The denitration system consists of a NOx-removal catalyst, denitration reactor, ammonia injection system, ammonia dilution system, and ammonia storage and supply tanks.

Kanadevia provides deNOx catalysts and deNOx systems to a range of fields, including for gas turbines, boilers (coal-fired, heavy oil-fired, etc.), diesel engines, waste to energy plants , ethylene cracking furnaces, petroleum reformers, and sintering furnaces. Since delivering our first unit in Japan in 1974, we have delivered more than 640 units worldwide, including in the United States and China, Korea, Taiwan, Saudi Arabia, and Qatar. (As of December 2024.) In addition, we have received orders for more than 100 marine SCR systems, which are the applied version of our deNOx system technology. (As of 2021.)

One of the alternative fuels for marine use as we move towards decarbonization is LNG. LNG, or Liquefied Natural Gas, is natural gas, mainly composed of methane, that has been liquefied by cooling. It has fewer greenhouse gas emissions than other fossil fuels, and its price competitiveness is also high compared to hydrogen and biofuel, so it is a key candidate for an alternative fuel. On the other hand, there are concerns about it generating methane slip to the atmosphere as the unburned methane is emitted alongside the exhaust gases. As methane has a global warming potential about 28 times greater than carbon dioxide, methane oxidation catalysts with high methane slip reduction rates are in demand in order to increase the greenhouse gas reduction effects of LNG.

Unburned fuel methane contained in engine exhaust gases is oxidized using a catalyst and emitted as carbon dioxide, which has a smaller global warming potential than methane, thereby helping reduce the environmental impact.

Kanadevia's methane oxidation catalyst is being used in a project to develop technology to reduce methane slip from LNG-fueled ships through catalyst and engine improvements (hereinafter, "this Project"). This Project is being carried out as part of the Green Innovation Fund's Next-generation Ship Development project , run by the New Energy and Industrial Technology Development Organization (hereinafter, "NEDO") which started in FY2021.
In land-based testing for this Project, a reduction rate of 93.8% (with engine load at 100%) was achieved, and the catalyst was the first in the world to receive a certificate from ClassNK verifying that we had achieved this reduction rate. Starting in FY2024, the verification test at sea has started using a large coal carrier vessel.

Because ammonia does not emit carbon dioxide when burned, it is expected to be an alternative to fossil fuels as we move towards decarbonization, and in Japan as well, progress is being made on the development of ammonia engines for ships. At the same time, the global warming potential of the N₂O generated when ammonia is oxidized is huge, about 265 times that of carbon dioxide, so there are concerns that if this is just released as is, it will worsen the greenhouse gas reduction effects. To improve the greenhouse gas reduction effects, it is important to use a catalyst to decompose N₂O into nitrogen and oxygen, so there is a need for N₂O decomposition catalysts that enable more efficient decomposition.

While ammonia engines emit N₂O, which has a global warming potential about 265 times that of carbon dioxide, efficiently decomposing the emitted N₂O using a catalyst contributes to reducing the environmental impact.

Kanadevia's N₂O decomposition catalyst has also been selected for the "Development of N₂O reactor installed on ammonia-fueled ships" project under NEDO's Green Innovation Fund Next-generation Ship Development project from FY2024. Verification testing using actual ships is scheduled to start in FY2026, and we are working on development with the goal of widespread use of N₂O decomposition catalysts.

The technology of heating ammonia to break it down into hydrogen and nitrogen is called ammonia cracking (decomposition), so a catalyst used in ammonia cracking technology is called an ammonia cracking catalyst. Its main uses are (1) separating and generating hydrogen from ammonia , and (2) removing ammonia . The hydrogen separated and generated from ammonia is used in fuel cells, thus solving the problem of hydrogen transport and storage. Also, it helps improve safety for facilities by eliminating ammonia safely from pipes in facilities that use ammonia such as ammonia engines.

Normal ammonia cracking catalysts supply the heat needed for decomposition externally through burners or heaters, etc. However, Kanadevia's catalysts use an internal heat supply system that ensures the required heat through the oxidation of part of the ammonia.