Study on dry desulfurization performance of MnOx hydrothermally loaded
Coke quenching process has the characteristics of complex pollutant
composition and serious environmental pollution. So, the SO2 must be
desulfurized. In this paper, halloysite with natural nanotube structure
is selected as carrier, transition metal manganese is supported. The
activated halloysite is formed by chitosan gel microspheres, and the
experimental on sulfur dioxide treatment is carried. The results show
that co-processing of halloysite@chitosan desulfurizer significantly
improves the efficiency of dry desulfurization and reduces by-products.
The desulfurizer is loaded with manganese by hydrothermal metal, and its
oxides are mainly MnO2, Mn2O3, MnO. When hydrothermal temperature is 180
℃, metal loading ratio is 5%, reaction is 24 h, the desulfurization
rate is 79.47%. Compared with unloaded, it is as high as 3.05 times.
The halloysite modified by molten salt etching undergoes hydrothermal
metal loading, showing excellent ability. The desulfurization rate was
as high as 95.49%, and 87.98 mg of SO2 was removed cumulatively.