Swiss-Japanese cleantech company Hitachi Zosen Inova AG (HZI) has announced that it has signed a Memorandum of Understanding (MoU) with a Norwegian technology provider to implement a hot potassium carbonate (HPC) carbon dioxide (CO2) separation process for energy-from-waste plants (EfW). This adds a third solution to HZI’s portfolio of CO2 separation technologies.
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Hitachi Zosen Inova (HZI) and the Norwegian technology provider CO2 Capsol AS (CO2 Capsol) have signed a Memorandum of Understanding (MoU) to implement Capsol EoP (End of Pipe) technology in energy-from-waste (EfW) plants.
This increases HZI’s current portfolio of CO2 separation technologies, each having its own specific advantages.
Safe and cost-effective process
CO2 Capsol EoP technology uses hot potassium carbonate (HPC), which does not pose a risk to people or the environment while being cost-effective.
The EoP process connects to the end of the EfW process and is powered either by electricity generated by the plant or by a combination of electricity and steam from the EfW facility.
The standalone system can be installed and commissioned without interrupting the plant’s operation. The captured CO2 can then be either liquefied, stored, or used to produce methane in downstream processes.
Thanks to a patented heat recovery method, this technology is quite efficient with respect to operating costs. The energy requirement for separation is approximately 200 kWh per tonne, depending on the specific installation.
Capsol EoP is ideally suited to capturing CO2 from post-combustion. In HZI, we have found a partner with whom we can establish this solution in EfW facilities, said Jan Kielland, CEO of CO2 Capsol.
Expands HZI’s decarbonization concept
This agreement is another key milestone in the HZI’s ambitious decarbonization plan, and it comes in addition to its existing amine scrubbing separation (Aker-type) and mineralization technologies for carbon capture (CarbonFree), storage, and utilization (CCS/U).
Each process has specific advantages and disadvantages depending on a plant’s location, connections, and operating methods. HZI aims to be in a position to offer the best possible solution for every specific requirement in order to support decarbonization and implement circular economy landscapes globally.
This technology allows us to offer our customers a third process for separating CO2. It is robust, efficient, and particularly suited to EfW plants that feature district heat extraction since the process makes it possible to extract more total heat, commented Fabio Dinale, VP Business Development at HZI.
