Uses metal oxides such as zinc oxide and iron oxide as active components, which react with hydrogen sulfide to form metal sulfides to achieve H2S treatments.
The regeneration system off-gas contains only air, with no H₂S or other pollutant emissions.
No complex equipment or precise control required, with low investment, operation and maintenance costs. Suitable for small and medium-capacity working conditions.
Excellent removal performance for low-concentration H₂S.
Stable reaction products and no harmful by-products. The catalyst can be regenerated or disposed of properly.
Operates at ambient temperature and atmospheric pressure, resistant to load fluctuations, and suitable for various H₂S-containing gas treatment scenarios.
Operates normally without additional oxygen supply, even under low humidity conditions.
Low and stable pressure drop over the full service life, ensuring controllable system energy consumption.
Enables deep H₂S removal, with outlet concentration as low as below 5 ppm.
Easily handles fluctuating conditions of sulfur content and gas/liquid flow rates.
Maintains stable sulfur treatment performance even in high CO₂ environments.
Safe, simple media/catalyst replacement, significantly reducing downtime.
Natural gas, biogas, coalbed methane, refinery and chemical tail gas, and other sour gases.
High efficiency for low-concentration H₂S; outlet H₂S can meet ultra-low emission standards.
Simple process, low investment and operation cost, environmentally friendly, stable performance.
Service life depends on H₂S content and gas flow. It generally ranges from 1 to 2 years under normal operating conditions.
It mainly removes H₂S. Removal of organic sulfur is limited. For COS or mercaptans, additional treatment is recommended.
Spent catalyst is non-hazardous waste under normal conditions and can be disposed of safely according to local environmental regulations.
The system is compact, skid-mounted and easy to install. Investment and installation costs are much lower .
This technology is mainly used for the purification of sour gases including natural gas, petroleum associated gas, coalbed methane, shale gas, blast furnace gas, coal chemical gas, biogas, and petroleum refining tail gas.
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