| Customization: | Available |
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| CAS No.: | 20344-49-4 |
| Formula: | C |
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Product Name: activated carbon
Product remarks: it is mainly used for sulfide purification of various gases such as water gas, coke oven gas, blast furnace gas, natural gas, flue gas, intermediate feed gas for chemical production, etc.
Activated carbon has a unique high-efficiency and high-precision purification effect on H2S (hydrogen sulfide) under the condition of reasonable oxygen matching in various gas sources. When the sulfide in the gas source is ≤ 100mg / Nm3, it has a long service cycle, good effect, strong stability, almost no power consumption, no secondary environmental pollution, can be used repeatedly, and has low purification cost. It is an ideal dry desulfurization agent for low sulfur gas sources, Users are welcome to choose the corresponding equipment according to various conditions.
Basic desulfurization principles ,
1. H2S removal from gas
The H2S and a small amount of O2 in the gas are catalyzed by the surface of activated carbon, and the following reactions occur at normal temperature and pressure: 2 H2S + O2 = 2 H2O + 2 SThe water generated by the reaction is taken away by the gas stream, and the elemental sulfur formed is adsorbed by activated carbon, so as to achieve the purpose of removing H2S.
2. Organic sulfur removal from gasCOS accounts for more than 96% of organic sulfur. At room temperature, COS is hydrolyzed by activated carbon to generate H2S first, and then it can be removed by the principle of H2S removal.
The reaction is as follows:
COS + H2O = H2S + CO2 2 H2S + O2 = 2 H2O + 2 S
According to the gas phase desulfurization mechanism of activated carbon, it is proved that the quality of activated carbon is mainly determined by the porosity, the specific surface area and the strength of the surface activity.
Application process conditions required
Airspeed: 300 ~ 2000h -1 (under normal circumstances)
Temperature: 20~100 °C
Sulfide and oxygen content ratio: ≥ 1: 2
Relative humidity ≥ 70% (but without liquid water entering the activated carbon bed)
Pressure: ≤ 6Mpa
Linear speed: ≤ 0.1m / s, city gas should be 0.01 ~ 0.05m / s.
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