Distillation of 8 te/h of hydrogenation residues in Poelitz

Technical Report · Tue Oct 16 04:00:00 EST 1945

OSTI ID:7017044

The material to be treated in the so-called hydrogenation sludge consisted of 80% oil and tar particles and 20% of powdered ash and catalyst constituents. The material was distilled in a vacuum. It was transmitted by a pump through heat exchangers, through a tubular furnace, and into the distillation column. The residue boiling above 450/sup 0/C at 760 mm Hg was drawn off from the bottom. The oil vapors left the column at its head and entered a vacuum fractioning column where they were separated into two fractions, up to 350/sup 0/C and between 350/sup 0/C and 450/sup 0/C. Some of the middle oil was drained off at the bottom of the vacuum still and returned to the head, while the rest of the output was pumped through heat exchangers and coolers to the proper storage tanks. Oils with a boiling range of up to 350/sup 0/ left at the head of the column, passed through coolers and into tanks which adjoined the stills. The balance of the production from this tank was sent to final cooling and into the proper tank. The vacuum pump could maintain a vacuum of 50 mm Hg absolute. The plugging up with the solids of the HOLD sludge was avoided by not building the fractioning columns with the usual bell jar bottoms but with mutually connected packed screen bottoms. This was shown in an accompanying sketch. 1 sketch

• Research Organization: Hydrierwerke Poelitz, A.G. (Germany)
• OSTI ID: 7017044
• Report Number(s): TOM-237-1078-1079
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ASHES
BOILING POINTS
CARBONACEOUS MATERIALS
CATALYSTS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
CONTROL
CONTROL EQUIPMENT
COOLING SYSTEMS
DESIGN
DIAGRAMS
DISTILLATION
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FRACTIONATION
FUELS
GERMANY
HEAT EXCHANGERS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
LABORATORY EQUIPMENT
LIQUEFACTION
LOW PRESSURE
MEASURING INSTRUMENTS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE CONTROL
PRESSURE GAGES
PRESSURE MEASUREMENT
PRESSURE REGULATORS
PUMPS
RESIDUES
SEPARATION PROCESSES
SLUDGES
STORAGE
TAR
TEMPERATURE CONTROL
TEMPERATURE MEASUREMENT
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VACUUM GAGES
VACUUM PUMPS