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Dry Flue Gas Desulfurization for Power Plants 19 March 2015 Mitchell Krasnopoler

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Dry Flue Gas Desulfurization for Power Plants

19 March 2015Mitchell Krasnopoler

Dry FGD Acid Gas Control Technologies

Page 3: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

Kiewit Power Engineers

Spray Dry Absorber (SDA) with Rotary Atomizer

Page 4: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

Rotary Atomizers with SDA

Page 5: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

Dual Fluid Atomizers with SDA

Air

Page 6: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

Typical Retrofit SDA Arrangement

Page 7: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

B&W’s Hydrated Lime Injection (HLI) Upstream SDA

Page 8: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

Circulating Dry Scrubber (CDS)

Page 9: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

CDS – Component Systems

Hydrated Lime

Water

CDS

Fabric

FilterLime

Silo

Page 10: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

Fabric Filter for CDS Applications

Page 11: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

SDA v. CDS

Parameter SDA CDS

Coal Sulfur < 1.5% (typical) < 4%

SO2 Removal Efficiency 90 – 95% 95 – 99 %

Experience Large installed

base

Smaller but

growing

Recycle Ash Limited by slurry %

solids

Virtually unlimited

Fabric Filter Industry standard Larger due to

high particulate

Operations and

Maintenance

• Periodic Atomizer

cleaning

• Lime slaking

system

• No atomizer

• Uses hydrated

lime

Page 12: Dry Flue Gas Desulfurization for Power Plants WEBINARS/March 20… · Dry Flue Gas Desulfurization for Power Plants ... up to 900 MW Operating designs ... capacity or sparing on the

The Power of Relationships

Trust your next project to a company with an extraordinary record of success.

Kiewit Power Inc.9401 Renner Boulevard

Lenexa, KS 66219

(913) 928-7000 kiewit.com

Mitchell Krasnopoler

Manager, Air Quality

Kiewit Engineering & Design Co.

913-928-7074

[email protected]

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