Catalytic Desulfurization System
A system that removes hydrogen sulfide in gas through a chemical catalytic reaction without removing moisture even at high relative humidity through a desulfurization catalyst (CATALITE), a catalyst containing iron oxide.
Introduce
Catalytic Desulfurization System
Iron oxide(Fe2O3)catalyst
Desulfurization Catalyst Reaction Mechanism
Iron oxide(Fe2O3)
3CO2 + 3H2S + H2O + 3O2 → 2CO2 + H2SO4 + 2S + H2CO3(CO32- + 2H+) + 2H2O
Schematic diagram of biogas production facility
Biomass
Anaerobic digestion
Gas storage
Air injection
Desulfurization catalyst process to remove hydrogen sulfide
Heat exchange dehumidifier
Gas Engine Power Boiler
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Hydrogen Sulfide(H2S) Desulfurization Catalyst Test I
| Item | Unit | CATALITE® | Remarks | |
|---|---|---|---|---|
| Dilution drainage | 3,000 | wt% | 30 or more | Catalytic reaction experiment result criteria |
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Experimental Conditions
H2S = 1,600 ~ 1,800 ppm
Flow rate : 50ml/min
O2 = 1 ~ 2% , O2
Space Velocity = 50 hr-1
Humidity : RH 100%
Contact time = 72 sec
Bed volume : 100ml (Capa. : 36g(60ml))
Hydrogen Sulfide(H2S) Desulfurization Catalyst Test II
Hydrogen sulfide removal efficiency by desulfurization catalyst
Desulfurization catalyst removal efficiency by oxygen inflow concentration
Detection of H2S less than 1ppm as a result of checking the detector tube
Biogas pretreatment site test results
Byeolnae Food Waste Clean Center
Sewage treatment capacity : 275,000m3/day
Biogas generation: 8,000m3/day
· Hydrogen sulfide(H2S) : 5,000 ppm or more
Siloxane : around 50 ㎎/m3
Hydrogen Sulfide(H2S) Desulfurization Catalyst Test III
Biogas Application: Production of biogas using boilers and incineration
Concentration of processed gas : 10 ppm or less of hydrogen sulfide
Sampling location : 1 front and 1 rear of test bed respectively
Conditions for field testing : 15L/min, Average hydrogen sulfide concentration (approximately 5,000 ppm), operating time (720 hr)
Air injection : 500 ml/min, inflow composition(CH4 60%/CO2 30%/H2S 0.5%/H2O 5%/O2 1%)
Goal : Hydrogen sulfide removal rate of 99% or higher (at 99.5% or higher)