SINGLE STAGE BETA NOx 2000™
This is a high-efficiency single stage wet absorption system. This system is used to destroy the brown/red color associated with nitrogen dioxide. System designs can be warranted up to 99% NO2 removal based on customer needs. If the ratio of NO2/NO is three or greater, the system can significantly remove the nitric oxide component of NOx as well (up to 70% removal of NO component). The system design incorporates pH and ORP control for automatic caustic and reducer additions. It is sometimes possible to scrub the nitrogen dioxide component with pH control only, depending on specific conditions and requirements.

This system is a compact, easy to use, and cost effective means to control NOx fumes from your process equipment.

TWO STAGE BETA NOx 2000™
There are two types of dual stage scrubbing systems for NOx treatment. The first is an oxidation/reduction system used to control both Nitric Oxide and Nitrogen Dioxide. The equipment arrangement is specific for the inlet condition where nitric oxide is the predominant NOx species present. The first stage is used to oxidize excess Nitric Oxide, with the second stage being a reduction of nitrogen dioxide. The end product is harmless. The system uses a caustic pH control for each recirculation tank. ORP control of the oxidation chemical occurs in Stage 1 recycle tank and ORP control of reducer chemistry in Stage 2 recycle tank. Warranted total NOx destruction of up to 99% is achievable with this style system.

The second version of this two column arrangement is a caustic absorption/reduction system used to control very high levels of Nitrogen Dioxide. This style system is designed to minimize chemical usage of reducer by incorporating pH control only in Stage 1 with pH/ORP controls in Stage 2.

THREE STAGE BETA NOx 2000™
This reduction/oxidation/reduction style system is required where Nitrogen Dioxide is the predominant NOx species present, but total NOx control including Nitric Oxide is necessary. This system allows for removal of the Nitrogen Dioxide component prior to oxidation to use the oxidant more cost effectively. Stages #1, and #3 are identical, both being Nitrogen Dioxide reducing columns. Stage #2 is the oxidizing step. Total NOx destruction of up to 99% is achievable with this
multi-stage arrangement, while minimizing chemical costs and offering a high degree of operational flexibility.

Standard Features

• C-channel steel skid mounted recirculation tanks with PVC corrosion resistant coating.
  
• UV-resistant thermoplastics for outdoor applications.
  
• Hot gas and extrusion welded construction.
  
• Homogenous thermoplastic construction
  for complete corrosion resistance, and
  simple repair/maintenance.
  
• Hydrostatic factory testing.
  
• Easy pop-out access doors.
  
• PVC schedule 80 piping.
  
• Full union PVC ball valves.
  
• Sealless vertical pumps (factory mounted).
  
• Packing removal doors.
  
• Differential pressure gauges.
  
• Heavy-duty flanges.
  
• Heavy-duty scrubber bottom.
  
• 316 stainless steel hardware.

Options

• Automatic liquid hold up valves for on/off service.
  
• Tank agitation.
  
• Automatic control valving with proximity
  position indicators.
  
• Variable frequency drives.
  
• Balanced ventilation systems.
  
• Factory assembled and operated systems.
  
• Local motor disconnects.
  
• Chemical tanker off-loading stations
  and storage tanks.
  
• Structural framing and catwalk assemblies.
  
• P. E. stamped equipment designs.
  
• On-line mass balancing.
  
• Blowdown waste treatment tank systems.
  
• Tail gas odor control safety systems.
  
• PC operator interface and PLC control system.
  
• High efficiency acid aerosol fiberbed control columns.

Scrubber System Complete Design Capability

• Wet and dry particulate control.
  
• Hot gas quenching.
  
• Condensers.
  
• Heat Exchangers.
  
• Multi-stage mist collectors.
• Hoods and duct.