Hg0 removal performance and mechanisms of FeOCl regulated by CuCl2

Pure FeOCl has a low Hg0 adsorption capacity and the complex flue gas environment further hinders its practical application to mercury removal. This paper proposes that CuCl2 is used to regulate the Hg0 chemisorption ca-pacity of FeOCl. The experimental results found that when the CuCl2 to FeCl3 mass ratio was 2:1, the efficiency of Hg0 removal reached 100% at 140-160 degrees C. In addition, the sulfur resistance and O2 adsorption capacity of FeOCl are enhanced by doping with CuCl2. The adaptability of FeOCl-based sorbents to complex flue gas environments was significantly improved. The regulation mechanisms of CuCl2 were clarified by density functional theory. This work addresses the low sulfur resistance and low chemisorption capacity of FeOCl-based sorbents and provides an effective solution for mercury removal in complex flue gas environments.

Automated summary

This study proposes the use of CuCl2 to regulate the Hg0 chemisorption capacity of FeOCl, improving its efficiency and adaptability for mercury removal in complex flue gas environments.