Selective catalytic oxidation (SCO) technology and selective catalytic reduction (SCR) are the opposite aspects of the chemical reaction. Through the modification of existing catalyst technology, this technology makes it appear the opposite performance - strong oxidizing property, and oxidizes the material that contains HC element to CO and H2O. This technology is widely used in the catalytic decomposition of dioxin-like substances CDDs, volatile organic compounds VOCs, carbon and oxygen compounds HC and the oxidation decomposition of ammonia gas NH3.

Especially the catalyst that is used to control dioxin gas, by adding metal materials to the SCR catalysts, making has both reducibility and oxidability, which enables it to be a double catalyst that can realize denitration and dioxin at the same time.