Study of a coal gasification combined-cycle power plant with methanol storage

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6667605

Paffenbarger, J A

This study examines the design and performance of a coal gasification combined-cycle power plant with an integrated facility for producing and storing methanol (GCC/methanol power plant). The methanol is produced at a steady rate and is burned in the combined-cycle to generate additional power during periods of peak electrical demand. The GCC/methanol plant takes advantage of electricity generation and energy storage in one coal-based facility. It is of potential interest to electric utilities seeking to meet increasing baseload and peak electrical demand on their systems, and is somewhat analogous to other energy storage facilities such as pumped hydroelectric or compressed air energy storage plants. The plant configuration is determined by means of an economic screening study considering capital and fuel costs over a range of cycling duties (load factors). Estimated levelized electricity production costs indicate that a GCC/methanol plant could be of economic interest as premium fuel prices increases relative to coal. The plant could potentially be of interest for meeting daily peak demands for periods of eight hours or less. The conceptual plant configuration is developed in greater detail using a Texaco gasifier and a Lurgi methanol synthesis plant. Plant performance is estimated at peak and baseload output levels using the ASPEN process analysis computer program. An acceptable use of by-product flows from the methanol plant was developed. No unusual design or operation problems were identified.

• Research Organization: Stanford Univ., CA (USA)
• OSTI ID: 6667605
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010408 -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
10 SYNTHETIC FUELS
100200 -- Synthetic Fuels-- Production-- (1990-)
20 FOSSIL-FUELED POWER PLANTS
200102* -- Fossil-Fueled Power Plants-- Power Cycles
200107 -- Fossil-Fueled Power Plants-- Off-Peak Energy Storage-- (1980-)
25 ENERGY STORAGE
250800 -- Energy Storage-- Chemical
A CODES
ALCOHOLS
CAPITALIZED COST
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COAL GASIFICATION PLANTS
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMPUTER CODES
COST
DESIGN
ECONOMICS
ENERGY SOURCES
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
ENERGY SYSTEMS
FOSSIL FUELS
FUELS
GASIFICATION
HYDROXY COMPOUNDS
INDUSTRIAL PLANTS
LOAD MANAGEMENT
MANAGEMENT
MATERIALS
METHANOL
METHANOL PLANTS
ORGANIC COMPOUNDS
OXIDATION
PEAK LOAD
PERFORMANCE
POWER GENERATION
POWER PLANTS
PRICES
PRODUCTION
STORAGE
TECHNOLOGY ASSESSMENT
TEXACO GASIFICATION PROCESS
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES