I. Basic Principle of Wet Flue Gas Desulfurization Process with Complexed Iron
Desulfurization Principle
Overall reaction equation for oxidation absorption
H2S(g)+2Fe3+(L)→2H+(L)+S↓+2Fe2+(L)
2. Recycled Principles
To restore the solution's ability to absorb hydrogen sulfide, the solution is regenerated, with the regeneration process primarily involving oxidation and sulfur precipitation reactions:
1/2O2(g)+H2O(L)+2Fe2+(L)→2OH-(L)+2Fe3+(L)
II. Technical Features
High desulfurization efficiency.
(2) The system boasts strong anti-jamming capabilities.
(3) Low operation costs.
(4) The process has high selectivity and no by-products.
(5) High sulfur capacity.
(9) No waste water discharge, no hazardous waste generation.
Section 3: Application Scope: Hydrogen sulfide removal from biogas, associated petroleum gas, and industrial vent gas, with gas volume less than 100,000 Nm3/d. The hydrogen sulfide content in the feed gas is not limited, and the desulfurization accuracy is less than 10 PPm.