Exchange of experiences between Gelsenberg and Poelitz on March 27 and 28, 1944 (in German)
Information is included on various topics, including analyses of coal paste for fineness of grinding and percentage of solids, and on residue processing. It was reported that increased fineness of grinding of brown coal could increase the percentage decomposition of the coal from 97.7 to 98.8% and increase yields of products from 0.26 to 0.30 kg/liter/hr. The percentage of solids in coal or intermediate products of hydrogenation had been determined by use of a solvent such as benzene. However, benzene could give inaccurate information for asphalt-rich substances and a better solvent might be a heavy oil from the hydrogenation process itself. The catalysts used in the liquid phase at some of the coal-liquefaction plants are mentioned. Gelsenberg used 1.8% Bayermasse (impure iron oxide), 1.2% iron sulfate, and 0.3% Sulfigran (sodium sulfide). Two tables compared the characteristics of the coals used and products and residues obtained at Poelitz and Gelsenberg in the liquid phase. Gelsenberg used a coal with higher carbon content (83.0 vs. 81.1%) and lower oxygen content (9 vs. 12%) than did Poelitz. Gelsenberg generally had slightly higher percentage of solids in residues and pasting oil than did Poelitz (about 22 and about 9 vs. about 20 and about 6%), but the percentage of those solids made up of ash was much higher at Gelsenberg (about 63 and 60 vs. about 45 and 30%). In centrifuging of residues, Gelsenberg generally added more oil to the centrifuge mixture (about 450 t oil/1000 t residues vs. about 400 t oil/1000 t residues). Centrifugation gave about 81.5% oil and 18.5% residue at Gelsenberg vs. about 72 to 76% oil and 28 to 24% residues at Poelitz.
- Research Organization:
- Hydrierwerke Poelitz, A.G. (Germany)
- OSTI ID:
- 6369249
- Report Number(s):
- TOM-75-539-542
- Country of Publication:
- United States
- Language:
- German
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Related Subjects
BROWN COAL
GRINDING
SIZE
COAL
CHEMICAL COMPOSITION
HYDROGENATION
COAL LIQUEFACTION PLANTS
CATALYSTS
NORMAL-MODE ANALYSIS
RESIDUES
TECHNOLOGY TRANSFER
COAL LIQUIDS
PHYSICAL PROPERTIES
SOLVENT PROPERTIES
PROCESSING
ASHES
ASPHALTS
BERGIUS PROCESS
CENTRIFUGATION
COMPARATIVE EVALUATIONS
DATA COMPILATION
GERMANY
HIGH PRESSURE
HIGH TEMPERATURE
QUANTITY RATIO
SYNTHETIC FUELS
TABLES
YIELDS
BITUMENS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COMMINUTION
DATA
DATA FORMS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
INFORMATION
LIQUEFACTION
MACHINING
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
TAR
THERMOCHEMICAL PROCESSES
010403* - Coal & Coal Products- Hydrogenation- (-1987)