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Ammonia (NH₃) is a representative energy carrier capable of storing and transporting hydrogen. Ammonia cracking is a technology that decomposes stored ammonia into hydrogen (H₂) and nitrogen (N₂) at the point of demand, producing hydrogen usable in fuel cells and industrial processes.
Seowoin is developing an ammonia-based hydrogen production system grounded in ammonia cracking reactor and catalyst technology. This technology can be extended beyond ships to land-based power generation, industrial hydrogen supply, and mobile power applications.

The ammonia cracking process decomposes ammonia into hydrogen and nitrogen under high-temperature catalytic reaction conditions.

NH₃

H₂

N₂
Key factors in this process include reaction temperature, pressure, catalyst performance, thermal management, and startup time. Seowoin is developing a rapid-heating ammonia cracking reactor aimed at fast startup and stable hydrogen production.
The performance of the ammonia cracking reaction is highly dependent on the catalyst. Seowoin applies Ru-based ammonia cracking catalysts to develop reaction conditions for stable hydrogen production.
The ammonia cracking reaction proceeds at high-temperature conditions. Seowoin aims to achieve high conversion rates under cracking operation conditions at approximately 500°C.
Thermal management technology is being developed in parallel to analyze and recover heat generated from the ammonia cracking reactor, fuel cell, and exhaust gas, thereby improving system efficiency.
| Parameter | Performance |
|---|---|
| Ammonia Cracking Temperature | 500℃ |
| Ammonia Cracking Pressure | 6bar |
| Ammonia Cracking Conversion Rate | ≥ 98% |