LIFAC Sorbent Injection Desulfurization Demonstration Project

Technical Report · Wed Jan 01 04:00:00 EST 1992

DOI:https://doi.org/10.2172/7269629· OSTI ID:7269629

The LIFAC technology has similarities to other sorbent injection technologies using humidification, but employs a unique patented vertical reaction chamber located down-stream of the boiler to facilitate and control the sulfur capture and other chemical reactions. This chamber improves the overall reaction efficiency enough to allow the use of pulverized limestone rather than more expensive reagents such as lime which are often used to increase the efficiency of other sorbent injection processes. Sorbent injection is a potentially important alternative to conventional wet lime and limestone scrubbing, and this project is another effort to test alternative sorbent injection approaches. In comparison to wet systems, LIFAC, with recirculation of the sorbent, removes less sulfur dioxide - 75--85% relative to 90% or greater for conventional scrubbers - and requires more reagent material. However, if the demonstration is successful, LIFAC will offer these important advantages over wet scrubbing systems: LIFAC is relatively easy to retrofit to an existing boiler and requires less area than conventional wet FGD systems; LIFAC is less expensive to install than conventional wet FGD processes; LIFAC's overall costs measured on a dollar-per-ton S0{sub 2} removed basis are less, an important advantage in a regulatory regime with trading of emission allocations. LIFAC produces a dry, readily disposable waste by-product versus a wet product; and LIFAC is relatively simple to operate.

• Research Organization: LIFAC North America, Inc., Oakland, CA (United States); ICF Kaiser Engineers, Inc., Pittsburgh, PA (United States); Tampella Power, Tampere (Finland)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-91PC90548
• OSTI ID: 7269629
• Report Number(s): DOE/PC/90548-T6; ON: DE92019652
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
CARBONATE ROCKS
CHEMICAL REACTIONS
DEMONSTRATION PROGRAMS
DESULFURIZATION
DOCUMENT TYPES
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMESTONE
POWER PLANTS
PROGRESS REPORT
ROCKS
SCRUBBING
SEDIMENTARY ROCKS
SORBENT INJECTION PROCESSES
THERMAL POWER PLANTS
WASTES