In industries where compressed air comes into direct contact with products—such as food & beverage, pharmaceuticals, electronics, and medical applications—air purity is not just a specification, but a critical control point for product safety and process integrity.

While conventional oil-free compressors reduce the risk of contamination, they do not eliminate hydrocarbons already present in ambient intake air. This is where catalytic oil-free conversion technology sets a new benchmark.

ADEKOM’s ETC (Eco Tec Converter) integrated Class 0 oil-free screw compressors are designed to deliver truly oil-free, hydrocarbon-free, and near-sterile compressed air, combining the efficiency of oil-injected compression with the purity of advanced catalytic treatment.

How ETC Catalytic Technology Works

At the core of ADEKOM’s ETC system is a high-performance catalytic conversion reactor, operating at controlled elevated temperatures.

The process follows a total oxidation principle:

• Hydrocarbons (oil vapor, aerosols, ambient contaminants) are chemically converted into CO₂ and H₂O through catalytic oxidation
• A specially engineered porous catalyst (surface area up to ~200 m²/g) ensures maximum reaction efficiency
• Operating temperature typically ranges between 170–250°C, enabling both oxidation and sterilization

Unlike filtration technologies that only capture contaminants, catalytic conversion destroys hydrocarbons at the molecular level, ensuring consistent performance regardless of inlet conditions

At the same time, the elevated temperature environment effectively eliminates bacteria and microorganisms, producing compressed air that is not only oil-free but also hygienically safe

Why “Oil-Free Compression” Alone Is Not Enough

A common misconception in the industry is that oil-free compressors inherently deliver oil-free air.

In reality:

• Ambient intake air already contains hydrocarbons (from traffic, industrial emissions, etc.)
• Even oil-free compressors cannot remove these contaminants
• Hydrocarbon levels in ambient air can exceed ISO Class 1 limits in real environments

Therefore, true Class 0 air requires not only oil-free compression, but also downstream purification.

This is precisely why catalytic conversion technology has been widely adopted in high-end applications worldwide.

Integrated ETC Design: Beyond Standalone Converters

While few companies offer catalytic converters as standalone units, ADEKOM takes a step further:

Fully Integrated Class 0 Oil-Free Screw Compressor

• Built-in ETC catalytic conversion module
• Optimized thermal management and heat recovery
• Compact, skid-mounted or packaged design
• Seamless control via integrated PLC system

This integrated approach delivers:

• Lower installation complexity
• Reduced footprint
• Improved overall system efficiency
• Plug-and-play reliability

With over 18 years of global field experience, ADEKOM ETC compressors have been successfully deployed in demanding applications worldwide.

Key Advantages Over Other Oil-Free Technologies

1. Superior Energy Efficiency

Compared to:

• Oil-free piston compressors
• Oil-free scroll compressors
• Oil-free tooth compressors
• Dry oil-free screw (two-stage) compressors

ETC systems leverage oil-injected compression efficiency + catalytic purification, resulting in:

• Lower specific energy consumption (kW/Nm³)
• Reduced lifecycle operating cost

2. Minimal Maintenance & No Major Overhaul

• No catalyst consumption or saturation
• No frequent replacement of filter media
• No requirement for periodic airend overhaul typical in dry oil-free compressors

Catalytic systems operate as a non-consumable chemical process, ensuring long-term stability and reduced maintenance cost

3. Broad Pressure Range Capability

ADEKOM ETC compressors cover a wider operating envelope:

• Standard: up to 13–15 bar(g)
• Extended: 25–30 bar(g) for medium-pressure applications

This is a key advantage over many traditional oil-free technologies with limited pressure capability.

4. True Class 0 Air – Independent of Conditions

• Achieves ISO 8573-1 Class 0 oil-free standard
• Performance remains stable regardless of:
  • Ambient air quality
  • oil carryover fluctuations
  • humidity or load variations

5. Near-Sterile Air for Critical Industries

• High-temperature catalytic reaction ensures bacteria-free compressed air
• Ideal for:
  • Food & Beverage
  • Pharmaceutical & Biotech
  • Medical applications
  • Electronics manufacturing

6. Eliminates Both Internal and External Hydrocarbons

Unlike conventional oil-free compressors:

✔ Removes oil from compression process

✔ Eliminates hydrocarbons from intake air

➡ Result: truly clean compressed air, not just “oil-free by design”

ADEKOM ETC Class 0 oil-free compressors are widely used in:

• Food & Beverage processing
• Pharmaceutical and biotech production
• Electronics and semiconductor manufacturing
• Medical and healthcare systems
• PET bottle blowing
• High-purity process industries

Conclusion: Redefining Oil-Free Air Standards

Catalytic conversion technology represents a fundamental shift:

From “oil-free compression” → to “guaranteed hydrocarbon-free air quality”

By integrating ETC catalytic technology directly into high-efficiency screw compressors, ADEKOM delivers a solution that combines:

• Energy efficiency
• Operational reliability
• Minimal maintenance
• True Class 0 purity

For industries where compressed air quality directly impacts product quality, safety, and compliance, ADEKOM ETC integrated oil-free screw compressors provide a future-proof solution.