Report on the position of the research work for deashing and carbonization of brown coal

Technical Report · Mon May 20 04:00:00 EDT 1940

OSTI ID:6984812

Geissler,

Two processes were described, one for the production of metallurgical coke and one for a coke used as a charcoal replacement. For the carbide coke, a run-of-the-mine brown coal, Hermine Henriette II, with a salty ash, was processed. The procedure was to reduce the ash content from 12% to 0.7% in the coal, with a resulting coke with 3% ash. The coal was reduced in size to 1 to 1.5 mm in a roller mill, then mixed with the acidic water from the final wash steps. This suspension was separated from its ash in a stirred tank separator where heavier sand was drawn off the bottom and deashed coal slurry came from the side. The clarified wash water was taken from the top. The coal then entered another tank separator where 30% HCl and water were added, stirred, and separated. A suction filter removed all but 40% of the water. Binding tar and wash water was then added and mixed before a series of 4 kneading machines kneaded the mixture, and decanted the water to be recycled back to the first step. The coal was subsequently briquetted, dried, and coked. For the production of a coke as a charcoal replacement, the ash removal was carried out similarly through the two sink-separators. Oil was added, mixed, and stirred while directly adding steam to maintain 70/sup 0/C. This suspension was filtered and the cake dried to 10% water. After briquetting the coal of 1.7% ash, it was carbonized at 600/sup 0/C. A complete cost analysis was made for a 20,000 tons a year production. 4 flowsheets.

• Research Organization: Corporate Unverified
• OSTI ID: 6984812
• Report Number(s): TOM-286-154-167B
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010400* -- Coal
Lignite
& Peat-- Processing
010401 -- Coal & Coal Products-- Carbonization-- (-1987)
ACIDIFICATION
ADSORBENTS
ASHES
BRIQUETS
BRIQUETTING
BROWN COAL
CARBIDES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONIZATION
CHARCOAL
CHEMICAL REACTIONS
CLEANING
COAL
COAL PREPARATION
COAL PREPARATION PLANTS
COAL TAR
COKE
COKING
COMMINUTION
COMPRESSION
COST
DATA COMPILATION
DEASHING
DECOMPOSITION
DENSITY
DIAGRAMS
ENERGY SOURCES
EQUIPMENT
FABRICATION
FILTERS
FILTRATION
FLOWSHEETS
FOSSIL FUELS
FUEL OILS
FUELS
GRINDING MACHINES
HIGH TEMPERATURE
INDUSTRIAL PLANTS
MACHINE TOOLS
MOLDING
NORMAL-MODE ANALYSIS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PROCESSING
PRODUCTION
PUMPS
QUANTITY RATIO
REMOVAL
RESIDUES
SEPARATION PROCESSES
SOLID FUELS
SOLUBILITY
STEAM
TAR
WASHING