System evaluation and LBTU fuel combustion studies for IGCC power generation

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Journal of Engineering for Gas Turbines and Power

DOI:https://doi.org/10.1115/1.2815452· OSTI ID:169984

Cook, C S; Corman, J C; Todd, D M ^[1]

---

1. GE Power Generation, Schenectady, NY (United States)

The integration of gas turbines and combined cycle systems with advances in coal gasification and gas stream cleanup systems will result in economically viable IGCC systems. Optimization of IGCC systems for both emission levels and cost of electricity is critical to achieving this goal. A technical issue is the ability to use a wide range of coal and petroleum-based fuel gases in conventional gas turbine combustor hardware. In order to characterize the acceptability of these syngases for gas turbines, combustion studies were conducted with simulated coal gases using full-scale advanced gas turbine (7F) combustor components. It was found that NO{sub x} emissions could be correlated as a simple function of stoichiometric flame temperature for a wide range of heating values while CO emissions were shown to depend primarily on the H{sub 2} content of the fuel below heating values of 130 Btu/scf (5,125 kJ/NM{sup 3}) and for H{sub 2}/CO ratios less than unity. The test program further demonstrated the capability of advanced can-annular combustion systems to burn fuels from air-blown gasifiers with fuel lower heating values as low as 90 Btu/scf (3,548 kJ/NM{sup 3}) at 2,300 F (1,260 C) firing temperature. In support of ongoing economic studies, numerous IGCC system evaluations have been conducted incorporating a majority of the commercial or near-commercial coal gasification systems coupled with F series gas turbine combined cycles. Both oxygen and air-blown configurations have been studied, in some cases with high and low-temperature gas cleaning systems. It has been shown that system studies must start with the characteristics and limitations of the gas turbine if output and operating economics are to be optimized throughout the range of ambient operating temperature and load variation.

• Sponsoring Organization: USDOE
• OSTI ID: 169984
• Report Number(s): CONF-940626--
• Journal Information: Journal of Engineering for Gas Turbines and Power, Journal Name: Journal of Engineering for Gas Turbines and Power Journal Issue: 4 Vol. 117; ISSN JETPEZ; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
COAL GAS
COAL GASIFICATION
COAL-FIRED GAS TURBINES
COMBINED-CYCLE POWER PLANTS
COMBUSTION KINETICS