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Founded in July 2024,As China Noble Metal DPF Catalyst Manufacturers and Wholesale DPF Metal Filter Factory, 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.
A noble metal DPF catalyst is a composite aftertreatment component that integrates high-efficiency oxidation functionality with particulate trapping capability. It is primarily applied in diesel power systems designed to meet China VI, Euro VI, and higher emission standards. The core design concept involves uniformly coating the porous DPF substrate surface with a catalytically active layer containing noble metals—mainly platinum (Pt) and palladium (Pd), sometimes supplemented with small amounts of rhodium (Rh)—to achieve low-temperature soot oxidation and nitrogen oxide conversion.
The substrate of this type of catalyst is typically made of cordierite or silicon carbide (SiC). By precisely controlling porosity and wall thickness, the design ensures excellent gas permeability and catalytic reactivity while maintaining mechanical strength. The mechanism of noble metals operates in two principal ways: first, by promoting the oxidation of NO in the exhaust to NO₂, enabling continuous soot oxidation at lower temperatures; and second, by directly facilitating the reaction between oxygen and soot, thereby accelerating the combustion rate of particulate matter.
Compared with non-noble metal catalytic systems, noble metal DPF catalysts are characterized by high catalytic activity, a wide operational temperature window, and fast regeneration response. These features make them particularly suitable for urban driving conditions with frequent exhaust temperature fluctuations and for heavy-duty transportation vehicles.
To enhance durability, this type of catalyst generally employs high-surface-area γ-Al₂O₃ as the washcoat material, combined with rare-earth oxide stabilizers to resist high-temperature sintering and sulfur/phosphorus poisoning. Typical applications include premium passenger vehicles, construction machinery, and heavy-duty diesel trucks. During long-term operation, noble metal DPF catalysts can significantly reduce particulate emissions, shorten regeneration cycles, and effectively improve the overall fuel economy and reliability of the system.
