Ammonia Synthetic Catalyst
1. Ammonia synthetic catalyst is mainly used in chemical fertilizer industry in ammonia synthesis;
2. It has high catalytic feature at a low temperature and holds excellent heat resistance，poison resistance and the characteristics of easy to restore;
3. This product can also be applied in metallurgy, vacuum tube industry. Ammonia is decomposed into pure nitrogen and hydrogen.
Product Introduction
Ammonia synthetic catalyst is black, with magnetic irregular solid particles with metallic luster. Particle size can be divided into: 1.5-3.0 mm, 2.2-3.3 mm, 3.3-4.7 mm, 6.7-9.4 mm, 9.4-13.0 mm. Other size can according to user requirements for processing.
Ammonia synthetic catalyst is easy to be affected with damp when it is exposed to the air. It can cause potassium precipitation decreases after reduction activity. Restored catalyst will quickly lose active spontaneous combustion when it is exposed to the air.
Compounds of sulfur, phosphorus and arsenic, copper liquid, the oil and the oxygen containing compounds all can cause temporary poisoning and permanent poisoning of the catalyst.
Ammonia synthetic catalyst is easy to restore. Ii starts out of the water when it is 300~330 ℃, water a lot of water when it is 380~420 ℃.The main phase of watering is 420~480 ℃. The highest reduction temperature is 500 ℃.
Technical Specifications:
| Fe3O4, wt % | 89-96 |
| Appearance | Black Granule |
| Bulk Density, kg/L | 2.9-3.2 |
| Size, mm | 1.5-3.0 mm and others |
Detection of activity:
In laboratory conditions, with the pressure of 15.0 MPa, Airspeed 3×104h-1, temperature 425 ℃, the percentage of export ammonia reactor volume is not less than 13.5%. When the temperature rise to 500 ℃ and after 20 hours of heat, the percentage of reactor outlet ammonia volume is still no less than 13.5% under the same conditions.
Main components of ammonia synthesis catalyst include: Fe3O4, Al2O3, K2O, CaO.
Ammonia synthetic catalyst can be divided into oxidation state and reducing state. In the oxidation state, the catalytic activity is very low, but in the reduction to a-Fe, the catalytic activity is higher.
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