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Selective Catalytic Reduction (SCR) Catalyst

The core of the Selective Catalytic Reduction (SCR) system is the SCR catalyst. Its working principle is that, under catalytic action, a reducing agent—typically a urea–water solution that decomposes into ammonia after being injected into the exhaust stream—selectively reacts with nitrogen oxides (NOx) in the exhaust rather than with the large amount of oxygen present. Through this selective reaction, NOx is reduced to harmless nitrogen (N₂) and water (H₂O).The SCR catalyst, especially those based on copper-exchanged zeolites, is a foundational technology for achieving ultra-low NOx emissions in modern engines. Using ammonia as the reductant, it enables highly efficient and selective conversion of NOx into nitrogen. The titanium dioxide–tungsten/molybdenum coating system combined with copper/vanadium active centers creates a precise “chemical factory” capable of targeting NOx in an oxygen-rich environment. This makes the SCR catalyst an indispensable component for diesel engines to meet the most stringent emission regulations worldwide.

Focus on three-way catalytic carrier coating

Founded in July 2024, Longyou Shuochun New Material Technology Co., Ltd. is a high-tech enterprise specializing in the coating and sales of three-way catalytic converters. It is deeply engaged in the field of new materials.

The company always keeps an eye on the industry frontier, actively learns from and draws on the advanced formulas and mature technologies of domestic and foreign counterparts. Through in-depth research and localization of mainstream formulas, it accurately adjusts the proportion of raw materials such as rare earths, precious metals and non-precious metals, so as to ensure that the coated carriers produced have stable catalytic activity and reliable performance.

The company's products cover a variety of specifications and models, and its products and technologies are applicable to automobiles, motorcycles, general-purpose engines, construction machinery, marine power, generator sets, agricultural machinery and other fields.
 
In the future, the company will continue to learn advanced industry experience, optimize production and services, and contribute to the realization of carbon peaking and carbon neutrality goals in China and around the world.

Longyou Shuochun New Material Technology Co., Ltd.
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