Efficiency. Redefined.

Introducing the ClimaHtech Compressor – the next-generation hydrogen compression technology.
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On average 28% energy savings, 30% lower total cost of ownership, patent-protected system ready for global deployment.

REDEFINING HYDROGEN
COMPRESSION FOR THE NET ZERO ERA

Hydrogen has the potential to power a cleaner, greener future — but its widespread adoption depends on solving one of the biggest hidden challenges: efficient, reliable, and scalable compression.

Today’s incumbent diaphragm and mechanical compressors are complex, costly to maintain, prone
to failure during intermittent use, and inefficient at managing heat — especially under fluctuating operating conditions.

CATAGEN’s ClimaHtech Compressor breaks through these barriers. By removing mechanical interference and replacing it with a proprietary liquid piston architecture, we’ve designed a simpler, more flexible system that lowers energy use, reduces operating cost  — all while utilising standard componentry and handling pressures from 30 to 700 bar.

THE TECHNOLOGY

Patent Protected Liquid Piston Hydrogen Compressor

At the heart of the ClimaHtech Compressor is a hybrid liquid piston design, delivering best-in-class thermodynamic efficiency with concurrent cooling and compression in a compact footprint.

Compared to traditional technology, the ClimaHtech COMPRESS system uses pumped liquid to compress hydrogen directly. This innovation reduces the challenges of mechanical wear and downtime, and eliminates overheating.

Key Innovations

This patented approach — developed by ClimaHtech COMPRESS’s leading team of engineers in thermodynamics, fluid mechanics and advanced control systems — is ready to scale.

In-process Cooling:
Liquid piston design supports high surface area heat rejection with no mechanical interferences.

Flexible Compression Ratio & Rates:
Intelligent controls allow real-time tuning to optimise for energy efficiency and performance.

Active Hydrogen Dispensing:
Dispenses hydrogen out of storage tanks at exact target pressure using the liquid piston. Ideal for H2 refuelling.

Compact, Modular Design:
Built for static installations, mobile systems, and multi-stage refuelling scenarios.

We’ll showcase these results in action — watch the video on-site featuring real test data and the compressor in operation

USE CASES

Built for Every Stage of the Hydrogen Value Chain 

Hydrogen Refuelling Stations

  • Handles intermittent operations.
  • Offers active dispensing for precision refuelling at 350 and 700 bar.
  • Compatible with both cascade and booster system architectures.

Electrolyser Integration

  • Matches variable hydrogen outputs from renewable-powered electrolysis or other hydrogen applications such as CATAGEN’s BIOHGEN reactor.
  • Offers optimised compression for dynamic load profiles.

    Storage & Trailer Filling

    • Designed for scalable static installations or mobile platforms.
    • Flexible architecture supports single and multi-stage configurations.

      Mobile Refuelling Units

      • Liquid piston and cascade storage
      • Fully integrated with LP storage and H35 nozzle options.
      • Low-noise solution for on-road or remote deployment.

          ABOUT CATAGEN

          CATAGEN is a UK-based Net Zero Technology company developing breakthrough climate innovations to decarbonise transport and industry.

          Our mission is to disrupt legacy energy systems through elegant engineering — accelerating the shift to a clean, hydrogen-powered future.

          From our Belfast R&D lab, our team of award-winning engineers and scientists has developed a suite of clean energy technologies — with the ClimaHtech Compressor leading the way.

          MEET THE TEAM

          Stephen Treanor

          CEO ClimaHtech COMPRESS

          Tom Morris

          Senior Engineer ClimaHtech Compress

          Matthew Boyd

          Senior Engineer ClimaHtech Compress

          Nick Kennedy

          Engineer ClimaHtech Compress

          Dr Andrew Woods

          CEO and Co-Founder CATAGEN

          Roy Douglas

          CSO and Co-Founder CATAGEN

          Dr Matthew Elliott 

          CTO CATAGEN

          Sonya Kerr

          CCO CATAGEN

          GET IN CONTACT

          Let’s drive innovation together

          Titanic Quarter Belfast

          +44(0)289045510

          Knowledge Hub