Economics of Texaco gasification: combined cycle systems. Final report. Economic studies of coal gasification combined cycle systems for electric power generation

Technical Report · Sat Apr 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6778459· OSTI ID:6778459

McElmurry, B.; Smelser, S.

This report presents the results of an economic screening study for air blown Texaco coal gasification coupled with combined cycle power generation, specifically to determine whether an air blown Texaco gasifier had economic incentives greater than oxygen blown Texaco gasification. This process arrangement extends the work covered in the Combined Cycle Report (EPRI AF-642), which included the Lurgi dry ash gasifier, the British Gas Corporation Slagger, and three entrained processes offered by Combustion Engineering, Foster Wheeler, and Texaco. All these processes were integrated with combined cycle plants based on advanced gas turbine technology (2,400/sup 0/F Combustion Outlet) estimated by Westinghouse to be available in the 1981--1985 time period. The evaluations were based on complete ''grass-roots'' facilities sized to conform to the present electric utility practice of building units of approximately 1,000 MW capacity. The conclusion reached in this supplement report is that within the accuracy of the study, the Texaco process with air blown gasification is economically equivalent to oxygen blown gasification. It is concluded that development emphasis should be placed on power generation, rotating machinery, heat transfer equipment, and further gasification pilot plant experiments to maximize the overall thermal efficiency of air blown Texaco gasification. The air blown case presented here is more speculative than the oxygen case because the Texaco process has not been as well demonstrated for air blown operation as for oxygen blown, and because of some added uncertainty in the design assumptions for some of the high temperature heat transfer equipment. Both processes have the potential for commercialization in the mid to late 1980's.

• Research Organization: Fluor Engineers and Constructors, Inc., Irvine, Calif. (USA)
• OSTI ID: 6778459
• Report Number(s): EPRI-AF-753
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
20 FOSSIL-FUELED POWER PLANTS
200106 -- Fossil-Fueled Power Plants-- Economics
AIR
COAL GASIFICATION
COMBINED-CYCLE POWER PLANTS
COMPARATIVE EVALUATIONS
CRYOGENIC FLUIDS
ECONOMICS
ELEMENTS
FLUIDS
GASES
GASIFICATION
NONMETALS
OXYGEN
POWER PLANTS
TEXACO GASIFICATION PROCESS
THERMAL POWER PLANTS