Conference in Welheim at Ruhroel G. m. b. H. on March 26 and 27, 1941 on evaluation of aromatization processes

Technical Report · Fri Mar 28 04:00:00 EST 1941

OSTI ID:7297115

Donath, E

Similarities and differences between the procedures followed by I. G. Farbenindustrie and by Ruhroel G.m.b.H. in evaluating results of experiments and production runs for aromatization of middle oils from coal are discussed. A table giving comparative data on experiments run at the two plants on the same middle oil furnished by Scholven is included. One of the principal differences in evaluation procedures for experiments was that the plants calculated percentages of gas formation differently, in that Welheim calculated it on a basis of gaseous hydrocarbons and Ludwigshafen calculated it on a basis of carbon content. Also Welheim left about 2% butane in the gasoline, so the percentage of gas formation was somewhat different. In production runs, Welheim used even a third metod of calculation, which seemed to the people from Ludwigshafen to give a percentage figure which was too small. Finally, there was a general discussion of the relative merits of the Welheim 300-atm. one-step aromatization process versus the I. G. 700-atm., two-step refining and dehydrogenation process using catalysts 5058 and 6434. The Welheim process produced from coal a gasoline with 45% to 50% aromatic by volume and an octane number such that by addition of about 10% ET 110, it could easily satisfy aviation gasoline requirements; the same process should give high yields from coal middle oils. In terms of quality, aromatization gasolines from liquefaction middle oils were not as good as those from pitch middle oils, which were about equal to DHD gasolines from coal liquefaction. DHD yields were still smaller than those for aromatization, but experiments indicated that thety could be increased to similar levels. 1 table

• Research Organization: I.G. Farbenindustrie, Ludwigshafen (Germany)
• OSTI ID: 7297115
• Report Number(s): TOM-254-001-004
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ANTIKNOCK RATINGS
AROMATIZATION
BITUMINOUS COAL
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DATA COMPILATION
DEHYDROGENATION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
GASOLINE
GERMANY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INFORMATION
LIQUEFACTION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PITCHES
PROCESSING
PRODUCTION
REFINING
TABLES
TESTING
YIELDS