VOC & Exhaust Gas Treatment Systems

Specialized VOC abatement for automotive paint shops and the PCB industry. Compliant with GB 37822-2019 and international emission standards.

Painting workshops — especially spray booths and drying ovens — generate large volumes of exhaust containing organic solvents such as benzene, toluene and xylene. SYZOY engineers complete abatement trains matched to your flow rate, VOC concentration and compliance target.

RTO regenerative thermal oxidizer

RTO — Regenerative Thermal Oxidizer

The core environmental equipment for paint-shop VOCs. Exhaust is heated to 760-850°C, oxidizing VOC molecules into harmless CO₂ and water vapor.

  • Destruction & Removal Efficiency: >99%
  • Ceramic heat-storage media: ≥95% thermal recovery
  • Three-chamber or rotary-valve; 10,000-100,000 Nm³/h
Zeolite adsorption rotor

Zeolite Adsorption Rotor Concentrator

For high-flow, low-concentration streams, a hydrophobic zeolite rotor concentrates the pollutant 10-15× before oxidation — shrinking the downstream oxidizer and its energy demand. Learn more about the KPR rotor →

  • Concentration ratio: 10-15×
  • Flow range: 50,000-500,000 Nm³/h
Wet scrubber tower

Wet Desulphurization & Scrubbers

Wet desulphurization / denitrification scrubbers handle inorganic gases and water-soluble pollutants, with corrosion-resistant construction.

  • Targets: SOx, NOx and water-soluble VOCs
  • Particulate / paint-mist removal >99.5% with dry filters

After-Sales & Maintenance Service

RTO / TNV Service

Inspection, ceramic media replacement, valve overhaul and TNV repair to restore destruction efficiency.

Fan Vibration Analysis

Vibration measurement and diagnostics for exhaust and supply fans to prevent unplanned downtime.

Adsorption Rotor Regeneration

Rotor cleaning, regeneration and performance recovery to maintain concentration ratio.

Compliance Audit

Emission testing support and CEMS integration for ongoing regulatory compliance.

Emission Compliance Standards

GB 37822-2019GB 16297-1996GB 14554-1993EU Directive 2010/75/EUISO 14001

Abatement Route Selection

Duty profileRecommended routeNotes
High flow, low concentration (booth/oven mixed exhaust)3-stage filtration + zeolite rotor concentration + RTOMainstream route, lowest operating energy
Medium-high concentration (dedicated oven exhaust)Direct RTO / TNVNo concentrator needed
Booth exhaust with paint oversprayWet scrubbing (venturi/water curtain) + demist + abatementProtects downstream equipment
Intermittent, low flow (mix room, spot repair)Activated carbon + catalytic oxidation (RCO) or regenerationLow investment, flexible starts
Sulphur/halogen-bearing streamsPre-treatment + scrubbing + oxidation (catalyst protection)Case-specific materials and temperatures

Routes compared on flow, concentration, composition, footprint and emission limits — multi-route energy and CAPEX comparisons provided.

Frequently Asked Questions

What is the mainstream process for paint-shop VOC abatement?

For high-volume low-concentration booth and oven exhaust, the mainstream route is three-stage filtration + zeolite rotor (adsorption concentrator) + RTO regenerative thermal oxidation + heat recovery, achieving 99%+ destruction efficiency with low operating energy.

How do the zeolite rotor and RTO work together?

The adsorption rotor concentrates VOC by 8-20 times, shrinking the airflow entering the RTO and cutting its fuel consumption by over 80%; the desorbed high-concentration stream is oxidized above 760°C in the RTO before compliant stack release.

What is the KPR adsorption rotor?

KPR (Konzentrator) is a zeolite concentration rotor at the heart of two-stage VOC systems. The wheel divides into adsorption, desorption and cooling zones in continuous rotation. See the KPR Rotor product page.

How to determine exhaust system airflow and configuration?

Sizing requires exhaust analysis: airflow, VOC species and concentration, temperature, humidity and dust load. SYZOY provides on-site survey, system design, equipment manufacturing and compliance validation as one service.

Discuss your project with our engineers

Nearly 30 coating lines delivered. Let us help you plan, build or upgrade yours.

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