Sulfuric acid wash for prehydrogenation middle oils

Technical Report · Mon Oct 20 04:00:00 EST 1941

OSTI ID:5694330

This report was one-half page long and it talked about the new prehydrogenation catalyst. It said that in the prehydrogenation of bituminous- and brown-coal middle oils with the newly developed prehydrogenation catalyst 8376 (7846W250) easily benzinated middle oils were produced at 22 mV, though their aniline points were above the corresponding 5058 products. If it were desired to prehydrogenate weaker than with 5058, the middle oils had to be scrubbed first with 50% concentrated H/sub 2/SO/sub 4/ before they could be readily benzinated with 6434. The introduction of an H/sub 2/SO/sub 4/ wash was, therefore, essential to avoid disadvantages in hydrogen consumption, anti-knock properties of the gasoline and the yield of DHD gasolines with the introduction to the new prehydrogenation catalyst. The extenx of these disadvantages might be estimated in the processing of bitu minous-coal liquid-phase gasoline and middle oil with catalyst 8376 without an H/sub 2/SO/sub 4/ wash compared to processing with 5058: excess H/sub 2/ consumption, about 25 m/sup 3//ton of gasoline; octane number reduction, about 0.5; and loss of yield in DHD process, about 1%.

• OSTI ID: 5694330
• Report Number(s): TOM-273-25
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403 -- Coal & Coal Products-- Hydrogenation-- (-1987)
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ANTIKNOCK RATINGS
BERGIUS PROCESS
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CARBONACEOUS MATERIALS
CATALYSTS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
COMPARATIVE EVALUATIONS
CONSUMPTION RATES
CRYOGENIC FLUIDS
DATA
DATA COMPILATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASOLINE
GERMANY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGENATION
INFORMATION
INORGANIC ACIDS
LIQUEFACTION
NONMETALS
NUMERICAL DATA
PETROLEUM PRODUCTS
PRODUCTION
SCRUBBING
SULFURIC ACID
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES
YIELDS