Exhaust aftertreatment and noise control products

Four product lines for gas and diesel gensets up to 5 MW. Each is sized to the engine model, exhaust flow and site conditions, and can be supplied on its own or as one package.

  • Illustration of a Treeing SCR reactor for genset exhaust
    Illustration

    Treats: Nitrogen oxides (NOx)

    SCR (Selective Catalytic Reduction) system

    Urea-based selective catalytic reduction that cuts NOx in genset exhaust to meet the site emission limit. Closed-loop dosing control, sized for each engine.

    Treats
    Nitrogen oxides (NOx)
    Engines
    Gas and diesel gensets up to 5 MW
    Reductant
    32.5% urea solution (AUS 32 / DEF)
    Product details
  • Illustration of a Treeing genset acoustic enclosure
    Illustration

    Treats: Noise

    Genset acoustic enclosure

    A custom enclosure that brings genset noise down to the site limit while keeping the engine cool and easy to service.

    Treats
    Noise
    Engines
    Gas and diesel gensets up to 5 MW
    Design
    Built for each genset model and site
    Product details
  • Illustration of a Treeing diesel particulate filter
    Illustration

    Treats: Soot and black smoke (PM)

    DPF (Diesel Particulate Filter)

    A wall-flow filter that captures soot from diesel exhaust and removes visible black smoke. The filter is cleaned in place by regeneration.

    Treats
    Soot and black smoke (PM)
    Engines
    Diesel gensets up to 5 MW
    Substrate
    Wall-flow, cordierite or silicon carbide (SiC)
    Product details
  • Illustration of a Treeing diesel oxidation catalyst
    Illustration

    Treats: CO and hydrocarbons (HC)

    DOC (Diesel Oxidation Catalyst)

    A precious-metal oxidation catalyst that converts carbon monoxide and hydrocarbons in diesel exhaust, and helps the DPF downstream to regenerate.

    Treats
    CO and hydrocarbons (HC)
    Engines
    Diesel gensets up to 5 MW
    Substrate
    Flow-through honeycomb with precious-metal coating
    Product details

Which products does my genset need?

GensetTypical limitsUsual combination
Gas gensetNOxSCR
Gas genset near homes or officesNOx and noiseSCR and acoustic enclosure
Diesel gensetBlack smoke, PM, CO and HCDOC and DPF
Diesel genset with a NOx limitNOx, PM, CO and HCDOC, DPF and SCR as one module

This is a starting point. The final scope depends on the local limits and the engine data.

Request a quote

Send the engine model, fuel and the emission limit for your site. An engineer replies with a first assessment.

  • Engine make, model and number of units
  • Fuel type, and a gas analysis for biogas
  • NOx limit with reference O₂, and any noise limit
  • Site layout or exhaust drawings, if available

Prefer to call or write directly?

  1. 1Equipment
  2. 2Requirements
  3. 3Contact
Step 1 of 3Equipment

All fields in this step are optional.

Products needed
Fuel

As written on the genset nameplate, if you have it

Step 2 of 3Requirements

All fields in this step are optional.

For example: NOx 250 mg/Nm³ at 5% O₂, or 70 dB(A) at 7 m. Leave blank if not known.

Site, running hours, deadline, anything else we should know

Step 3 of 3Contact

With country code, for example +84 ...

An engineer replies by email. You can send drawings after we reply.