Ammonia Cracker
Cracking of ammonia is one of the most economical ways for on-site generation of hydrogen gas for industrial purposes. For this process, the temperature of 850°C is maintained in the electrically heated furnace. A centrifugal cast retort is installed in the center of this furnace. This furnace is filled with a nickel catalyst. At this stage, the ammonia cracking takes place in presence of nickel catalyst. The process separates its vital element into 75% hydrogen and 25% nitrogen gas at a dew point of (-)30°C.In fact, nitrogen gas is generally inert. This mixture is treated as pure hydrogen gas. This becomes the most economical, trusted, tried and dependable source of on-site hydrogen generation for many small and large industries. A molecular sieve purifier is used after ammonia cracking unit for reducing residual ammonia content and to get very dry gas. This reduces ammonia down to 1-ppm level and dries gas up to (-) 80°C dew point.
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Technical specification:
| Flowrate | 1-500 nm3 |
| Hydrogen | 99.5% |
| Nitrogen | up to 0.5% |
| Oxygen | nil |
| Dew Point | (-)70° C |
| Pressure | 3.5 to 25 bar |
Industrial Uses
- Purified Hydrogen and Nitrogen gas mixture from these Ammonia Cracking plants are used in:
- In Heat treatment furnaces while the process of Annealing, Sintering, and Galvanizing
- Reducing furnace atmosphere
- Stainless Steel bright annealing
- Carbon Steel bright annealing
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