What is
RECD?
A Retrofit Emission Control Device is an after-treatment system installed on existing diesel generators to significantly reduce harmful exhaust emissions and meet CPCB compliance requirements.
How RECD Reduces Emissions
Understanding the technology behind cleaner diesel exhaust.
The Filtration Process
- 1
Exhaust Capture
Hot exhaust gases from the DG set enter the RECD system through the exhaust pipe.
- 2
Oxidation Stage
Diesel Oxidation Catalyst converts CO and hydrocarbons into less harmful compounds.
- 3
Particulate Filtration
Diesel Particulate Filter traps soot particles, preventing them from entering the atmosphere.
- 4
Clean Exhaust Release
Treated, cleaner exhaust is released with significantly reduced harmful emissions.
Diesel Oxidation Catalyst (DOC)
Oxidizes carbon monoxide (CO) and hydrocarbons (HC) into carbon dioxide and water vapor.
Diesel Particulate Filter (DPF)
Captures and stores exhaust soot (particulate matter) to prevent atmospheric release.
Catalytic Converter
Reduces harmful emissions through chemical reactions with precious metal catalysts.
Exhaust Gas Treatment
Additional treatment systems for specific pollutant reduction requirements.
Emission Reduction Achieved
CPCB type-approved RECDs achieve significant reduction in harmful pollutants.
70-90%
Particulate Matter (PM)
50-70%
Carbon Monoxide (CO)
50-80%
Hydrocarbons (HC)
60-85%
Smoke Opacity
Why RECD is Mandatory
Understanding CPCB regulations and compliance requirements.
CPCB Norms
All DG sets above 15 kVA must comply with Central Pollution Control Board emission standards in non-attainment cities.
Type Approval
RECD systems must be type-approved by CPCB to ensure they meet specified emission reduction standards.
Emission Standards
RECDs must achieve minimum 70% reduction in particulate matter and significant reduction in other pollutants.
Non-Compliance Penalties
Facilities operating non-compliant DG sets face penalties, closure notices, and legal action under environmental laws.
Supporting India's National Clean Air Programme (NCAP)
The NCAP aims to achieve 20-30% reduction in PM2.5 and PM10 concentrations. RECD installation on DG sets is a critical component of this national initiative.
Non-Attainment Cities
Cities where RECD is mandatory for DG sets:
Ready to Make Your DG Sets Compliant?
Get CPCB type-approved RECD installation with complete compliance support across Pan India.
