Press Information

MHIENG and MHIET to Conduct Carbon Capture Demonstration Testing for Gas Engine Generator Sets
-- Achievement of MHI’s “MISSION NET ZERO” Will Help Realize a Carbon-Neutral Society --

Mitsubishi Heavy Industries Engineering, Ltd.
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.

・ Demonstration testing will accelerate various customers’ decarbonization initiatives
・ Fully integrated customer support structure to be developed encompassing all aspects from CO2 capture system introduction plans to after-sale services, maintenance and operation

Gas engine generator sets in MHIET’s Sagamihara Plant

Gas engine generator sets in MHIET’s Sagamihara Plant

Tokyo, June 2, 2022 - Mitsubishi Heavy Industries Engineering, Ltd. (MHIENG) and Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (MHIET), two group companies of Mitsubishi Heavy Industries, Ltd. (MHI), will jointly launch demonstration testing of MHIENG’s CO2 capture technology in gas engine generator sets operated by MHIET. The testing constitutes an integral part of MHI Group’s goal for realizing carbon neutrality under its “MISSION NET ZERO” program, and will play an important role toward achieving decarbonization any industries.

Commencing in July 2022, and lasting for a total of 10 months, the demonstration marks MHIENG’s first initiative capturing CO2 from gas engine flue gas.

The demonstration testing is a core element in MHI Group’s strategic development of Energy Transition solutions harnessing its groupwide expertise. It will be carried out using a compact CO2 capture system(Note) manufactured by MHIENG and installed in gas engine generator sets forming a part of an in-house power station at MHIET’s Sagamihara Plant in Japan. The demonstration testing will be applied to study the impact of gas engine flue gas properties on capture performance, and to evaluate the component makeup of the captured CO2. Verification will also be performed on an operation support service utilizing MHIENG’s proprietary remote monitoring system. A fully integrated customer support structure will be put in place encompassing all aspects from CO2 capture system introduction plans for gas engines and other facilities, to after-sale services, maintenance and operation. In addition, a mass-production type compact CO2 capture system will be adopted and the system’s ease of installation and appropriateness for use in relative small-scale facilities will be evaluated, to enable enhancement of the system’s overall reliability.

MHIET intends to invite customers to tour the Sagamihara Plant while testing is underway. Plans also call for the captured CO2 to undergo liquefaction testing to facilitate its handling, conducted jointly with the Research & Innovation Center in charge of R&D at MHI Group. In this way, the MHI Group will strive as a whole toward early realization of utilization of captured CO2.

MHI Group announced MISSION NET ZERO, its program targeting carbon neutrality by 2040, in October 2021, and the Company is now implementing measures of all kinds to help realize a carbon-neutral society. Measures include not only energy saving and the introduction of decarbonized power sources, but also pursuit of carbon-neutral production plants through effective use of the Company’s proprietary, of which MHIENG’s CO2 capture technology is one example. In these ways, MHI is making steady progress in reducing its carbon emissions and carrying out MISSION NET ZERO.

MHI Group is currently strengthening its position in the Energy Transition, and the development of a CO2 solutions ecosystem is a core component of that initiative. Carbon dioxide capture, utilization and storage (CCUS) is garnering attention as an effective means for realizing a carbon neutral society. Supporting the group’s strategy on the Energy Transition, MHIENG, as a leading company in the decarbonization area, will continue to help achieve wide-scale greenhouse gas emission reduction by introducing its high-performance CO2 capture technology globally. It will also press ahead in developing new proprietary technologies to contribute to global environment protection. MHIET, as a manufacturer of gas engine generator sets, which today are attracting strong expectations of contributing to achieving low and zero-carbon society, will seek to offer environmentally friendly gas engines with CCUS to various customers as a choice toward carbon free society.

MHIENG’s compact CO2 capture system

MHIENG’s compact CO2 capture system

About MHIENG’s CO2 capture technologies
MHIENG (originally MHI) has been developing the KM CDR Process™ and the Advanced KM CDR Process™ in collaboration with Kansai Electric Power Co., Inc., since 1990. Today MHIENG stands as a global leader in this field. As of May 2022, the KM CDR Process™ has been adopted at 13 plants worldwide, and three more are currently under construction. For further details, visit the following website and view the attached video presentation.

For further information on MHIENG’s decarbonization products, visit:


Tags: carbon neutral,energy transition,CCUS,engine

About MHI Group

Mitsubishi Heavy Industries (MHI) Group is one of the world’s leading industrial groups, spanning energy, smart infrastructure, industrial machinery, aerospace and defense. MHI Group combines cutting-edge technology with deep experience to deliver innovative, integrated solutions that help to realize a carbon neutral world, improve the quality of life and ensure a safer world. For more information, please visit or follow our insights and stories on