Method of processing low rank coal

Patent · Tue Sep 13 00:00:00 EDT 1983

OSTI ID:5718556

Matsuura, Y; Kamei, T; Komai, K; Kurihari, M; Nakamura, A; Wakabayashi, T

A method is disclosed of processing low rank coals which comprises steps of separating crushed low rank coals into middle sized lumps and minute particles, subjecting the middle sized lumps to a non-evaporating dehydration treatment to produce low moisture content coals, separating ash content from the minute particles and then at least partly liquefying the minute particles to produce liquefied oil with the low moisture content coals to thereby produce low moisture coal-oil slurry. The method makes it possible to utilize even small sized particles of coal in a practical manner.

• Assignee: Electric Power Development Co. (Japan); Kawasaki Jukogyo Kabushiki Kaisha (Japan)
• Patent Number(s): US 4403996
• OSTI ID: 5718556
• Resource Relation: Patent Priority Date: Priority date 10 Feb 1982, Japan; Other Information: PAT-APPL-347466
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BROWN COAL
DEASHING
DEHYDRATION
HYDRAULIC TRANSPORT
SORTING
FUEL SLURRIES
CHEMICAL PREPARATION
COAL LIQUIDS
COMMINUTION
FUEL OILS
MIXTURES
MOISTURE
CARBONACEOUS MATERIALS
COAL
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
LIQUID FUELS
LIQUIDS
MATERIALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SLURRIES
SUSPENSIONS
SYNTHESIS
TRANSPORT
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage
010402 - Coal
Lignite
& Peat- Purification & Upgrading