Selective Catalytic Reduction (SCR)

Selective Catalytic Reduction (SCR) systems are used to eliminate nitrogen oxides (NOx) from the flue gas released by combustion sources such as power plant boilers. The catalyst is the crucial element of this system. Mitsubishi Power has over 40 years of experience in providing reliable SCR catalysts for advanced flue gas treatment systems that help prevent air pollution.

Maximum Capacity

1,075+ MW
Maximum NOx Removal Efficiency

95%+
Low Environmental Impact

Slip NH₂ < 2ppm
SCR Catalyst

High Reliability

High Durability

High NOx reduction

With over 1,400 SCR plants and catalyst units deployed worldwide, Mitsubishi Power's SCR catalysts feature:

High NOx reduction meeting required emission standards for all kinds of fossil fuels
Integrated NOx reduction linked with boilers/HRSGs
Best optimization of catalysts for customers‘ requirements
Multiple pollutant control to include mercury and low sulfur trioxide
High reliability Long-term catalyst maintenance

Our SCR system has been applied to many types of boilers, HRSGs, and heaters that burn various fuels. We are one of the original developers of SCR systems and has over 40 years of experience.

Conventional Boiler

NOx Removal Efficiency: Max. 95%
Treated Gas Flow Rate : 3,140,000 Nm3/h, wet
Fuel : Coal, Oil, Gas, Residual Oil Fuel, etc.

Gas Turbine Simple Cycle (GTSC)

NOx Removal Efficiency: Max. 95%
Treated Gas Flow Rate: 1,560,000 Nm3/h, wet
Fuel : Gas, Oil

Gas Turbine Combined Cycle (GTCC)

NOx Removal Efficiency : Max. 95%
Treated Gas Flow Rate : 2,820,000 Nm3/h, wet
Fuel : Gas, Oil

The SCR catalyst serves as the heart of the SCR system, and we provide both a plate-type catalyst and a honeycomb-type catalyst based on fuel type, system configuration, clients' needs, and other considerations.