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Overview of Ammonia Cracking Hydrogen Production Technology
Ammonia cracking produces hydrogen through a catalytic decomposition process, in which liquid ammonia is decomposed at high temperature into a hydrogen-nitrogen mixture (H₂+ N₂). With an integrated purification system, the process can flexibly deliver either the mixed gas or high-purity hydrogen. The technology adopts a modular design, integrating key components such as evaporators, electric heating cracking furnaces, high-efficiency heat exchangers, and purification systems.
Reaction Principle
Under the action of a nickel-based catalyst, liquid ammonia undergoes thermal decomposition at 500–850 °C, producing a mixed gas with a standard composition of 75% H₂and 25% N₂.
Reaction
equation:
2NH₃→3H₂+ N₂(ΔH = +92 kJ/mol)
The resulting hydrogen-nitrogen mixture is an ideal protective atmosphere with the following features:
· Oxygen-free characteristics (O₂< 1 ppm)
· Reducing atmosphere
· Stable composition
It is widely used in semiconductor device manufacturing, special metallurgy processing, and other industrial and research fields that require a protective atmosphere.
Overview of Ammonia Cracking Hydrogen Production Technology
Ammonia cracking produces hydrogen through a catalytic decomposition process, in which liquid ammonia is decomposed at high temperature into a hydrogen-nitrogen mixture (H₂+ N₂). With an integrated purification system, the process can flexibly deliver either the mixed gas or high-purity hydrogen. The technology adopts a modular design, integrating key components such as evaporators, electric heating cracking furnaces, high-efficiency heat exchangers, and purification systems.
Reaction Principle
Under the action of a nickel-based catalyst, liquid ammonia undergoes thermal decomposition at 500–850 °C, producing a mixed gas with a standard composition of 75% H₂and 25% N₂.
Reaction equation:
2NH₃→3H₂+ N₂(ΔH = +92 kJ/mol)
The resulting hydrogen-nitrogen mixture is an ideal protective atmosphere with the following features:
· Oxygen-free characteristics (O₂< 1 ppm)
· Reducing atmosphere
· Stable composition
It is widely used in semiconductor device manufacturing, special metallurgy processing, and other industrial and research fields that require a protective atmosphere.
Application Scope
TheAmmonia Cracking Hydrogen Generatoris specifically designed for small-to-medium-scale hydrogen demands. Using ahigh-efficiency nickel-based catalyst, it can be flexibly applied in scenarios such assemiconductor manufacturing, special metal heat treatment, photovoltaic wafer processing, and research laboratories. The system integrates core units includingliquid ammonia vaporization, catalytic cracking, and gas purification, offering rapid start-up, wide load adjustment, and fully automated operation. It can produce either astandard mixture (75% H₂/ 25% N₂)orhigh-purity hydrogen (≥99.99 %), delivering a stable and reliable gas solution for precision manufacturing industries.
Dual-mode capability for hydrogen or hydrogen-nitrogen mixed gas
Tailored for semiconductor, photovoltaic, and precision manufacturing
Operating temperature: 500–850 °C
Ammonia conversion rate ≥ 99.5%
Containerized modular structure
Rapid on-site deployment
Fully automated one-button operation
Remote monitoring and fault diagnostics
