Nox Scrubber System

Industrial facilities and power plants dealing with nitrogen oxides (NOx) such as NO2 must consider the dangers of emitting pollutants into the atmosphere and determine an effective way to reduce nitrogen oxides. If left untreated, NOx emissions contribute to environmental smog and acid rain that pose a threat to layers of the ozone.

Businesses handling the combustion of fossil fuels can acquire the help of MACH Engineering for filtering nitrogen oxides that become dangerous for employees, system processes and those living in nearby communities.

NOx Scrubber

Multi-stage scrubbers from MACH Engineering keep nitrogen oxide (NO) and nitrogen dioxide (NO2) levels in compliance with state and federal regulations for a safer workplace. MACH Engineering professionals actively attend to the following industries for NOx and NO2 removal:

  • Chemical and food processing
  • Petrochemical
  • Pharmaceuticals
  • Plating and metal finishing
  • Odor controls
  • Water and wastewater
  • Ethanol production plants
  • Refineries
  • Pulp and paper

What Are Nitrogen Oxides?

Nitrogen oxides are a family of seven gases and compounds containing traces of nitrogen and oxygen. NOx has a negative impact on climate change and human health. That’s why many people ask how we can reduce nitrogen oxides. Emissions from nitrogen oxides frequently originate from vehicle/production exhaust, burning coal and electrical facilities.

Signs of NOx Inhalation

Your workers can face undesirable health effects by inhaling or making contact with nitrogen oxides on the job so it is important that you use an effective way to remove nitrogen dioxide from indoor air your employees will breathe. Symptoms of insufficient nitrogen oxide filtering include the following warning signs:

  • Irritation of eyes/skin
  • Coughing
  • Nausea
  • Headache
  • Difficulty breathing at site

Due to the health risks associated with NOx, a NOx wet scrubber system is critical not just for environmental protection, but also for worker protection.

NOx Wet Scrubbers

NOx scrubber systems collect fumes, colorless/colorized gases and hydrogen sulfide smells. Our systems use random packing beds with an arrangement of scrubbing liquid sprays for NOx fume streams. This action reduces NOx gases and prepares an odorless emission for release into the environment.

MACH Engineering NOx scrubber systems require vertical vessels for packing materials and filtration. Due to the nature of nitrogen oxide gases, nitrogen scrubbers require greater packing height, multiple scrubbing chemicals and sometimes multiple stages to achieve National Ambient Air Quality Standards (NAAQS). Because of this greater complexity, it is critical to work with an experienced team of engineers to select the appropriate packing materials and design an effective scrubbing process.


NOx Scrubbing Process

In the NOx scrubbing process, nitrogen oxide gases and compounds enter packed towers for contact with effective reagents that absorb unwanted pollutants such as nitric oxide and nitrogen dioxide.

The first stage of nitrogen oxide scrubbing focuses on the oxidation of NO and NO2 through liquid solutions. The reduction process occurs in the second stage where nitrogen and oxygen molecules are separated. Depending on the physical and chemical properties of the gas streams containing oxides of nitrogen, some processes may require five or more stages to achieve the reactions needed to destroy the NOx constituents.

Our scrubbers are suitable for hot and cold phase systems depending on the type of industry. NOx scrubbers manage the following gas stream residuals for your business operations:

  • Cl2
  • HCl
  • SO2
  • Caustics
  • And more

NOx Scrubbing Process

MACH Engineering offers full customization over NOx wet scrubber systems. Our engineers will run process simulations and advanced calculations to design a system appropriate for your specific application. We consider the following details as we outline your specialized scrubber:

  • Number of scrubbing stages
  • Construction materials
  • Packing materials — we recommend Tri-Packs
  • Vapor pressures
  • System temperatures
  • Scrub/flow rates
  • Liquid/gas ratios
  • Dimensions
  • Reagent materials
  • pH control
  • Pressure drops

NOx scrubbers from MACH Engineering are built with polypropylene, PVC, CPVC, stainless steel and fiber-reinforced plastics (FRPs) tower packing, internals, and construction materials based on your application. All of our scrubbers feature low-corrosion materials to suit your environment long-term. Our engineers can also provide recommendations regarding the installation of your scrubber.

Contact MACH Engineering for NOx Scrubber Systems

Nitrogen oxide gases and compounds are a concern for workers, plants and layers of the ozone. MACH Engineering will design and manufacture custom NOx scrubbers for existing industrial systems to enhance overall safety compliance. Contact MACH Engineering today online or call us at (281) 550-3232 for more information about our products and services.