Main use conditions:
Temperature (℃): 190~500
Activation temperature (℃): 180
Heat resistance temperature (℃): 500
Pressure (Mpa): Normal pressure~5.0
Dry gas space velocity (h-1): 500~8000
Water/gas (mol/mol): ~1.4
Sulfur content (ppm): Low change>80
Medium change>150
Physical properties:
Chemical composition%:
CoO (M/M): 1.8±0.2
MoO3 (M/M): 8.0±1.0
Carrier + additive: balance
Physical properties:
Appearance: green or pink strip
Specification (mm): Ф3.5~4.5×5~25
Bulk density (kg/l): 0.93~1.0
Strength (N/cm): >130
Pore volume (ml/g): ≥0.25
Specific surface area (m2/g): ≥100
QDB-04 has the following outstanding features:
High conversion activity and activity stability
The special active carrier additive is selected. Due to the synergistic effect of the active carrier, the additive and the active component, the conversion activity of the catalyst is improved, especially the conversion activity and activity stability of the catalyst under high temperature and low sulfur conditions.
Strong ability to hydrogenolyze and hydrolyze organic sulfur
The addition of composite alkaline materials enhances the surface alkalinity of the catalyst and improves the conversion activity of the catalyst to organic sulfur, especially under low reaction temperature conditions. At the same time, due to the improvement of organic sulfur conversion activity, when the H2S in the raw gas is low, it can better maintain its own sulfurization form, thereby improving the deoxidation performance of the catalyst.
Good hydration resistance
The addition of special hydration resistance additives can significantly reduce the adsorption activity of L acid on Al2O3 particles, thereby reducing the ability of the Al2O3 component in the carrier to hydrate, and improve the hydration resistance of the catalyst, so that the catalyst does not hydrate or phase change when used under harsh conditions with high pressure, and has high hydration resistance and structural stability.
Excellent carbon burning regeneration performance
Advanced carrier preparation technology is adopted and inorganic pore-forming agents are added. On the premise of ensuring high crushing strength, the pore structure of the catalyst is adjusted and the macroporous powder rate is increased, which is conducive to the rapid escape of CO2 and other gases generated during the carbon burning regeneration process, protecting itself from or less damage, thereby improving the carbon burning regeneration performance of the catalyst.
