Turning Venting into Value.
From Waste - to Revenue Stream

Most biogas plants already separate high-purity biogenic CO₂ as part of biomethane upgrading. Today, this CO₂ is typically vented to the atmosphere — even though it is one of the easiest and lowest-cost CO₂ streams to capture.

With Carbon Capture, Utilisation and Storage (CCUS) and DecarbonICE, this changes.

Why CCUS for Biogas?

By capturing and permanently storing biogenic CO₂, biogas plants can:

  • Generate carbon removal credits (BECCS)

  • Access EU ETS and national CCS schemes

  • Sell removals into voluntary carbon markets

  • Create a new revenue stream independent of gas prices

Most biogas plants can transform their CO₂ stream into a strong, recurring income opportunity.

Why biogas is perfect for CCUS

Biogas plants are uniquely positioned for cost-efficient carbon removal:

High CO₂ Concentration

The CO₂ is already separated from methane and relatively pure.

Existing Value Chain

Methane upgrading is already paid for through biomethane sales.

Stable Volumes

Medium-sized plants typically generate ~13,000 tons CO₂/year with limited seasonal variation.

Political Tailwinds

EU ETS is expected to include BECCS from ~2028, and national carbon removal schemes are emerging.

Premium Carbon Removals

Biogenic CO₂ stored permanently qualifies as carbon removal — often priced higher than avoided emissions.

How it works

  1. CO₂ is purified and liquefied at the biogas plant

  2. Liquid CO₂ is converted into dry ice

  3. Dry ice is loaded directly into DecarbonICE containers

  4. Containers are transported by truck (two per vehicle)

  5. At the hub, dry ice is reliquefied for storage or utilisation 

All modules are containerised and easy to integrate at existing biogas sites.

38% lower transport cost using DecarbonICE 

The longer the distance, the larger the advantage

The Challenge: Transport & Infrastructure

Capturing CO₂ is only part of the equation.

Biogas plants are typically:

  • Small to medium scale

  • Geographically dispersed

  • Not connected to pipelines

  • Far from storage hubs

Traditional liquid CO₂ transport in pressurised ISO tanks is:

  • Capital intensive

  • Logistically complex

  • Limited to one tank per truck

  • Expensive at small scale 

This is where DecarbonICE changes the economics.

The DecarbonICE Solution

Modular, Safe & Scalable CO₂ Infrastructure

DecarbonICE converts liquid CO₂ into solid CO₂ (dry ice) and transports it in insulated 20-foot containers at near atmospheric pressure  

What’s in it for Biogas Operators?

Higher Net Carbon Margin

1

Lower transport cost means more of the ETS / credit price stays with the biogas plant.


Low CAPEX Entry

2

Solid CO₂ containers cost ~10,000 € per unit vs. 120,000 € for liquid ISO tanks. Lower upfront investment = faster decision making.


Two Containers per Truck

3

Weight optimisation allows two DecarbonICE containers per truck, doubling logistics efficiency


Safer Operation

4

Transport at near atmospheric pressure improves safety compared to high-pressure liquid tanks


Fully Modular & Intermodal

5

Truck, train, barge or ship — designed for flexible scaling.


  • A New Infrastructure for Distributed Emitters

    DecarbonICE is designed specifically for:

    Small & medium emitters

    Distributed biogas plants

    Regions without pipeline infrastructure

    Early-stage CO₂ markets

    It removes the traditional barrier to entry for CCUS.