SITE

Catlettsburg, Kentucky

PROBLEM

An existing incinerator processes activated carbon. The exhaust gases contain particulate matter and SO₂ which must be controlled. A wet scrubbing system was needed that would be energy efficient and corrosion resistant.

solution

Emtrol applied the Type W60, Impingement Tray Scrubber in combination with a low energy Venturi-Quencher to remove both particulate matter and SO₂ from the flue gases.

Hot gases pass through the Venturi-Quencher where they are saturated. Larger particles are removed in the quencher and some SO₂ is absorbed. Gases then exit the quencher and pass through multiple stages of variable valve impingement trays.

Scrubbing liquid is introduced on the top of each tray where turbulent action creates small droplets. Fine particulate matter then collides with these droplets and is thereby collected. SO₂ is absorbed due to the intimate contact with the pH controlled scrubbing solution introduced at the top tray. A high efficiency mist eliminator removes entrained liquid from the flue gas prior to exiting to the I.D. fan and exhaust stack.

The entire scrubbing system was designed and manufactured using today's high nickel alloys and reinforced thermoplastics to provide long life in a very corrosive environment.

result

The Emtrol W60 has exceeded the required emission limits for both particulate and SO₂ and has proven reliable and efficient. Emtrol's expertise in scrubbing technology, corrosion resistant materials and system design has proven valuable in this and many similar applications.