SDAF Environmental Technology Group focuses on the research and development and application of honeycomb ceramic technology. Based on this, it provides customers with honeycomb ceramic series products and industrial waste gas treatment equipment based on honeycomb ceramic core components in the field of air pollution control. The straight-through carrier produced by the company is mainly used in exhaust gas treatment to provide attachment positions for selective catalytic reduction reaction catalysts; DPF and GPF products are mainly used to filter the soot particles generated in the exhaust gas treatment of internal combustion engines; VOCs exhaust gas treatment equipment is mainly used in petrochemical and printing Treatment of volatile organic compounds in industries such as, medicine and electronics.
Honeycomb ceramic is a ceramic product with a new structure. It is named because its internal structure is similar to the shape of a honeycomb. Its main materials include cordierite, aluminum titanate, silicon carbide, zirconia, silicon nitride, etc. Honeycomb ceramics usually have physical properties such as large specific surface area and low thermal inertia. Honeycomb ceramics used in internal combustion engine exhaust gas aftertreatment systems to coat catalysts or capture particulates are called honeycomb ceramic carriers. According to the exhaust gas treatment principle, honeycomb ceramic carriers are mainly divided into straight-through carriers and wall-flow carriers. The straight-through carriers are mainly used in chemical catalytic processes such as SCR, DOC, ASC, TWC, and wall-flow carriers include DPF and GPF, which are mainly used For physical adsorption.
After coating the catalyst, the honeycomb ceramic carrier is packaged and integrated in the exhaust gas aftertreatment system of the internal combustion engine, and is assembled on the vehicle with the internal combustion engine.
The specific division of labor of the industrial chain of internal combustion engine exhaust gas aftertreatment system is: the catalyst coating manufacturer is the direct user of the honeycomb ceramic carrier; the coating manufacturer performs the coating treatment of the active components and the catalytic promoter; the packaging company wraps and completes the catalyst carrier Integration of internal combustion engine exhaust gas after-treatment system; the final exhaust gas after-treatment system is applied to end customer internal combustion engine main engine manufacturers, vehicle manufacturers or marine engine manufacturers, etc. The honeycomb ceramics produced by the company are at the forefront of the exhaust gas treatment industry chain.
Since US Corning initiated the honeycomb ceramic carrier industry in the 1970s, an oligopoly has gradually formed in the industry with Corning and NGK in Japan as oligopoly. The core technologies and products for controlling exhaust gas pollution have long been in the hands of foreign monopoly giants. With the technological breakthroughs and market share increase of Chinese honeycomb ceramic carrier manufacturers represented by SDAF, Yixing YXFJ Ceramic Technology Group, and YXWZ Honeycomb Ceramic Technology Group, Chinese host and vehicle manufacturers have gradually started the process of localization of honeycomb ceramic carriers.
SDAF develops and commercializes a full series of honeycomb ceramic carriers that meet international emission standards, directly supplying Umicore, Johnson Matthey, BASF, Sinotruk Rubber & Plastics, Weifu Environmental Protection, Guiyan Catalysis, China Self Environmental Protection, etc. Major catalyst manufacturers, and successfully entered the supplier list of well-known domestic and foreign vehicle or main engine manufacturers, including Sinotruk, Weichai Power, Yuchai Power, Yunnei Power, Cummins, Daimler, etc.
The company's main products are straight-through carriers (SCR, DOC, ASC, TWC, etc.) and DPF carriers, which are oriented to the light and heavy diesel vehicle market. From 2016 to 2018, the company's competitive position in China's SCR carrier continued to increase, and its market share increased from 3.5% to 9.5%. At the same time, DPF carrier products entered the U.S. commercial truck aftermarket in 2018, becoming a Tier 1 supplier to companies such as AP and Skyline.
As China's National Sixth Standard has substantially increased its emission requirements, it is currently one of the most stringent emission regulations in the world. Diesel vehicles will all adopt the DOC+DPF+SCR+ASC technical route, that is, add diesel oxidation catalyst carrier (DOC) and diesel particulate filter (DPF) on the basis of the National Five Standards. Gasoline vehicles need to install GPF on the basis of TWC. At present, the company has stocked a full range of multi-specification honeycomb ceramic carriers for diesel vehicles, gasoline vehicles, ship engines, and non-road mobile machinery that are applicable to National Sixth Standards. Bench testing and road testing between SDAF and relevant mainstream catalyst manufacturers, engines, and vehicle manufacturers at home and abroad are ongoing. At present, there are 140 test items for national sixth-class emission standards. The company's DPF products comply with China VI and US EPA2010 and Euro VI emission standards, providing a localized basis for the national VI standards to be implemented in China. The company has a certain advantage in the national six-stage competition and will face direct competition with Corning and NGK.
Development milestones
.SDAF was established in 2002;
.The industrial honeycomb produced by the company was exported to Japan in 2003;
.In 2013, the company's products passed TS16949 (Automotive Industry Quality System Standard) and entered the China National Heavy Duty .Truck Product List (SOP: small batch production) in the same year;
.In 2015, the product entered the Cummins product list;
.In 2017, the products entered the Daimler product catalog;
.Adopted IATF16949 in August 2018;
.Listed on the Shanghai Stock Exchange in 2019.