A chemical plant that produces coal tar pitch was expanding operations and needed to control emissions from a thermal oxidizer as part of a naphthalene reboiler project. Monroe Environmental was called upon to provide an Wet Scrubber with high temperature Quench Tower to remove SO2 from the combustion exhaust.

Scope of Supply:

• High temperature evaporative Quench Tower, designed to ASME Section VIII pressure vessel code
• Tower insulation and cladding overlay
• Spray nozzles, control valves, and liquid piping
• FRP Packed Tower Scrubber, designed and built to ASME RTP-1 standard
• High efficiency packing media
• Liquid reservoir with controls and water make up
• Mist eliminator
• Redundant recirculation pumps and piping
• Chemical feed pumps
• pH and conductivity controls
• Valves, transmitters, and instrumentation rated for Class 1 Div. 2 location
• NEMA 4X junction box

The system was designed to treat 27,000 ACFM at 800°F and achieve +99% SO2 removal efficiency.