MHIEC Completes Improvement of Core Equipment at Municipal Solid Waste Incineration Facility in Kagoshima City
6-Year Project at Hokubu Waste-to-Energy Plant Has Extended Service Life and Reduced CO2 Emissions
– Renewal of core centers, consisting of devices for combustion, combustion gas cooling, and exhaust gas treatment will add to long-lasting steady combustion and operation
– The enhancements will decrease CO2 emissions by around 33.1% annually, adding to the mitigation of international warming
Hokubu Waste-to-Energy Plant
TOKYO, Apr 22, 2026- (JCN Newswire )- Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd.(MHIEC), a part of Mitsubishi Heavy Industries (MHI )Group, has actually just recently finished the enhancement of core devices for Hokubu Waste-to-Energy Plant, a local strong waste incineration center in Kagoshima City. The work included restoration of the stoker type incinerators, efficient in processing 530 tonnes daily (tpd) (1 ), to extend the plant’s life span and minimize CO2 emissions. This was a task covering a six-year duration from financial 2020 to financial 2025.
The Hokubu Waste-to-Energy Plant was initially developed and built by MHI, and finished in March 2007. It consists of 2 systems of stoker type incinerators, each with processing capability of 265 tpd, plus associated devices, providing power generation capability of 8,700 kW.
Under the repair work, upgrades have actually been made to scrubby significant devices, to attain steady combustion and operation over the long term. Furthermore, a low-temperature driver, an exclusive innovation of MHIEC, was presented to the SCR (Selective Catalytic NOx Reduction) system to enhance the heat healing rate (2 ), a low excess air ratio incineration innovation (3) was embraced to enhance combustion and the performance of the boiler, and the output of the steam turbines was increased from 8,700 kW to 10,005 kW, which will decrease CO2 emissions by around 33.1% each year.
MHIEC took control of MHI’s waste treatment plant organization in 2008, getting the technological advancement abilities in ecological systems and broad-ranging proficiency in the building and operation of waste management centers both in Japan and abroad that MHI sharpened over several years. A strength of this business is its capability to propose overall options from building to operation based upon its comprehensive performance history. Moving forward, MHIEC will continue to proactively make propositions to extend the life of existing waste treatment centers, take steps versus international warming, and minimize lifecycle expenses (LCC) such as upkeep and management expenses to add to the decarbonization of energy through the collection of energy from waste.
(1) A stoker-type incinerator injects air from underneath heat-resistant fire grates, blending the waste and other product by pressing it up, and enabling effective incineration. It is the most typical system utilized for community strong waste.
(2) An SCR system eliminates laughing gas (NOx), an air toxin in exhaust gases, and normally runs at a heat. With MHIEC’s innovation, a driver that can get rid of NOx at low temperature levels was presented to the SCR system, getting rid of the requirement to heat up the exhaust gas to a heat and increasing the heat healing rate.
(3) The volume of air needed for combustion is appropriately dispersed to lower the volumes of combusted air and exhaust gas, increasing the effectiveness of the boiler and reducing the energy usage of the caused draft fan.
About MHI Group
Mitsubishi Heavy Industries (MHI) Group is among the world’s leading commercial groups, covering energy, wise facilities, commercial equipment, aerospace and defense. MHI Group integrates advanced innovation with deep experience to provide ingenious, integrated services that assist to recognize a carbon neutral world, enhance the lifestyle and guarantee a more secure world. For more details, please go to www.mhi.com or follow our insights and stories on spectra.mhi.com
