HHG Series
Hydrogen Generators

On-site hydrogen from biogas, ammonia, and other feedstocks
High-purity hydrogen production on-site from multiple feedstocks, built for industrial sites, biogas plants and ports.
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Capacity
50–250 Nm³/h
Output Pressure
Before Compression
9 bar
Hydrogen Purity
Up to 99.999%

Product overview

Hydrogen from available feedstocks

HHG converts your feedstock into high-purity hydrogen, including biogas, natural gas, LPG, and propane.
Metacon's HHG systems are designed for decentralized hydrogen production where suitable feedstocks already exist. Instead of relying on large power connections, hydrogen is produced from biogas, biomethane, natural gas, LPG, or propane using catalytic steam reforming and integrated purification. Similar products for methanol or ammonia are also an option. This makes HHG an attractive solution for industrial sites, wastewater treatment plants, biogas producers, ports and energy hubs where feedstocks are readily available but grid capacity may be limited.

Benefits

  • Output up to 600 kg/day
  • Grid electricity not required
  • Fully integrated, ready-to-operate unit
  • CO₂ concentrated for CCS integration
  • CE-marked, containerized deployment

INSIDE THE HHG HYDROGEN GENERATOR

Built around patented HIWAR® technology
Every HHG system integrates feedstock conditioning, reforming, purification and automation into a complete hydrogen production unit. At its core is Metacon’s patented HIWAR® reactor technology.
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[[Fuel Pretreatment]] Every HHG system integrates feedstock conditioning, reforming, purification and automation into a complete hydrogen production unit. At its core is Metacon's patented HIWAR® reactor technology.
[[HIWAR® Reforming Reactor]] Patented heat-integrated reactor design where heat generation and reforming occur in close proximity for efficient thermal management.
[[Catalytic Combustion]] Flameless catalytic combustion provides process heat in a controlled and efficient manner.
[[PSA Purification]] Produces hydrogen with purity levels up to 99.999%.
[[Process Automation]] Integrated control systems enable autonomous operation and remote monitoring.

METACON’S PROJECT SCOPE

One partner from FEED to operation

Hydrogen projects involve multiple disciplines, suppliers, and interfaces. Metacon reduces project risk by supporting the complete project lifecycle.

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Support includes

  • FEED participation
  • Engineering
  • Automation & controls
  • Plant integration
  • Equipment supply
  • Site installation support
  • Commissioning
  • Operator training
  • Long-term service agreements

Tech spec

Technical specifications

Key capacity, configuration, technology, and integration parameters for the Metacon HHG hydrogen generator product line.

Parameter

Specification

  • Feedstocks

    Biogas, biomethane, natural gas, LPG, or propane. Units optimized for ammonia or methanol is an option.

  • Capacity

    50 Nm³/h or custom models

  • Hydrogen purity

    >99.999 vol.% (with PSA)

  • Output pressure

    9 bar(a) before compression

  • Configuration

    Containerised or skid-mounted

  • Automation

    Integrated process control

  • Carbon capture compatibility

    Available

Why metacon

Four strong reasons to work with Metacon

From technology selection to long-term operation, Metacon helps reduce project risk, simplify execution, and maximize performance at every stage.

Proven at scale

Electrolysis solutions built on PERIC’s alkaline electrolyser technology, combining more than 60 years of development with experience from over 2,000 systems worldwide.

Lower cost of hydrogen

Combining large-scale alkaline electrolysis, integrated automation and long stack lifetime to support competitive hydrogen production.

One partner for the full lifecycle

One point of responsibility from engineering and integration through commissioning, service and long-term support.

European compliance

CE-certified and delivered in accordance with European regulations, documentation and safety requirements.

Service & support

Maximizing uptime throughout the plant lifecycle

Reliable hydrogen production depends on proactive maintenance and fast support.

Metacon offers tailored service agreements covering preventive maintenance, remote monitoring, spare parts management, training, and technical support.

Included services

  • Preventive maintenance
  • Spare parts programs
  • Operator training
  • Remote diagnostics
  • 24/7 support options
  • Performance optimization
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TYPICAL APPLICATIONS

Designed for large-scale hydrogen production

HHG50 and WWTP with panel_mockup_AI (1)

Biogas and wastewater treatment

Convert locally available biogas into high-purity hydrogen directly at the production site.
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Industrial manufacturing

Supply hydrogen for industrial processes without relying on large-scale grid capacity or delivered hydrogen.
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Ports and maritime energy systems

Produce hydrogen on-site for port operations, maritime applications and local energy infrastructure.
WaW

Transport and refuelling infrastructure

Enable decentralized hydrogen supply for fuel cell vehicles, fleets and refuelling stations.
Illustration of 7,5 MW electrolyzer plant in Romania

Energy utilities and local energy hubs

Use existing gas infrastructure or available feedstocks to produce hydrogen close to demand.

Do you have suitable feedstocks?

Talk with our specialists about converting biogas, natural gas, or other feedstocks into hydrogen on-site, without depending on grid capacity or electricity pricing.
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