Selective catalytic reduction (SCR) is a sophisticated way of actively reducing emissions, wherein a catalyst is utilized to inject a liquid-reductant agent into the exhaust stream of a diesel engine. Diesel exhaust fluid (DEF) is urea designed for use in automobiles and is the most frequent reducing agent used. This molecule kickstarts a chemical reaction that converts nitrous oxide to harmless byproducts like water, nitrogen, and trace amounts of carbon
The government has enacted rigorous regulations aimed at regulating the release of pollutants stemming from the combustion of diverse fuels, such as diesel fuel, fuel oil, petrol, gasoline, biodiesel, and comparable substances, in automobiles. The Euro 6 standard, as mandated by the European Union Directive, serves as the latest emission regulation. Its major aim is to address the release of harmful gases, including nitrogen oxide, carbon monoxide, and hydrocarbons, from vehicle exhaust systems.
Likewise, catalyst converters are a feature of car catalysts. The emission control device helps comply with government emissions requirements by converting harmful and offensive gases released by engines into less dangerous pollutants. As a result, the strict enforcement of laws governing pollution control acts as a stimulant for the rise in demand for automobile selective catalytic reduction technology, propelling the market's worldwide growth.
Key players in the emission reduction technology market are investing in improving and developing catalysts. For instance, Johnson Matthey Inc., a leading automotive catalyst producer, focuses on developing a three-way catalyst for future vehicles, improving fuel efficiency and reducing carbon dioxide (CO2) emissions substantially at lower operating temperatures. A three-way catalyst can reduce the emitted pollutants from vehicles at 100% conversion efficiency at its operational temperature, above 400ºC, which is considerably higher. Such innovations in automotive catalysts are anticipated to provide future growth opportunities for the market.
Asia-Pacific is the most significant global automotive selective catalytic reduction (SCR) market shareholder and is predicted to exhibit a CAGR of 14.9% during the projected period. The automotive selective catalytic reduction (SCR) market research has been examined throughout Asia-Pacific, which comprises China, Japan, India, South Korea, and the remaining regions of the region. Numerous international companies operating in Asia-Pacific, like Faurecia and Plastic Omnium SA, have developed advancements in emission control technologies that support the region's market expansion.
In addition, the growth of the regional selective catalytic reduction (SCR) vehicle industry is also supported by funding from leading emission control technology manufacturers and government regulations such as UN Environment Programs. In order to innovate and improve technologically, automakers are collaborating with producers of pollution control technology to form joint ventures, which is helping to drive the market's growth.
The global automotive selective catalytic reduction (SCR) market size was valued at USD 11.83 billion in 2024 and is projected to reach from USD 13.22 billion in 2025 to USD 32.28 billion by 2033, growing at a CAGR of 11.8% during the forecast period (2025-2033).
Key players operating in the global automotive selective catalytic reduction (SCR) market are Bosal, Faurecia, Johnson Matthey, Magneti Marelli SPA., Plastic Omnium SA, and Robert Bosch GmbH.