A new source of high purity liquid CO2.

An independent CO2 supply chain for industrial and commercial applications. High specification liquid CO2, purified to 99.9%.

99.9%Purity
-49°C / 7 barStorage conditions
ISO tank / cryogenicDelivery format

Liquid CO2 at industrial specification.

CO2 is captured onboard commercial vessels using post-combustion amine absorption, then purified and liquefied for storage in ISO tanks. The process is the same proven technology used to produce commercial CO2 from industrial sources onshore.

Each batch is tested and documented to ensure consistency and traceability. We will work with you to meet all your specific procurement, audit and compliance requirements.

Detailed impurity profiles are available on request.

Technical Specification

Purity≥ 99.9% v/v
Capture methodPost-combustion amine capture
Storage temp-49.0°C
Storage pressure7.0 bar (gauge)
StateCryogenic Liquid
Delivery formatISO Tank / Road Tanker
DocumentationFull Batch Analysis (CoA)
How supply works

From voyage to your facility.

1

Production

CO2 is captured and liquefied during the voyage using Onboard Carbon Capture Systems (OCCS).

2

Offloading

At designated ports, liquid CO2 is transferred under controlled conditions via cryogenic lines to shore-side storage or directly to road tankers. Chain of custody is maintained throughout the transfer process.

3

Buffer storage

Liquid CO2 is held in dedicated cryogenic storage facilities at port, managed to maintain product integrity and enable dispatch on a scheduled or on-demand basis.

4

Delivery

Distribution to buyer facilities via road tanker or ISO container, on scheduled or on-demand terms.

5

Quality assurance

We operate a documented quality management process from capture through to delivery and welcomes buyer specific audit and compliance requirements. Every delivery is accompanied by a Certificate of Analysis.

Why consider a new source?

Independent Supply

Conventional CO2 supply is concentrated among a small number of producers and tied to industries in structural decline. Adding an independent source reduces exposure to the plant closures, gas price spikes and maintenance shutdowns that have caused repeated shortages.

Consistent Production

Maritime carbon capture produces CO2 continuously as vessels operate. Production is not seasonal, not dependent on gas prices and not affected by the economics of unrelated chemical processes.

Product Equivalence

The CO2 is produced using the same amine-based capture technology used onshore. At 99.9% purity it is functionally equivalent to conventional merchant CO2. The molecule is the same regardless of source.

Flexible Terms

Offtake arrangements are structured around buyer requirements. Volume, frequency and contract terms are agreed directly.

What buyers need to know

Product Quality
CO2 is purified to ≥ 99.9% v/v through a controlled capture and liquefaction process. Contaminant levels including moisture, oxygen, nitrogen, hydrocarbons and sulphur compounds are monitored throughout production. Each batch is delivered with a Certificate of Analysis documenting purity and impurity profile. Detailed specifications are available on request.
Supply Model
We offers flexible offtake arrangements structured around buyer requirements, from regular scheduled deliveries to ad-hoc supply. Volume, frequency and contract terms are agreed directly with each buyer.
Quality Management
We operate a documented quality management process from capture through to delivery. Product is continuously monitored during production and batch tested prior to transfer. Full traceability is maintained across the supply chain. We welcome buyer specific audit and compliance requirements.
Logistics & Delivery
Liquid CO2 is offloaded at port to dedicated cryogenic storage and distributed via road tanker or ISO container through specialist logistics partners. All transport equipment is maintained to prevent cross contamination. Delivery is available on a scheduled or on-demand basis.
Supply Continuity
Buffer storage at port provides continuity between vessel arrivals. Buyers are notified in advance of any changes to scheduled deliveries. We work with buyers to plan supply around their operational requirements.

Applications for high-purity liquid CO2

Dry ice production

Feedstock for dry ice pellets and blocks used in cleaning, blasting and temperature controlled shipping.

Welding & Fabrication

Shielding gas for MIG and MAG welding processes in metal fabrication and manufacturing.

Water Treatment

pH control and remineralisation for municipal and industrial water treatment facilities.

Cold Chain Logistics

Cryogenic refrigerant for pharmaceutical and perishable food transport.

Food & Beverage

Carbonation, modified atmosphere packaging and cryogenic freezing for the food and beverage processing sector.

Synthetic Fuels & Chemicals

Feedstock for sustainable aviation fuel (SAF) and methanol production paths.

Discuss Supply.

Contact us to discuss your requirements, specifications and how Sequestral can fit into your supply chain.

Get in Touch →