Cool Planet Technologies (CPT) recently demonstrated its innovative modular carbon capture system at a pilot facility in Grimsby. Attendees witnessed real-time monitoring of CO2 levels, both pre- and post-capture, facilitated by Vaisala MGP241 inline measurement probes.
CPT, in partnership with Helmholtz-Zentrum Hereon, holds exclusive rights to commercialise Hereon’s PolyActive membrane and carbon capture technology. A joint patent application has been filed for their carbon capture module design, with ongoing collaboration for further development. Torsten Brinkmann from Hereon emphasised the advantages of membrane technology, noting its chemical-free operation and long membrane lifespan. He highlighted the superiority of flat sheet membranes over hollow fibre types in terms of material flexibility and fluid dynamics.
CPT’s Chief Technology Officer, Simon Gorringe, summarised the benefits of their flat sheet membrane technology as highly efficient, compact, and environmentally friendly. The technology enables economically effective CO2 utilisation, storage, or sequestration, with options to purify or liquify captured CO2 to food or sequestration grade.
The Grimsby pilot plant allowed precise control over the pressure ratio across membranes and the CO2 content of the feed gas. Equipped with two CPT modules, the plant demonstrated a CO2 capture capacity of up to 37,000 tonnes per annum. Live demonstrations in June and October 2025 provided proof of concept to industries such as lime, cement, and steel.
Vaisala’s MGP241 probes played a critical role in the demonstrations, providing continuous CO2 concentration monitoring. Simon Gorringe noted the importance of probe accuracy and reliability in verifying mass calculations and ensuring high performance levels. The MGP241’s patented CARBOCAP technology allows simultaneous inline measurement of CO2 and humidity, crucial for preventing equipment damage from condensation.
CPT has commenced assembly of a 10,000 tpa carbon capture plant at Höver, with operations expected to begin in Q2 2026. The plant will demonstrate the technology’s performance and economics over a 12-month period, targeting 95% CO2 recovery. CPT and Holcim plan to build a larger plant to capture 90% of Höver’s CO2 emissions by the next decade.
CEO Andrew Corner highlighted Holcim’s global decarbonisation potential, emphasising the scalability and sustainability of CPT’s solutions. He credited Vaisala’s probes with providing the trust needed for customers to rely on CPT’s systems. Accurate CO2 measurement is essential for meeting performance expectations.
