Page 30 - Sigmaroc Annual-Report 2023

SIGMAROC ANNUAL REPORT 2023 STRATEGIC REPORT
Aqualung
In 2023, SigmaRoc successfully installed and commissioned its first carbon capture unit at Nordkalk’s site in Köping, Sweden. The fully scalable carbon capture system, utilising Aqualung’s innovative membrane technology, is the first-ever implementation of its kind in the industry.
Aqualung carbon capture unit in Köping, Sweden
The carbon capture system has been developed by Aqualung, a leading provider of membrane-based carbon capture and separation technology, based in Norway.
Over the course of the preceding year, SigmaRoc reviewed an array of technologies including amine absorption, solid absorption, membrane and cryogenic. The Aqualung membrane technology was considered best suited for the Group’s operations based on the following factors: small footprint, low CapEx and operating costs, and a relatively low complexity and efficient solution. The system is modular and fully scalable, allowing SigmaRoc significant flexibility in the roll out of the solution.
The Aqualung module installed in Köping can capture up to 25% of the process emissions emitted from a standard kiln and was initially designed as a ‘catch and release’ system to demonstrate the durability and efficiency of the membranes. The unit is able to capture CO2 with a purity of 96% through just 2 stages and has since been connected to a pilot purification module to simulate settings required to produce higher purities of CO2 for different end use applications
that go beyond sequestration requirements. We believe review of alternative application is required whilst European Governments and third parties develops legislation, policies and sequestration infrastructure including pipeline, storage facilities and portside facilities to allow for commercially available sequestration.
SigmaRoc is working with various businesses and solution providers with regards to the end use of CO2, including being involved with the NICE (Norvik Infrastructure CCS East Sweden) project to explore all CO2 utilisation and sequestration options.
Nordkalk also secured part-funding from the Swedish Energy Agency for the implementation and scaling of the Köping carbon system with the intention to capitalise on the learning from the engineering, commissioning and operation phase of the initial module.
SigmaRoc will continue to update on the progress as well as roll-out plans to implement the technology in all of Nordkalk’s operating kilns by 2030.
"As a Group we are always on the lookout for interesting technologies that can help us advance our business and our operations. Aqualung is clearly that type of technology. Partnering with them to potentially decarbonise our operations well ahead of not just our timeline but probably the entire industry, is very exciting and the result of intense work across the Group, in particular at Nordkalk."
CHARLES TRIGG
CTO