HYPLASMA® TECH · METHANE PYROLYSIS

Clean hydrogen and carbon black, from (bio)methane.

Modular, turnkey production units adapted to industrial operating requirements: the plasma arc splits methane into hydrogen and solid carbon, with no combustion and no direct CO₂.

< 3×

Less electricity than electrolysis

per kilogram of hydrogen produced

0 kg CO₂

Direct emissions

no combustion, no oxidation

1–6 barg

Operating pressure

compact, pressurised design

2 sizes

100 kW unit · 2 MW plant

containerised, or a three-floor structure

How it works

CH₄ → 2 H₂ + C. No combustion, so no CO₂.

The plasma arc splits methane directly into hydrogen and solid carbon. Unlike steam reforming, nothing is burned or oxidised.

1

(Bio)methane in — natural gas, biogas or flare gas, 1–6 barg.

2

Three-phase plasma arc — above 3,000 °C; the arc’s motion mixes the gas, no oxygen involved.

3

Hydrogen and solid carbon out — two valuable products, zero direct CO₂.

1

(Bio)methane in — natural gas, biogas or flare gas, 1–6 barg.

Methane storage tank feeding the HyPlasma unit
2

Three-phase plasma arc — above 3,000 °C; the arc’s motion mixes the gas, no oxygen involved.

Containerised HyPlasma unit powered by renewable electricity from a wind turbine
3

Hydrogen and solid carbon out — two valuable products, zero direct CO₂.

Hydrogen storage rack and solid carbon collected in a bin
Inside the unit

From gas skid to carbon filter.

The whole process in one containerised unit: power and control, gas feed, the plasma reactor and the carbon separation.

Inside the HyPlasma unit: control cabinets, gas skid, plasma torch and carbon filter

Control cabinets

Power supply and control of the plasma torch.

Gas skid

Meters the methane, and the inert gas used for start-up and cleaning.

Plasma torch

The three-phase torch on top of the reactor, where methane splits into hydrogen and carbon.

Carbon filter

Separates the solid carbon from the hydrogen; a screw conveyor carries it out.

Control cabinets inside the HyPlasma unit

Control cabinets

Power supply and control of the plasma torch.

Gas skid with methane and inert gas lines

Gas skid

Meters the methane, and the inert gas used for start-up and cleaning.

Three-phase plasma torch on top of the reactor

Plasma torch

The three-phase torch on top of the reactor, where methane splits into hydrogen and carbon.

Carbon filter separating solid carbon from hydrogen

Carbon filter

Separates the solid carbon from the hydrogen; a screw conveyor carries it out.

Technical features

The most cost-effective route to clean hydrogen.

Solid carbon powder and a hydrogen molecule: the two products of HyPlasma

Combined valuable products

Clean hydrogen and high-value solid carbon in a single process, without direct CO₂. Conventional routes rely on separate, energy-intensive processes for hydrogen production and carbon handling.

Competitive cost

Low, stable production costs compared with conventional low-carbon hydrogen. Methane pyrolysis needs far less electrical energy per kilogram of hydrogen than water electrolysis, and the solid carbon co-product adds a revenue stream. Limited maintenance, economical consumables and no AC/DC rectifier keep the architecture simple.

Aerial view of a forest meeting a turquoise lake

Environmentally friendly

A methane pyrolysis process without combustion: no direct CO₂ at the point of hydrogen production. Carbon is recovered as a product rather than released as CO₂ — in line with industrial climate-neutrality objectives.

3D render of the HyPlasma 2 MW plant on its steel structure

Low footprint

An optimised, pressurised design: operating at up to 6 barg reduces internal gas volumes and downstream equipment size, so the plant fits existing industrial sites where space is critical.

Competitive cost

What a kilogram of hydrogen costs in Europe.

In 2025, HyPlasma® is on par with steam methane reforming once SMR’s carbon cost is counted, and 2.6 times cheaper than electrolysis. Point at a year for every value.

Sources: European Hydrogen Observatory (2024); BloombergNEF; Trading Economics (EU ETS annual average); Burckhardt Compression. HyPlasma®: Plenesys estimate. EU averages, € per kg of hydrogen.

SEE THE REACTION

Methane in. Hydrogen and solid carbon out.

This animation illustrates the methane pyrolysis reaction inside the HyPlasma® reactor, resulting in hydrogen and solid carbon.

Specifications

Two sizes, side by side.

Specifications can be adapted to project-specific requirements.

Cut-away of the containerised HyPlasma 100 kW unit: two stacked containers with the power supply, gas feed, reactor and carbon filter

100 kW unit

Containerised · 2 containers

Rendering of a 2 MW HyPlasma® plant

2 MW plant

Three-floor structure · ~100 m²

100 kW unit

30 – 100 kW

2 MW plant

2 MW

100 kW unit

7 kg/h59 t/year

2 MW plant

140 kg/h1,190 t/year

100 kW unit

21 kg/h179 t/year

2 MW plant

380 kg/h3,570 t/year

100 kW unit

1 – 6 barg

2 MW plant

1 – 6 barg

100 kW unit

Natural gas, biogas, flare gas…

2 MW plant

Natural gas, biogas, flare gas…

100 kW unit

380/400 VAC · 3-phase · 50 Hz

2 MW plant

380/400 VAC · 3-phase · 3 MVA

100 kW unit

Graphite electrodes · inert gas for start-up and cleaning

2 MW plant

Graphite electrodes · inert gas for start-up and cleaning

100 kW unit

2 containersContainerised

2 MW plant

~100 m²3-floor structure

Highlighted rows are the two product outputs: hydrogen and solid carbon.

SECTORS

Two products, two markets.

Agricultural silos and biogas installation

Hydrogen production

Low-carbon H₂ on site, from the gas you already have.

Carbon black powder

Carbon production

Solid carbon as a product, not an emission.

The Plenesys range of three-phase plasma torches
Our products

Plasma Torch

The three-phase torch at the heart of every HyPlasma® unit.

Rendering of a HyPlasma® unit on an industrial site
Services

Pilot testing

Measured yields and carbon grades on your own gas.

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