LIFAC Sorbent Injection Desulfurization Demonstration Project. Quarterly report number 14, January--March, 1994

Technical Report · Tue Nov 01 04:00:00 EST 1994

OSTI ID:10191163

The host site for the $22 million, three-phase project is Richmond Power and Light`s Whitewater Valley Unit No. 2 in Richmond, Indiana. The LIFAC technology uses upper-furnace limestone injection with patented humidification of the flue gas to remove 75--85% of the sulfur dioxide (SO{sub 2}) in the flue gas. During this report period (January--March 1994), long-term testing was initiated. The variable frequency drive was placed back in service, but failed again after only a few days of operation. The Unit No. 2 induced draft (ID) fan motor operates at maximum amperage during peak (65 MW) boiler load. LIFAC increases system pressure drop approximately 4.5 inches of water, causing additional loading on the fan motor. A variable frequency drive (VFD) was installed as a major component of the LIFAC system. The VFD interfaces with the ID fan motor by varying motor current as the pressure drop and flue gas volume change, making the fan more efficient and decreasing the stress on the motor. The VFD has failed several times causing boiler Unit No. 2 to trip. Since the VFD has become unreliable, the LIFAC team decided to perform a test on the ID fan motor with the bypass damper fully closed and the VFD disengaged. The objective of long-term testing is to evaluate the performance and operability of the LIFAC process over a long, continuous operation period. There were a total of two test periods during this quarter. Results are presented.

• Research Organization: LIFAC North America, Inc., Pittsburgh, PA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-91PC90548
• OSTI ID: 10191163
• Report Number(s): DOE/PC/90548--T13; ON: DE95001952; BR: AZ0502050
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800
014000
AIR POLLUTION CONTROL
AIR POLLUTION MONITORING
COMBUSTION
COMBUSTORS
CONSTRAINTS
DESULFURIZATION
ELECTRIC MOTORS
ELECTROSTATIC PRECIPITATORS
EXPERIMENTAL DATA
FLUE GAS
FOSSIL-FUEL POWER PLANTS
HUMIDITY CONTROL
PERFORMANCE TESTING
POLLUTION CONTROL EQUIPMENT
PROGRESS REPORT
SORBENT INJECTION PROCESSES
SULFUR DIOXIDE
WASTE MANAGEMENT