Carbon Capture, Utilisation & Storage (CCUS)
Carbon Capture, Utilisation & Storage (CCUS) is the process of capturing CO2 from energy intensive processes before it enters atmosphere and finding a market use or transport to a storage facility (normally underground in geological caverns).
Long-term storage of CO2 in a geological formation is still relatively new as a concept but will play a huge part in the net-zero efforts in the future. However, there are possibilities to capture and utilise the CO2 in a profitable way.
Carbon capture is a key focus globally with many government incentives encouraging investment in carbon capture technology.
CO2 Fertilisation for Greenhouses
Selective Catalytic Reduction & CO Catalyst
- Considers flue gas from power generation as the input
- Ideal for CO2 fertilization for use in greenhouses to increase crop yield
- Removal of toxic components like NOx and CO
- CO2 concentration is equivalent to the concentration of the exhaust gas (circa 5% for natural gas operation)
- Doesn’t increase the CO2 concentration therefore, not suitable for liquification and transportation
- Not suitable for biogas operation due to biogas contaminants (H2S) and variability in feedstock materials
- Consumables to consider
- Urea
Food and Drink Grade Carbon Dioxide
Chemical Absorption
- Considers flue gas from engine as the input
- Ideal for low CO2 concentrations gases
- Can achieve high purity CO2 requirements such as food or drinks standards
- Still requires removal of toxic components (NOx & CO) with equipment similar to Selective Catalytic
- Reduction & CO Catalyst solution being used
- Uses solvents such amines or hot potassium carbonates to capture CO2
- High capital and operational expenditure, however it is the only current commercially viable system to achieve high purity CO2 from hot flue gases
- Consumables to consider:
- Steam (for regeneration of solvent)
- Electrical
- Top up and consumptions of chemicals
- Cooling water
Reliably Monetise Your Biogas
CO2 Recovery from Biogas Upgrading
- Considers off gas from biogas upgrading (i.e., CO2 separation) as the input
- Ideal for high CO2 concentration input gases
- Can achieve high purity CO2 requirements such as food or drinks standards
- Will increase the recovery efficiency of the biogas upgrading system by separating the last part of methane in the offgas and recirculating to the inlet of the upgrading system
- Consumables to consider:
- Electrical
- Absorbents for purification (minor amounts)
High Grade Calcium Carbonate
Advanced Mineralisation
(Proof of Concept)
- Mineralisation of carbon dioxide to high grade precipitated calcium carbonate
- Utilisation of brine and alkaline solutions
Carbon Recovery Case Studies
Inauguration of Innovative Carbon Negative Biogas Upgrading Plant at Sanamethan, France
Sanamethan’s innovative carbon negative biogas and CO2 recovery plant delivered by Clarke Energy in France has been inaugurated.
Liberty Coca-Cola to Recover CO2 Through High Efficiency Quadgeneration in New York
Liberty Coca-Cola select Clarke Energy to deliver a turn-key quadgeneration plant generating electricity, heat, cooling and recovering carbon dioxide (CO2).
Clarke Energy to Demonstrate Carbon Negative Carbon Capture System at Severn Trent Water after Winning Ofwat’s “Water Breakthrough Challenge”.
Clarke Energy part of consortium including Severn Trent, CCM, Brunel University, United Utilities Southern Water, Scottish Water and Wonderful on Tap that win Ofwat’s “Water Breakthrough Challenge”
Any Further Questions?
If you have any technical questions that need answering, would like to arrange to speak to a sales advisor or book a feasibility study.