Main Features and Advantages:
Deep and Fine Desulfurization: Can reduce the concentration of hydrogen sulfide in gases to below 0.1 ppm with extremely high precision.
High Sulfur Capacity: A unit mass of desulfurizer can absorb a large amount of sulfur, resulting in a long service life.
Irreversible Reaction: Reacts with H₂S to form stable zinc sulfide (ZnS), ensuring that sulfur is firmly fixed.
Easy Operation: Typically used for single applications; replace after saturation, requiring no complex regeneration system.
Working Principle: Through an irreversible chemical reaction: ZnO + H₂S → ZnS + H₂O
Main Applications: Widely used in ammonia synthesis, methanol-to-hydrogen, petrochemicals, and other fields, serving as the final desulfurization step to protect downstream expensive catalysts from sulfur poisoning.
Limitations: Primarily targets H₂S, with limited effectiveness in removing some organic sulfur compounds, and cannot be regenerated after saturation, requiring disposal or recycling.
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