Direct gasoline production from liquefaction middle oil of bituminous coal over catalyst 6434 at 660 atm

Technical Report · Wed Apr 16 04:00:00 EST 1941

OSTI ID:6728782

Reitz,

Experiments to compare the gasoline product resulting from two different production methods were summarized in this report. Liquefaction middle oil from Scholven bituminous coal was used to produce 87-octane ''L'' gasoline. One method, the direct, ''one-step'' process, eliminated the prehydrogenation stage, but used catalyst 6434 at 600 atm and at 26 Mv temperature. Compared to the usual two-step method (200 to 250 atm), the one-step method produced higher volumes of gasoline (0.6 kg/liter/hr vs 0.5 kg/liter/hr) and had somewhat lower losses to gasification (about 14% vs 17% C/sub 1/--C/sub 4/ hydrocarbons). The disadvantages of the one-step procedure were lower butane and iso-butane concentration (about 40% lower), a lower degree of branching in the paraffins, and a lower sensitivity to lead-additive improvement of octane number. The experimental procedure described how a balance was reached between high gas volume (through-put volumes) and aromatics content. The two-step process could, however, be run at 700 atm over catalyst 6434 to obtain the same advantages of gasification vs gasoline content. The mixture gasoline product from prehydrogenation and from the splitting/refining stage also had a slightly higher octane number and did not have the problem with sensitivity to lead. It was concluded, therefore, that the two-step method was superior in many ways, especially in octane number; the one-step was basically only superior in aromatics content. Tables of gasoline analysis and an output graph compared the experimental results. 2 tables, 1 graph

• Research Organization: I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
• OSTI ID: 6728782
• Report Number(s): TOM-164-658-661A
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
090100 -- Hydrocarbon Fuels-- (-1989)
090110 -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
ANTIKNOCK RATINGS
AROMATICS
BITUMINOUS COAL
BLACK COAL
BOILING POINTS
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DATA COMPILATION
DIAGRAMS
DISTILLATION
ELEMENTS
ENERGY SOURCES
EVALUATION
FOSSIL FUELS
FUELS
GASIFICATION
GASOLINE
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INFORMATION
LEAD
LIQUEFACTION
METALS
MODIFICATIONS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PROCESSING
PRODUCTION
RECOMMENDATIONS
REFINING
SATURATION
SENSITIVITY
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS
TABLES
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TUNGSTEN COMPOUNDS
TUNGSTEN SULFIDES
YIELDS