Custom Built in Ireland

Our Biochar Retorts

At Carbon Resources, we manufacture both mobile and fixed biochar retorts. A mobile unit is a carefully designed, portable system used to perform on-site pyrolysis. This process converts organic material – agricultural residues, wood waste and other biomass materials – into valuable products: biochar, bio-oil, syngas and wood vinegar.

A look at our Manufacturing process

Our pyrolysis units offer many great benefits:

On-site Biomass Processing:

Our mobile units enable biomass processing at or near the source, slashing transportation costs and emissions.

Local Resource Utilisation:

By processing biomass locally, your retort can contribute to the efficient use of locally sourced resources in your area.

Flexible & Adaptable:

The portability of our mobile units allows for swift adaptation in response to different biomass sources and facilitates meeting biochar demand across various locations.

Carbon Sequestration:

The biochar produced can be used for enhancing soil quality and contributes to carbon sequestration within the soil, aiding in long-term environmental sustainability.

Our mobile retorts can be easily relocated, offering flexibility and convenience. Enquire today to find out how you can become the owner of a biochar retort from Carbon Resources and start producing your own biochar!

Our Biochar Kiln Design:

carbon removal credit potential

Selling CRCs

Carbon Offsetting

Our custom-built retorts allow you to make your own biochar, which effectively sequesters carbon in the soil, preventing its release into the atmosphere, while offsetting carbon emissions. This process offers biochar producers – whether individuals, farmers or businesses – the potential to profit from selling valuable Carbon Removal Credits (CRCs), enabling others to balance their carbon footprint. Therefore, your production of biochar not only contributes to environmentally sustainable practices but also presents an opportunity for financial gain.

How your biochar retort works:

Biochar is produced via a process called “pyrolysis”, which involves heating organic materials in a low-oxygen environment. This process follows these three key steps:

Feedstock Selection:

Carefully chosen organic materials like wood chips, agricultural residues, garden trimmings and other biomass sources serve as the foundation for biochar production, ensuring quality and efficacy in the final product.


The selected feedstock undergoes controlled heating within an oxygen-limited container. This prevents full combustion, instead breaking down the organic material into biochar. The duration and temperature of pyrolysis influence the characteristics of the resulting biochar product.


Once pyrolysis is complete, the biochar is cooled preventing any subsequent reactions or burning. By swiftly reducing the temperature within a carefully managed environment, the biochar is stabilised, preserving its intended properties and ensuring its integrity for various applications.

The resulting biochar is a stable form of carbon that, when mixed with soil, can enrich its properties and deliver long-term benefits. This process is hailed as a carbon-negative technology since it sequesters carbon that would otherwise be emitted into the atmosphere if the biomass underwent conventional decomposition or burning.

Environmentally friendly

Energy efficient

The mechanism located at the rear of our machines redirects the noxious gases generated from the retort into the burn chamber where they’re ignited, sustaining the burning process, thereby preventing these fumes from entering the atmosphere. This feature eliminates the need for additional fuel in the burn chamber, making our units exceptionally energy-efficient and environmentally friendly. In the rear tank, you can also collect wood vinegar and bio-oil – both byproducts of the pyrolysis process.