**Gerald Gentleman #1 Dry Scrubber**

**Given/A ssumed**  Flow rate (acfm) Flue Gas Temperature (degrees F) Uncontrolled SO2 emissions (TPY) 24,893 2001 - 2003CAM data Absorber + $48,377,000 company report ductwork $48,404,000 company report baghouse modifications $13,284,000 company report Retrofit factor 1.0 NPS estimate SO2 Control efficiency 90% NPS estimate Control System Pressure Drop In. wc) Operating Hours per Year 8760 NPS estimate Operating Hours per Shift 8 NPS estimate Operating Shifts per Year 1095 NPS estimate Operating Labor Cost ($/hr) 40.60 $ company report Maintenance Labor Cost ($/hr) Waste generation (lb/hr) Waste disposal cost ($/ton) 5.00 $ company report Solvent usage (gpm) Solvent cost ($/kgal) 1.00 $ company report Chemical usage (lb/hr) Chemical cost ($/ton) 95.00 $ company report Electrical Cost ($/kW h) Fan-Motor Efficiency

(%) Equipment Life (yr) 15 OAQPS Control Cost Manual Interest Rate (%) 7.00% OAQPS Control Cost Manual**Gerald Gentleman #1 Dry Scrubber**

**Capital Cost factors for Gas A bsorbers--OA** **QPS Control Cost Manual, Chap 9**

Cost Item Factor Cost Direct Costs Purchased equipment costs Absorber + auxiliary

equipment, EC A $110,065,000 Instrumentation 0.10 A Sales taxes 0.03 A $3,301,950 Freight 0.05 A $5,503,250 Purchased equipment cost, PEC B= 1.18 A $118,870,200

Direct installation costs Foundations & supports 0.12 B $14,264,424 Handling & erection 0.40 B $47,548,080 Electrical 0.01 B $1,188,702 Piping 0.30 B $35,661,060 Insulation 0.01 B $1,188,702 Painting 0.01 B $1,188,702 Direct installation costs x 1 x 0.85 B $101,039,670

Site preparation As required, SP Buildings As required, Bldg.

Total Direct Costs, DC 1.85 B+SP+Bldg $219,909,870

Indirect Costs (installation) Engineering 0.10 B $11,887,020 Construction and field expenses 0.10 B $11,887,020 Contractor fees 0.10 B $11,887,020 Start-up 0.01 B $1,188,702 Performance test 0.01 B $1,188,702 Contingencies 0.03 B $3,566,106

Total Indirect Costs, IC 0.35 B $41,604,570

Total Capital Investment = DC + IC 2.20 B+SP+Bldg $261,514,440

### Gerald Gentleman #1 Dry Scrubber

**Annual Cost factors for Gas Absorbers--OAQPS Control Cost Manual, Chap 5**

Cost Item Factor Direct Annual Costs, DC Operating labor Operator 0.5 hr/shift Supervisor 15% of operator Operating materials Solvent 0 gpm * 1.00 $ /kgal = Chemicals 0 lb/hr * 95.00 $ /ton = Wastewater Disposal 0 lb/hr * 5.00 $ /ton = Maintenance Labor 0.5 hr/shift Material 100.00% of maintenance Electricity All electricity equal to: fan 0.000181 * 0 acfm* 0 in.wc*

8760 hr/yr * 0 unit cost = pump Total DC

Indirect Annual Costs, IC Overhead 60% of total labor and material costs Administrative charges 2% of Total Capital Investment Property tax 1% of Total Capital Investment Insurance 1% of Total Capital Investment Capital recovery 0.1098 * Total Capital Investment

Total IC

Total Annual Cost DC + IC

### Annual Cost factors for Gas Absorbers--OAQPS Control Cost Manual, Chap 5

Cost

$22,229 $3,334

$0 $0 $0

$0 $0

$0 $25,563

$15,338 $5,230,289 $2,615,144 $2,615,144 $28,712,880 $39,188,795

$39,214,358**Gerald Gentleman #1 Dry Scrubber**

SO2 Uncontrolled emissions (TPY) 24,893 Control efficiency

(%) 90% Em ission reduction (TPY) 22,403 Controlled emissions (TPY) 2,489 Total annualized cost ($/yr) $39,214,358 Cost/ton removed ($/T) $1,750