Industry
VOC Control Materials for Coating Lines
Emission problems, pollutants, operating conditions and recommended materials for the coating sector.
Typical emission problems
- VOC emissions from spray booths and drying ovens
- Mixed solvent VOCs
- Continuous operation with stable load
Main pollutants
- Benzene, toluene, xylene
- Esters
- Ketones
- Alcohols
Operating conditions
Coating lines produce steady VOC loads at moderate temperature — well matched to catalytic oxidation. Dilute booth exhaust can be concentrated by adsorption before oxidation.
Recommended material selection
- Pt honeycomb VOC catalyst (YC-XB-A) for standard loads
- Pt-Pd VOC catalyst (YC-XB-B) for lower light-off requirements
- Zeolite adsorption concentration for low-concentration booth exhaust
Engineering considerations
Coating and paint shops emit VOCs from spraying and drying, often at low concentration but with significant particulate — overspray mist — that must be filtered before any catalyst or adsorbent bed. Paint mist is the fastest way to blind a honeycomb catalyst face.
The VOC species list includes aromatics, esters, ketones and glycol ethers. Ketones deserve special attention on activated carbon: their adsorption exotherm can push a poorly ventilated bed toward ignition. Zeolite or catalytic routes are preferred for ketone-rich streams.
Two-stage treatment is common: dry filtration plus adsorption concentration, followed by catalytic oxidation of the concentrate. The concentration ratio — typically 5–15× — is set by the VOC load and the adsorbent's desorption characteristics.
Tell us about your stream
Gas flow, concentration, temperature, humidity, SO₂ and dust — we will recommend the right catalyst or adsorbent system.