Toluene from DHD gasoline

Technical Report · Wed Nov 04 04:00:00 EDT 1942

OSTI ID:5152826

Simon, W

This letter described an experiment run to compare the properties of a typical DHD gasoline from Poelitz to the properties of the same material after toluene had been removed from it. In the experiment, the fraction of the gasoline boiling from 90/sup 0/C to 120/sup 0/C was distilled out of it and then dehydrogenated under aromatizing conditions. The resulting mixture had toluene distilled out of it. Finally, all fractions except toluene and lost gas from both distillations were recombined. The yield was about 12% toluene and 83% recombined gasoline by weight, with about half of the lost gases being usable as gaseous fuel. The recombined gasoline had properties which were as good as or better than the original gasoline. For instance, both gasolines had distillation cutoff of about 160/sup 0/ and aromatic content of 50%; both had about the same octane numbers before (80.6 for the old vs. 80.9 for the new) and after (92.8 for the old vs. 93.0 for the new) addition of 0.12% lead; both had about the same specific gravity at 15/sup 0/C (0.777 for the old vs. 0.775 for the new); and the new gasoline had 54% boiling up to 100/sup 0/C vs. 51% for the old. It was suggested that the results of the experiment might lead to changes of procedure in the dehydrogenation process to allow for removal of toluene as a standard part of the procedure. For example, the first stage of dehydrogenation might be operated to give a higher aromatics content. The letter was supposed to have an overload curve enclosed, but it was missing in the version abstracted.

• Research Organization: I.G. Farbenindustrie, Ludwigshafen (Germany)
• OSTI ID: 5152826
• Report Number(s): TOM-251-713-714
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010500 -- Coal
Lignite
& Peat-- Products & By-Products
ANTIKNOCK RATINGS
AROMATICS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COMPARATIVE EVALUATIONS
DEHYDROGENATION
DENSITY
DISTILLATION
FUELS
GASOLINE
HIGH TEMPERATURE
HYDROCARBONS
LIQUEFACTION
MEDIUM PRESSURE
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PRODUCTION
SEPARATION PROCESSES
TOLUENE