Hydrogen production system and hydrogen production method
The hydrogen production system addresses the challenge of recycling iron nitride by using controlled denitrification treatment, enhancing ammonia decomposition efficiency and reducing costs through efficient catalyst recycling.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- POSCO HLDG INC
- Filing Date
- 2025-12-03
- Publication Date
- 2026-06-25
AI Technical Summary
Existing hydrogen production systems using iron-based catalysts face challenges in recycling iron nitride formed during ammonia decomposition, leading to inefficiencies and increased costs.
A hydrogen production system and method that includes a hydrogen production device configured to produce hydrogen by contacting a first gas containing ammonia with a first reduced iron, and a reduced iron regeneration device to denitrify the second reduced iron using a reducing gas, with controlled denitrification treatment time and temperature to achieve efficient recycling.
The system enables effective recycling of iron-based catalysts, improving ammonia decomposition efficiency and reducing operational costs by minimizing nitrogen content and optimizing denitrification treatment.
Smart Images

Figure KR2025020649_25062026_PF_FP_ABST