Iron-Manganese Dual-Function Fine Desulfurizer SCST-301 High Strength Desulfurizer
I. Applications
SCST-301 new iron-manganese dual-function fine desulfurizer is widely used for fine removal of organic sulfur and inorganic sulfur in natural gas, coke oven gas, refinery gas, coal gasification and other units. Organic sulfides are hydrogenolyzed, hydrolyzed and thermally decomposed into H2S under the catalytic action of the desulfurizer, and then H2S reacts with the active metal oxides in the desulfurizer to form metal sulfides to achieve the purpose of removal.
The main reactions are as follows:
Hydrogenolysis
RSH + H2 = H2S + RH
RSR + H2 = H2S + RH + RH
RSSR + 3H2 = 2H2S + RH + RH
H2S Removal
H2S + MO = MS + H2O (M represents metal)
Hydrolysis
RSH + H2O = H2S + ROH
RSR + H2O = H2S + 2ROH
Thermal Decomposition
2CH3SH △→ 2H2S + C2H4
CH3SCH3 △→ H2S + C2H4
II. Product Technical Indicators
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Main Physicochemical Properties |
Model |
SCST-301 |
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Appearance |
Black-brown strip |
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Main Components |
Composite metal oxides, promoters |
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Sulfur Capacity |
≥15.0 wt.% |
|
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Main Operating Conditions |
Outlet Total Sulfur |
≤2 ppm |
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Operating Space Velocity |
1000~3000 h⁻¹ |
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Pressure |
≤30 MPa |
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Operating Temperature |
200~450 ℃ |
Catalysts of other sizes or shapes can also be provided according to user needs.
III. 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 feed gas such as oilfield gas, refinery gas, naphtha, etc.;
Sulfide purification units in coal-to-synthesis gas.
IV. Catalyst Characteristics
Resistant to high pressure and high space velocity, long catalyst operating life under high pressure and high space velocity operation;
New production process, large catalyst sulfur capacity, sulfur capacity exceeds 15%;
Large specific surface area, high conversion rate, high selectivity, strong conversion ability for organic sulfur such as thiophene that requires high-temperature conversion;
Has excellent activity, stability and good mechanical strength and structural stability.
V. Packaging, Storage and Transportation
The finished catalyst is packaged in plastic drums or iron drums lined with plastic bags. During transportation and storage, it must be protected from moisture, fire, inversion and strictly prohibited from chemical contamination. Rolling or impact is strictly prohibited during handling; when stored outdoors, the bottom should be padded with sleepers and covered with canvas for rain protection; it can also be packaged in ton bags according to user needs.
VI. Partial Performance of the Company's Desulfurization Catalysts
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Unit Name |
Unit Situation |
Unit Scale |
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Qinghai Yuntianhua International Fertilizer Company |
Natural gas to synthetic ammonia |
200,000 tons/year synthetic ammonia |
|
Sichuan Ally High-Tech Co., Ltd. |
Multiple sets of natural gas to hydrogen units |
50~15000 Nm³/h |
|
Tongliao Meihua Biological Sci-tech Co., Ltd. |
Coal to synthetic ammonia |
120,000 tons/year synthetic ammonia |
|
Hebei Jinyuan Chemical Co., Ltd. |
Coal to synthetic ammonia |
150,000 tons/year synthetic ammonia |
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Export: South Asia, Middle East, Europe, America |
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