Letter concerning liquid-phase catalyst for Poelitz (for processing pitch)

Technical Report · Tue Feb 11 04:00:00 EST 1941

OSTI ID:6122095

Pier, M

Apparently Poelitz had had a supply of pitch to be hydrogenated and had wondered about which catalyst to use for it since they could no longer use the molybdenum catalyst. Dr. Pier described experiments run by Ludwigshafen about that question. The experiments had showed that a catalyst consisting of iron on carbonization coke could be effective under the conditions described, in which tar and tar residues were mixed with pitch. He suggested using a throughput of 0.5 kg/liter/hr and recycling of heavy oil in the ratio 1:0.25, in order to be able to keep the oven under control at the high temperatures necessary for breakdown of the solid components and asphalts. Dr. Pier suggested starting each run with a mixture just of the tar (from a gas generator) and tar oil residues, and then gradually adding the pitch to the starting mixture, up to a content of about 50% if desired and if the amounts of tar were reduced somewhat. Ludwigshafen had used the catalyst in the amount of 2% of the starting materials. Dr. Pier suggested that if there were more pitch than could be mixed with the amount of tar and residues available, the excess pitch could later be processed together with coal.

• Research Organization: I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
• OSTI ID: 6122095
• Report Number(s): TOM-75-669-670
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403 -- Coal & Coal Products-- Hydrogenation-- (-1987)
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BERGIUS PROCESS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
COKE
EVALUATION
FLOW RATE
FUELS
GERMANY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INDUSTRIAL PLANTS
IRON COMPOUNDS
LIQUEFACTION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PITCHES
QUANTITY RATIO
RESIDUES
SYNTHETIC FUELS
TAR
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS