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ST-110 Zinc Oxide Desulfurization Sorbent
ST-110 sulfur removal catalyst is used for desulfurization of split gas from residual oils , synthetic gas ,
converted gas ,etc .In addition to adsorption for the inorganic sulfur compounds , The catalyst also has the capacity
of conversion and adsorption for some organic sulfur compounds . It can work in severe conditions with high sulfur
absorption capacity, high activity, high strength , good sustainability for activity and sulfur absorption capacity,
and good tolerance to high steam/gas ratio.Sulfur concentration in feed gas is reduced below 0.1ppm by processing
with ST-110.
1.Physical properties
Appearance light grey sphere
Particle size Φ3 ~ 4 mm
Bulk density 1.0 ~1.1 Kg/L
Zinc oxide content ≥90% wt%
Specific surface >72 m2/g
Pore volume >0.45 ml/g
Crush strength ≥25.0 N/particle
Attrition ≤6.0 %
S capacity at breakthrough >21.5 % (220°C428F)(Wt)
2.Normal operating conditions
Pressure ambient pressure ~4.0 Mpa
Temperature 180~400°C
Space velocity 1000~2000h-1
S concentration in inlet feed 1~20mg/m3 (<200°C392F)
20~100mg/m3 (<250°C482F)
Rise to diameter ratio of catalyst bed >3
S concentration in outlet feed ≤0.1ppm
Saturated S capacity , Wt % >30 (400°C752F)
Poisons
Oxygen: oxygen content in feed gas(oil) should not exceed 0.5%. Excessive oxygen may lower breakthrough sulfur capacity of the sorbent.
Chlorine: Chlorine presence in any state will affect desulfurization result.
3.Packing and transportation
180Kg/Steel drum with plastic-liner
The sorbent product is packed in air-tight plastic or iron barrels with plastic lining to prevent moisture and chemical
attack.
Tumbling, collision and violent vibration should be avoided during transportation to prevent breakage of the sorbent.