Tip-filter tests on paraffin removal from Luetzkendorf Paraffingatsch and Zeitz separator residue hydrogenated in a small unit

Technical Report · Wed Apr 21 04:00:00 EDT 1943

OSTI ID:6993510

Engel,

By the propane process, deparaffining tests were conducted on hydrogenated products made from Luetzkendorf and Zeitz residues. A table provided information as to raw materials, hydrogenation temperature, catalyst, pressure, input, and gas used. The report stated that all materials were deparaffined by heating each 300 g, in which 1.5 g filtering agent A was dissolved together with 600 g propane, to 70/sup 0/C in the tip-filter. Then the mixture was cooled to -40/sup 0/C, filtered under 0.2 atmospheres of nitrogen, and 1 to 3 g removed for a paraffin test. The rest of the paraffin was immediately mixed with 600 g propane. This was stirred for 10 minutes at -40/sup 0/C, and filtered again under 0.2 atmospheres nitrogen. All products tested gave good results in the tip-filter. Properties of products resulting from the deparaffination were discussed. These included specific gravity, paraffin melting points and how hydrogenation temperatures affected specific gravity. Tables attached gave information resulting from processes run on the residues. Luetzkendorf Paraffingatsch (paraffin sludge from Fischer--Tropsch synthesis) gave 44.6% to 49% (by weight) paraffin when hydrogenated at temperatures between 14.5 and 20.5 millivolts; at higher temperatures, the specific gravity of the oil fell off increasingly strongly and that of the paraffin not so strongly. Hydrogenation of Zeitz residue didn't seem to change the properties of its paraffins very greatly, but the paraffin content was increased a bit (from 43.5% to more than 48%). Hydrogenating Zeitz residue with higher throughput and less gas injected gave slightly lower yield of paraffin, and the specific gravity of the paraffin was lower, whereas that of the oil was higher.

• Research Organization: I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
• OSTI ID: 6993510
• Report Number(s): TOM-252-554-559
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403* -- Coal & Coal Products-- Hydrogenation-- (-1987)
010600 -- Coal
Lignite
& Peat-- Properties & Composition
ALKANES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION PLANTS
COAL LIQUIDS
DATA COMPILATION
DENSITY
DIAGRAMS
ENERGY SOURCES
EVALUATION
FILTERS
FILTRATION
FOSSIL FUELS
FUELS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INDUSTRIAL PLANTS
INFORMATION
LOW PRESSURE
LOW TEMPERATURE
MATERIAL BALANCE
MEDIUM PRESSURE
MEDIUM TEMPERATURE
MELTING POINTS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PROPANE
RECOVERY
RESIDUES
SEPARATION PROCESSES
SLUDGES
TABLES
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
YIELDS