Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. (MHIEC), a subsidiary of Mitsubishi Heavy Industries Group, has finalized the enhancement of core equipment at the Matsumori Waste-to-Energy Plant in Sendai City. The project, initiated in 2021, was completed over a five-year period, aimed at extending the operational life of the facility and reducing carbon dioxide emissions.
The Matsumori Waste-to-Energy Plant, originally constructed by Mitsubishi Heavy Industries and operational since August 2005, features three stoker-type incinerators with a total processing capacity of 600 tons per day. The facility also has a power generating capacity of 17,500 kW. The recent upgrades involved renovating equipment that had been in use for over 15 years, ensuring stable long-term combustion and operation.
Significant improvements include the integration of EGR-PLUS, a combustion control system utilizing exhaust gas recirculation technology to enhance the thermal efficiency of the boiler. Additionally, the conversion of a portion of the soot blower system from steam type to pressure-wave type has reduced steam usage for ash removal, thereby increasing steam availability for power generation and boosting generating capacity.
The refurbishments have resulted in a 12.1% annual reduction in CO2 emissions. MHIEC, which acquired the waste treatment plant business from Mitsubishi Heavy Industries in 2008, leverages its extensive experience in environmental systems to provide comprehensive solutions from plant construction to operations. The company aims to extend the lifespan of existing waste treatment facilities, contribute to global warming mitigation, and reduce lifecycle costs, supporting the decarbonization of energy through waste-to-energy initiatives.
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