The feasibility of Selective Catalytic Reduction

Abstract

Diesel is a key oil-refined fuel, irreplaceable for daily life and major systems. It powers cross-country freight trucks, factory machines, farm tractors and irrigation pumps, and emergency generators in disasters or off-grid areas—tied to nearly all our work, from large industries to daily infrastructure. But the Volkswagen nitrogen oxide scandal made people aware of the harm caused by excessive nitrogen oxides. It not only affected the environment and health but also eroded public’s trust, contributing to the rejection of consumers to use diesel vehicles. This essay discusses the feasibility of Selective Catalytic Reduction (SCR), an advanced technology to reduce diesel-related nitrogen oxides, and compare it with other technologies such as Selective Non-Catalytic Reduction (SNCR) and Exhaust Gas Recirculation (EGR) to underscore the advantages and viability of SCR. It also explains SCR’s working principle and uses specific examples to illustrate that it is an effective and efficient solution for nitrogen oxide emissions, so that the considerable amount of nitrogen oxide can be solved, and the public can accept diesel vehicles.