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Zinc Oxide Desulfurization Adsorbent, which is applicable to desulfurization of residue cracking gases or syngas and purification of feed gases for organic synthesis processes. It is suitable for both higher (350--408℃) and lower(150--210℃) temperature use. It can convert some simpler organic sulfur while absorbing inorganic sulfur in gas stream.
Main reaction of the desulfurization process is as follows:
(1) Reaction of zinc oxide with hydrogen sulfide
H2S+ZnO=ZnS+H2O
(2) Reaction of zinc oxide with some simpler sulfur compounds in two possible ways:
a. Organic sulfur compounds, catalyzed by zinc oxide, react with hydrogen to form hydrogen sulfide:
CS2 + 4H2 = CH4 + 2H2S
C2H5SH + H2 = C2H6 + H2S
Then hydrogen sulfide is absorbed by zinc oxide
H2S+ZnO=ZnS+H2O
b. Zinc oxide reacts directly with organic sulfur compounds
COS + ZnO = ZnS + CO2
XINTAO ZnO Catalyst is an ideal desulfurization adsorbent for deep purification cases, especially those at higher temperature (350--400℃).
| Model | Zinc Oxide Desulfurizer |
| Color | Light gray |
| Diameter | 3-5mm |
| Shape | Pellet |
| Zinc oxide content | ≥90% (90-92%) |
| Bulk density | 0.85~1.2kg/l (can be customized) |
| Radial crushing force | ≥10% |
| Penetrating sulfur capacity (350℃) | ≥30% |
| Operating pressure | Atmospheric pressure~4.0 Mpa |
| Operating temperature | 120~400℃ |
| Air speed | 1000~3000 h-1 |
| Hydrogen sulfide content in raw materials | <200 ppm |
| Hydrogen sulfide content after purification | <0.1 ppm |
Loading height/tower diameter | >3 |
Transportation and storage
(1)The adsorbent product is packed in plastic super sacks or iron barrels with plastic lining to prevent moisture and chemical contamination.
(2)The adsorbent product should be prevented from contact with chemicals during transportation and storage.
(3)The product can be stored for 3-5 years without deterioration of its properties if appropriately sealed.
