SCRkatalyyttinä

SCRkatalyyttinä refers to the use of a catalyst in Selective Catalytic Reduction (SCR) technology. SCR is a process used to reduce the amount of nitrogen oxides (NOx) in exhaust gases from internal combustion engines and industrial processes. The catalyst is a crucial component that facilitates the chemical reaction.

In the SCR process, a reducing agent, typically urea-based or ammonia, is injected into the exhaust stream upstream of the catalyst. When the exhaust gases and the reducing agent come into contact with the SCR catalyst at elevated temperatures, NOx is converted into harmless nitrogen gas and water vapor. Common catalyst materials include zeolites, titanium dioxide, or vanadium pentoxide supported on a substrate.

The effectiveness of the SCR system heavily relies on the specific type of catalyst used, its surface area, pore structure, and the operating temperature. Different catalysts are optimized for various applications and fuel types. Factors such as catalyst deactivation due to poisoning by sulfur compounds or ash can impact the efficiency of NOx reduction over time, necessitating catalyst regeneration or replacement. SCR technology, with its effective catalytic component, is widely employed to meet stringent emissions regulations worldwide.