| Comparison |
Dry Desulfurization |
Wet Desulfurization |
Micro Chelated Iron Wet Desulfurization |
Biological Desulphurization |
| Application |
Small and medium projects with gas less than 5000m³/day; Second high precision desulfurization after other methods |
Large Gas Plant up to 100,000 m^3/ day; High sulfur content around 5g/Nm³ |
Large-scale |
Large-scale, high sulfur-containing gas (100ppm~20000ppm) |
| Power Consumption |
None |
High |
Moderate |
Moderate |
| Operating Cost |
Moderate, the desulfurizer need to be changed periodically |
Moderate |
Low |
Low cost on electricity bill |
| Land Scale |
Small |
Full set of equipment for gas desulfurization, regeneration, filtration and melting sulfur, in result, large land is required. |
Small |
Moderate |
| Operation Management |
Easy to manage, reliable operation, dispense with staff on duty |
Need people on duty to control the operation |
Need people on duty to control the operation |
Automatic operation, simple maintenance |
| Remarks |
Refueling at fixed period, one use one reserve, alternate operation |
Many equipment |
Less equipment than wet desulfurization |
|
| Advantages |
Simple structure, low investment, long lifetime, high precision of desulfurization (lower than 15ppm) |
It can deal with large amount gas, and the system can run continuously by using PH value to keep the efficiency. |
High efficiency by Iron Chelate, small in size, and high processing capacity |
High desulfurization efficiency 99.5%, no second pollution, stable performance, suitable for large-scale, high sulfur-containing gas |
Audited Supplier 
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