News|Articles|February 4, 2026

Baker Hughes Advances Hot Potassium Carbonate for Post-Combustion Capture Projects

Author(s)James Cook
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Key Takeaways

  • A combined HPC solvent process and turbomachinery train package targets post-combustion CO₂ capture, leveraging flue-gas compression/expansion and mechanical vapor recompression to improve system integration and economics.
  • Multi-sector pilot plant testing and tailored engineering workflows are being used to drive down capture costs, with active customer support spanning feasibility studies, FEED, and full project execution.
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Gianmarco Technologies’ hot potassium carbonate process uses a potassium-based solvent to capture CO2 from gas streams, with over 400 projects currently deploying the technology.

Baker Hughes and Gianmarco Technologies agreed to advance and commercialize hot potassium carbonate (HPC) solutions across several energy and industrial sectors. The HPC process will be combined with Baker Hughes’ turbomachinery technology—including trains for flue gas compression, expansion, and mechanical vapor recompression—for post-combustion carbon capture applications.

“We’re proud to collaborate with Giammarco Technologies,” said Ahmed Eldemerdash, Vice President of Climate Technology Solutions, Baker Hughes. “Together, our complementary capabilities will expand the use of HPC across hard-to-abate sectors and unlock new pathways for energy and industrial decarbonization at scale. This collaboration underscores our commitment to advancing technologies that improve the economic viability of CO2 projects and to being a partner to reduce emissions worldwide.”

The partners will leverage multi-sector pilot plant testing and provide fully integrated, customized solutions to help lower carbon-capture costs. Customers are currently receiving support with feasibility studies and front-end engineering design (FEED), and the companies will continue delivering these projects through full execution.

Gianmarco Technologies’ HPC process uses a safe, sustainable potassium-based solvent to efficiently capture CO2 from gas streams, with over 400 industrial projects deploying the technology. The process now falls under Baker Hughes’ CCUS portfolio, which includes:

  • Consultancy
  • FEED
  • Capture and purification systems
  • Compression and liquefaction technology
  • Well design and construction for injection and monitoring
  • Long-term site stewardship

“We are proud to enter into a strategic collaboration with Baker Hughes, representing a step forward in the global deployment of our HPC process and further strengthening Giammarco Technologies’ position in post-combustion carbon capture,” said Giuseppe Giammarco, CEO of Giammarco Technologies. “Our process, combined with Baker Hughes’ global execution capabilities, enable the delivery of high-performance, cost-effective, and fully integrated solutions for industrial and energy sector decarbonization.”

A-CAES Agreement

Last week, Baker Hughes and Hydrostor signed a strategic technology solutions and equity agreement at the 2026 Baker Hughes Annual Meeting in Florence, Italy. The agreement integrates Baker Hughes’ compression, expander, motor, and generator technology with Hydrostor’s advanced compressed air energy storage (A-CAES) solution, including up to 1.4 GW of equipment orders for flagship projects.

"Increasing pressure on electric grids is making long-duration energy storage an urgent priority,” said Lorenzo Simonelli, Chairman and CEO of Baker Hughes. “Hydrostor's approach offers a low-carbon solution to ensure power reliability across a diverse mix of generation resources. We are proud to support Hydrostor with critical technology to accelerate these projects, supporting greater global grid resilience and enabling sustainable power systems at scale.”

Baker Hughes has invested in Hydrostor since 2019, with the latest agreement arriving as Hydrostor nears construction on 1.4 GW of A-CAES, power generation, and compression projects in the United States and Australia.

Aeroderivative Turbines

In Q3 2025, Dynamis Power Solutions (Dynamis) ordered 25 aeroderivative gas turbines from Baker Hughes, including the LM2500, LM6000, and LM9000, totaling 1.3 GW of mobile power generation for oil and gas applications in the upstream, refining, and petrochemical industries. Per a signed agreement, Dynamis will package these gas turbines and associated generators as mobile power systems.

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