Zinc Oxide Fine Desulfurizer SCST-302 High Efficiency, Good Water Resistance, High Strength
- Application
SCST-302 zinc oxide fine desulfurizer is used to remove sulfides from various gases such as coal, natural gas, coke oven gas, oilfield gas, refinery gas, synthesis gas, shift gas, and liquid feedstocks such as liquid hydrocarbons, propylene, naphtha, etc., to protect steam reforming, low-temperature shift, methanation, methanol, synthesis ammonia, polypropylene and carbonyl synthesis and other catalysts containing nickel, copper, iron and precious metals, and to improve product quality. The main reactions are as follows:
ZnO+H2S==ZnS+H2O -76.62 kJ/mol
ZnO+COS==ZnS+CO2 -126.04kJ/mo1
ZnO+C2H5SH==ZnS+C2H4+H2O -137.83kJ/mol
2Zn0+CS2==2ZnS+CO2 -283.45kJ/mol
- Product Technical Specifications
|
Main Physicochemical Properties |
Model |
SCST-302 |
|
Appearance |
Off-white or light yellow strip active |
|
|
Specification |
Φ3~5×(5~15) mm |
|
|
Main Components |
ZnO-promoter |
|
|
Sulfur Capacity |
220℃≥20.0 wt.% 350℃≥30.0 wt.% |
|
|
Main Operating Conditions |
Outlet Inorganic Sulfur |
≤ 0.1 ppm |
|
Operating Space Velocity |
500~3000 h-1 (gas); 0.5~3h-1 (liquid) |
|
|
Pressure |
Atmospheric pressure ~30.0 MPa |
|
|
Operating Temperature |
200~400℃ |
Catalysts of other sizes or shapes can also be provided according to user requirements
- Application Fields
Sulfide purification units in natural gas;
Sulfide purification units in coke oven gas;
Sulfide purification units in catalytic dry gas and coking dry gas;
Sulfide purification units in oilfield gas, refinery gas, naphtha, etc. as feedstock gas;
Sulfide purification units in coal-to-synthesis gas.
- Catalyst Characteristics
Good water resistance. In processes where steam participates in the reaction, the catalyst has the characteristics of high strength, not easy to pulverize, and low operating resistance;
Resistant to high pressure and high space velocity, high catalyst operating life under high pressure and high space velocity operation;
New production process, large catalyst sulfur capacity, sulfur capacity exceeds 30% at a certain temperature;
Large specific surface area, high conversion rate, catalyst outlet H2S generally less than 0.01ppm.
- Packaging, Storage and Transportation
The finished catalyst is packed in plastic drums or iron drums lined with plastic bags. During transportation and storage, it must be protected from moisture, fire, inverted placement and strictly prohibited from chemical contamination. Rolling or impact is strictly prohibited during handling; when stored outdoors, place sleepers at the bottom and cover with canvas for rain protection; it can also be packed in ton bags according to user requirements.
- Partial Application Performance
|
Unit Name |
Unit Condition |
Unit Scale |
|
Qinghai Yuntianhua International Fertilizer Company |
Natural gas to synthesis ammonia |
200,000 tons/year synthesis ammonia |
|
Ally Hi-Tech Co., Ltd. |
Multiple natural gas and coal to hydrogen units |
50~60,000 Nm3/h |
|
Tongliao Meihua Biological Sci-tech Co., Ltd. |
Coal to synthesis ammonia |
120,000 tons/year synthesis ammonia |
|
Hebei Jinyuan Chemical Co., Ltd. |
Coal to synthesis ammonia |
150,000 tons/year synthesis ammonia |
|
Export: South Asia, Middle East, Europe, Americas |
||
