Report of a discussion on cracking of tar from low-temperature carbonization of brown coal

Technical Report · Fri Feb 23 04:00:00 EDT 1945

OSTI ID:5920083

Steffen,

Small-scale experiments actually carried out at Boehlen, not Poelitz, are described. The experiments investigated the cracking of tar in modified DHD apparatus using DHD catalyst 7360. The goal of the experiments was the production of a fuel meeting J2 standards, which included a solidifying point of less than -30/sup 0/C. The starting material (tar mixed with liquid product from processing tar in liquid-phase hydrogenation) had only 2% boiling up to 325/sup 0/C and 23% boiling up to 350/sup 0/C; it had 1.68% asphalt, 1.68% phenols, and very small quantities of ash, dust, and water. The liquid product from cracking had specific gravity at 30/sup 0/C of 0.924, 0.76% phenols, 0.42% asphalt, and a solidifying point of -23/sup 0/C; it had 6% (by weight) boiling up to 150/sup 0/C, 49% boiling up to 325/sup 0/C, and 35% boiling above 350/sup 0/C. Gasoline distilled from this liquid product had specific gravity at 20/sup 0/C of 0.739, 79% boiling up to 150/sup 0/C, and 96.5% boiling up to 200/sup 0/C. When the gasoline was mixed with middle oil, the result was a fuel meeting J2 specifications. It had specific gravity at 20/sup 0/C of 0.838, solidifying point of -31/sup 0/C, 1.32% phenols, 2.64% (by volume) aromatics, 10.0% olefins, no naphthenes, and 63.6% paraffins; it had 17.5% boiling up to 150/sup 0/C, 32% boiling up to 200/sup 0/C, and 94.5% boiling up to 320/sup 0/C. 2 tables.

• Research Organization: Hydrierwerke Poelitz, A.G. (Germany)
• OSTI ID: 5920083
• Report Number(s): TOM-75-1014-1018
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
BOILING POINTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL LIQUEFACTION PLANTS
COAL TAR
CRACKING
DATA
DATA COMPILATION
DECOMPOSITION
DEHYDROGENATION
EQUIPMENT
FEASIBILITY STUDIES
FUEL OILS
FUELS
GASOLINE
GERMANY
INDUSTRIAL PLANTS
INFORMATION
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE TESTING
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PRODUCTION
PYROLYSIS
RECOMMENDATIONS
SYNTHETIC FUELS
TAR
TESTING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE