MHI group launches joint demonstration testing of CO2 liquefaction

Mitsubishi Heavy Industries and two of its Group companies – Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (MHIET) and Mitsubishi Heavy Industries Air-Conditioning & Refrigeration Corporation (MHI-AC&R) have commenced joint demonstration testing of a system that liquefies the CO2 captured from gas engine generator sets. It will accelerate the quest efforts to achieve carbon neutrality through offering the liquefaction system and related technologies.

In this demonstration testing programme, CO2 from gas engine generator sets, forming a part of an in-house power station at MHIET’s Sagamihara Plant, is captured by “CO2MPACT™,” a compact CO2 capture system, and the CO2 is liquefied in MHI-AC&R’s compact CO2 liquefaction system. Introducing expertise of the Research & Innovation Centre which is in charge of R&D in MHI Group, the demonstration testing will target early practical application. Because liquefied CO2 has less volume than gaseous CO2 and is more transportable, it is expected to accelerate adoption of CCUS (Carbon dioxide Capture, Utilisation and Storage).

In addition, verification of operational support services using MHI’s proprietary remote monitoring system will be implemented in the CO2 liquefaction demonstration test programme. It is the same verification as that for CO2 capture system which has already been underway in the demonstration test since 2022. The test programme will lead to not only acquiring know-how relating to handling of liquefied CO2, but also creation of a fully integrated customer support system from CO2 capture to liquefaction.

MHI Group aims to achieve carbon neutrality by 2040, and the Company is now undertaking strategic initiatives toward decarbonising the energy supply side. Establishing a CO2 solutions ecosystem that links diverse carbon emission sources with solutions for storage and utilisation is a core aspect of these initiatives. The CO2 liquefaction demonstration test programme will enable all processes, from CO2 capture to liquefaction, to be conducted applying MHI Group’s comprehensive strengths. Going forward, MHI Group will continue further development of solutions, in a broad range of industrial fields including gas engine generator sets, that will contribute to environmental protection in response to the decarbonisation needs of its customers and society, toward achieving a carbon neutral society.

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