Enhancing the use of coals by gas reburning-sorbent injection: Volume 4 -- Gas reburning-sorbent injection at Lakeside Unit 7, City Water, Light and Power, Springfield, Illinois. Final report

Technical Report · Fri Mar 01 00:00:00 EST 1996

DOI:https://doi.org/10.2172/244577· OSTI ID:244577

A demonstration of Gas Reburning-Sorbent Injection (GR-SI) has been completed at a cyclone-fired utility boiler. The Energy and Environmental Research Corporation (EER) has designed, retrofitted and tested a GR-SI system at City Water Light and Power`s 33 MWe Lakeside Station Unit 7. The program goals of 60% NO{sub x} emissions reduction and 50% SO{sub 2} emissions reduction were exceeded over the long-term testing period; the NO{sub x} reduction averaged 63% and the SO{sub 2} reduction averaged 58%. These were achieved with an average gas heat input of 22% and a calcium (sorbent) to sulfur (coal) molar ratio of 1.8. GR-SI resulted in a reduction in thermal efficiency of approximately 1% at full load due to firing natural gas which forms more moisture in flue gas than coal and also results in a slight increase in air heater exit gas temperature. Minor impacts on other areas of unit performance were measured and are detailed in this report. The project at Lakeside was carried out in three phases, in which EER designed the GR-SI system (Phase 1), completed construction and start-up activities (Phase 2), and evaluated its performance with both short parametric tests and a long-term demonstration (Phase 3). This report contains design and technical performance data; the economics data for all sites are presented in Volume 5.

• Research Organization: Energy and Environmental Research Corp., Irvine, CA (United States); Energy and Environmental Research Corp., Orville, OH (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Gas Research Inst., Chicago, IL (United States); Illinois State Government, Springfield, IL (United States)
• DOE Contract Number: FC22-87PC79796
• OSTI ID: 244577
• Report Number(s): DOE/PC/79796-T48-Vol.4; ON: DE96011869; CNN: Contract 5087-254-149; TRN: AHC29613%%52
• Resource Relation: Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
03 NATURAL GAS
ILLINOIS
FOSSIL-FUEL POWER PLANTS
AIR POLLUTION CONTROL
SORBENT INJECTION PROCESSES
RETROFITTING
COMBUSTION PRODUCTS
COCOMBUSTION
NATURAL GAS
PROGRESS REPORT
DEMONSTRATION PROGRAMS
US CLEAN COAL TECHNOLOGY PROGRAM
NITROGEN OXIDES
SULFUR DIOXIDE
BITUMINOUS COAL
SULFUR CONTENT
PERFORMANCE TESTING
MATERIAL BALANCE
ENERGY BALANCE
EXPERIMENTAL DATA