Characteristics of tar centrifuges at Boehlen; list of decompressed gases (in German)
Boehlen used 11 centrifuges made by Haubold at Chemnitz. The rotating drum had diameter of 2000 mm, processed 500 to 600 liters, and turned at 600 rev/m. Eight or nine of the centrifuges operated on raw tar to reduce the solids content from between 0.5 and 1% to between 0.2 and 0.4%. The remaining centrifuges operated on residues and impure oils. Carbon dioxide was used as the atmosphere for centrifugation, as a protective device. A list of about 22 different gases resulting from decompression of materials in the process at the Boehlen plant was given. Gases from tar distillation, from decompressing the product of the tar (liquid-phase) chambers from 20 atm to atmospheric pressure, and from decompressing the sludge of the tar chamber from 280 atm to atmospheric pressure were collected and recompressed to be recirculated into the chambers. Gases from decompressing the product from the tar chambers from 300 to 20 atm, gases from decompressing the circulating-gas wash oil from 200 to 20 atm and from there on to atmospheric pressure, and residual gases from the Linde gas-fractionating installation were burned for power and heat. Gases from several distillations and gasoline-stabilization steps in the vapor phase were collected and sent to the Alkazid (sulfur-removal) installation together with the gases from decompressing the product of the vapor-phase chambers. Liquefied gases from these distillations and stabilizations were sent to the Linde installation or sold directly as fuels.
- Research Organization:
- Braunkohle Benzin A.G., Boehlen (Germany)
- OSTI ID:
- 6365514
- Report Number(s):
- TOM-11-734
- Country of Publication:
- United States
- Language:
- German
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CENTRIFUGES
SPECIFICATIONS
COAL LIQUEFACTION PLANTS
GAS FLOW
GASES
COAL TAR
HYDROGENATION
BERGIUS PROCESS
DESIGN
GERMANY
HIGH PRESSURE
HIGH TEMPERATURE
NORMAL-MODE ANALYSIS
SEPARATION PROCESSES
SYNTHETIC FUELS
CHEMICAL REACTIONS
COAL LIQUEFACTION
CONCENTRATORS
FLUID FLOW
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ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
TAR
THERMOCHEMICAL PROCESSES
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