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Preheater and blower for the 700-atm liquid phase in the (proposed) Scholven III plant (in German)

Technical Report ·
OSTI ID:6461220
Estimates are given of the heat flows involved in preheating under several operating assumptions. These assumptions included a throughput of 131.4 (metric) tons/hr of coal paste divided among 4 or 5 chambers of various design, with the largest estimated throughput per chamber being 33.6 tons/hr. Thus the preheater would have to heat 33.6 tons/hr of coal paste from 100/sup 0/C to 440/sup 0/C, 4000 m/sup 3/ m/sup 3//hr of newly-produced gas from 40/sup 0/C to 440/sup 0/C, and 26,000 m/sup 3//hr of circulating gas from 400/sup 0/C to 440/sup 0/C. It was estimated that these tasks would require 6,850,000 kcal/hr, 512,000 kcal/hr, and 343,000 kcal/hr, respectively. Using an assumed efficiency of 76.5% for the preheater, this would have required furnishing 10,100,000 kcal/hr to the preheater, and this would have required 2,500 m/sup 3//hr of (4,000 kcal/m/sup 3/) heating gas together with 12,500 m/sup 3//hr of air, and this would have given 15,000 m/sup 3//hr of spent gases vented to the atmosphere at about 407/sup 0/C. Thus, 2,030,000 kcal/hr would have been vented to the atmosphere, and, this would leave 265,000 kcal/hr to be radiated away from the preheater.
Research Organization:
I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
OSTI ID:
6461220
Report Number(s):
TOM-11-375-376
Country of Publication:
United States
Language:
German

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BERGIUS PROCESS
CALCULATION METHODS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
COAL PASTES
EFFICIENCY
ENERGY SOURCES
FEASIBILITY STUDIES
FLOW RATE
FLUIDS
FOSSIL FUELS
FUELS
GASES
GERMANY
HEAT FLOW
HEATING
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INDUSTRIAL PLANTS
LIQUEFACTION
MODIFICATIONS
SPECIFICATIONS
SYNTHETIC FUELS
TEMPERATURE DISTRIBUTION
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES