Selective Catalyst Reduction (SCR) Systems

Reducing NOx Emissions

A partnership between DCL and H+H Company, AeriNOx provides advanced Selective Catalytic Reduction (SCR) systems to reduce NOx emissions for reciprocating diesel, dual-fuel, and lean-burn natural gas engines. Tier 2 or below engines may need to be fitted with a comprehensive SCR system and a Particulate Filter to meet Tier 4 EPA regulations.

  • Reduces NOx and other emissions from stationary diesel & natural gas engines
  • Integrated Emission Control Systems achieves up to 98% emissions reduction

SCR Systems are installed on reciprocating diesel, dual-fuel, and lean-burn natural gas engines.


  • 100kw to 52MW diesel and NG engines
  • Fuel Flexible: Diesel, HFO, NG, Dual Fuel, Biodiesel


  • Engine power ranging from 1 to 10 MW
  • ULSD to HFO Fuel capability


  • Chemical processing plants
  • Glass melting furnaces
  • Biomass and Waste incineration

DCL Selective Catalyst Reduction (SCR) System

Engine exhaust passes through a particulate filter and into a SCR reactive chamber where urea is introduced into the exhaust stream. The complete SCR system consists of a urea storage tank, dosing unit, air compressor, NOx analyzer, and control cabinet.

Comprehensive Emissions Reduction

  • SCR (Selective Catalytic Reduction) for NOx
  • Oxidation Catalyst for hydrocarbons and carbon monoxide
  • Particulate Filters for soot and particulate emissions

Ready to serve you

Full service locations in Southeast, the Gulf Coast, and the Pacific Northwest, plus a network of local representatives throughout the Americas and the Caribbean.

Estamos disponible para servirle
Instalaciones de servicio completo en el Sureste; Costa Noroeste, y El Golfo. Además una red de agentes en
América Latina y el Caribe.

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Specializing in turnkey engine services, control systems, and engineered solutions for the Marine, Industrial, Energy, and Defense/Government Sectors, MSHS is ready to serve you!