In July, Mitsubishi Kakoki Kaisha started examinations to verify recovery of CO2 from exhausted gas out of the production of hydrogen using PSA at its Kawasaki Plant.

In the midst of booming needs for low-carbon hydrogen from the viewpoint of carbon neutral, Mitsubishi Kakoki is developing technologies to recover CO2 exhausted from the production of hydrogen.

In the verification test at this time the company is going to collect CO2 of a concentration over 95% for verification using the PSA technology. The company assumes the cases of use specifying in combination with “HyGeria” of small hydrogen generator developed by itself and also the cases using in combination with other various combustion equipment. Based on the data obtained in verification test, the company aims at an early practical realization to recover CO2 with high efficiency.

The verification test is carried out by means of combining the CO2 recovery equipment with “HyGeria-A”(300Nm3/h) which is an hydrogen generator of its own development.

The company is tackling to reduce CO2 exhausted from the production of hydrogen using various methods such as proceeding with the development of hydrogen generator of CO2 separating and recovery type in which a CO2 separation film is associated.