Wet desulfurization system

Wet desulfurization system

The complex iron wet desulfurization technology is a wet desulfurization process that uses a complex formed by iron ions (usually Fe³⁺) and organic ligands as a catalyst. It is mainly used to remove hydrogen sulfide (H₂S) from gas. Its core principle is to convert H₂S into elemental sulfur through redox reaction, and at the same time, realize the recycling of the catalyst.

1. Technical features

High efficiency and environmental protection: The H₂S removal rate can reach more than 99%, and the product is non-toxic sulfur, which can be used as a resource.

Mild operation: It operates at room temperature and pressure with low energy consumption.

Recycling: The catalyst complex iron can be regenerated repeatedly to reduce the consumption of chemical agents.

Wide applicability: It is suitable for the removal of medium and low concentrations of H₂S in natural gas, biogas, refinery gas, etc.

2. Application areas

Energy industry: natural gas purification, biogas desulfurization.

Petrochemical industry: refinery acid gas treatment.

Environmental protection: landfill gas, waste gas treatment of sewage treatment plants

3. Advantages and disadvantages

Advantages: no secondary pollution, easy sulfur recovery, simple process flow.

Challenges: complexing agents are easily degraded and need to be replenished regularly; by-products (such as thiosulfate) may be generated when treating high-concentration H₂S