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Processing of bituminous coal-liquefaction middle oils to aromatic gasoline over catalyst 7019 L8 (in German)

Technical Report ·
OSTI ID:6122084
This large-scale experimental run was intended to see if the catalyst above could produce an aromatic gasoline of quality at least equal to that of the standard 100-octane aviation gasoline in use at the time. The experiment was carried out in modified 700-atm apparatus, although it was done at 300 atm, and the industrial process was to be done at 300 atm. This caused some details of the results, especially in terms of heat balances and flows, etc., to be different from what would be experienced in regular industrial operation, but in spite of that, the experiment was valid overall and was quite successful. The resulting gasoline (CV/sub 2/b), when treated with tetraethyl lead, outperformed the standard gasoline (Cl). The experiment was carried out in a 760-liter oven at 300 atm overall pressure (above 240 atm hydrogen partial pressure), average oven temperature of 507/sup 0/C, throughput of 1 kg/liter/hr, recycling ratio (new starting material: recycled material) varying from 1:3 to 1:1, but mostly being 2:3, total gas usage of 2.6 m/sup 3//kg of material injected, and wash oil volume of 600 liters/1000 m/sup 3/ of gas. The gasoline was distilled up to 160/sup 0/C, giving a yield of 0.28 to 0.30 kg/liter/hr, and making up 28% to 32% of the liquid product. The gasoline had specific gravity 0.794, aromatic content of 53%, and leaded octane number of 99 by the research method (unleaded 88) and 90 by the motor method (unleaded 76.5). Losses to gasification amounted to about 21%. The report gave extensive information on day-by-day operations and product analyses, heat flows and balances, etc. 14 tables, 9 figures.
Research Organization:
I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
OSTI ID:
6122084
Report Number(s):
TOM-75-688-737
Country of Publication:
United States
Language:
German