Analysis and simulation of recycle so/sub 2/-lime slurry in TCA (turbulent contact absorber) scrubber system. Final report Jun 74-Aug 76

Technical Report · Tue Mar 01 04:00:00 EST 1977

OSTI ID:7219156

Wen, C Y; Fong, F K

The report gives results of an analysis of flue gas desulfurization by a turbulent contact absorber (TCA) employing lime slurry, including the development of performance equations for the scrubber-hold tank recycle system. Performance characteristics investigated include pressure drop of the scrubber, CO/sub 2/ and SO/sub 2/ absorptions, and lime utilization. Experimental data obtained from EPA/Research Triangle Park and TVA/Shawnee Power Station are used for the analysis and correlation. The analysis of CO2 absorption indicates that the overall mass transfer coefficient is a function of the pH of inlet and outlet scrubber liquor and is very sensitive to the liquor flow rate. (The rate of SO/sub 2/ absorption in a TCA has been developed previously by McMichael et al., 1976.) The correlations developed are used to formulate a simulation procedure for predicting SO/sub 2/ scrubbing efficiency as a function of pH of slurry and gas and liquor flow rates. The result of simulation indicates that, for a given lime feed rate and a fixed inlet and outlet SO2 concentration, a maximum flue gas flow rate exists which the scrubber can treat by the recycling slurry. An example is shown for the design of a TCA capable of desulfurizing flue gas from a 50-MW power station.

• Research Organization: West Virginia Univ., Morgantown (USA). Dept. of Chemical Engineering
• OSTI ID: 7219156
• Report Number(s): PB-266104
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
EQUIPMENT
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
SCRUBBERS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES