Comparison of costs of 7019, 5058, and 6434 stalls

Technical Report · Fri Jul 26 04:00:00 EDT 1940

OSTI ID:6889828

A cost investigation previously showed a vapor phase 7019 stall was estimated to cost some RM 200,000 more than the average costs of 5058 and 6434 stalls. The preheaters played a major role in the increse in costs, and this investigation was to a great extent limited to the differences in preheating. Table I gives the data necessary for the preheater computations taken from the Nordstern flow scheme for one three-converter 7019 stall. Six such 7019 stalls produced the same amount of gasoline as three three-converter 5058 stalls plus three two-converter 6434 stalls. Consequently the 7019 preheating was comparable with the above combination. Table II contains the heats of reactions which had been determined in the Scholven 5058 and 6434 stalls. The values found in Nordstern were similar but had not been determined accurately. Table II also gives the catalyst temperatures as obtained during regular operations with 5058 and 6434, while the results for 7019 were obtained operating at the highest possible pressures. The final conclusion was a larger 7019 preheater was required for three reasons: a larger return flow from 7019, smaller temperature jump in the catalyst, and a higher outlet temperature from the preheater (495/sup 0/C). Overall, the 7019 chamber required about four times as much heat added to the reaction per metric ton of gasoline produced as did the combination of 5058 and 6434. Part of the great difference was due to the fact that the reaction involving 5058 was so exothermic. Table IV shows heat-flow diagrams and heat balances. 4 tables.

• Research Organization: Corporate Unverified
• OSTI ID: 6889828
• Report Number(s): TOM-237-750-756
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CARBONACEOUS MATERIALS
CATALYSTS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION PLANTS
COMPARATIVE EVALUATIONS
COST
DATA COMPILATION
DESIGN
ENERGY SOURCES
ENTHALPY
FEASIBILITY STUDIES
FLUIDS
FOSSIL FUELS
FUELS
GASES
GASOLINE
GERMANY
HEAT EXCHANGERS
HEAT FLOW
HEATERS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INDUSTRIAL PLANTS
INFORMATION
INVESTMENT
MODIFICATIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLANNING
PRODUCTION
REACTION HEAT
RECOMMENDATIONS
TABLES
TEMPERATURE GRADIENTS
THERMODYNAMIC PROPERTIES