polymeric shells by interfacial polycondensation. The catalyst is subsequently blended and dispersed throughout the powered carbonaceous material to be liquefied. At liquefaction temperatures the polymeric microcapsules are destroyed and the catalyst converted to minute crystallites in intimate contact with the carbonaceous material.

• Assignee: Dept. of Energy
• Patent Number(s): US 4518478
• OSTI ID: 6364379
• Resource Relation: Patent File Date: Filed date 23 May 1984; Other Information: PAT-APPL-612953
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CATALYSTS
ENCAPSULATION
COAL LIQUEFACTION
AQUEOUS SOLUTIONS
CAPSULES
CHLORIDES
METALS
PARTICLE SIZE
PETROLEUM
POLYMERS
POWDERS
SUSPENSIONS
CHLORINE COMPOUNDS
CONTAINERS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
LIQUEFACTION
MIXTURES
SIZE
SOLUTIONS
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction