Process design and economic evaluation of a 100,000-BBL/day Synthoil plant

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6747512

Salmon, R.; Edwards, M. S.; Ulrich, W. C.

A complete process design was prepared for a conceptual 100,000-bbl/day grass-roots Synthoil facility charging 50,000 tons/day of Western Kentucky coal. The facility consisted of about 15 process units including a 12,000-ton/day oxygen plant, an entrained-bed gasification plant, gas treating facilities, and a 2000-ton/day sulfur plant. The process design basis was established using experimental data obtained at Pittsburgh Energy Research Center on a 1/2-ton/day bench/scale unit. Reactor operating pressure was 4000 psig, and total hydrogen consumption was 556 million std. cu. ft./day. Process flow diagrams, material and energy balances, and equipment sizes were developed for all of the process units. The estimated overall capital investment for the facility was $1900 million based on 1976 dollars, of which $1670 million was depreciable capital. The cost of the coal mine was not included. Using the discounted cash flow procedure, the cost of the product oil was calculated and plotted as a function of the cost of coal and the annual after-tax rate of return on equity. This was done for four capital structures ranging from 100% equity to 95% debt, using an annual interest rate on debt of 9%. As an example of the results, the cost of the product oil was $22.60/bbl with a debt-equity ratio of 70/30, a 12% annual after-tax rate of return on equity, and a coal cost of $20/ton.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6747512
• Report Number(s): CONF-780611-6
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
COAL LIQUIDS
COST
DESIGN
DIAGRAMS
ECONOMICS
EFFICIENCY
FLOWSHEETS
HYDROGEN PRODUCTION
INDUSTRIAL PLANTS
INVESTMENT
LIQUEFACTION
SYNTHOIL PROCESS
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
YIELDS