Natural gas to LNG

The reformed gas hydrogen production system is designed to convert CO-rich raw gas into a hydrogen-rich stream through a catalytic shift reaction, followed by purification using pressure swing adsorption (PSA). In this process, carbon monoxide in the feed gas is first converted into carbon dioxide and hydrogen, resulting in a reformed gas mixture that serves as a key upstream feedstock for hydrogen production in coal chemical applications.

After purification, the system enables the production of high-purity hydrogen. When combined with CO₂ capture and recovery technologies, the desorbed gas can be further processed to recover carbon dioxide, which can be utilized for applications such as food-grade CO₂ production, improving overall resource utilization and economic efficiency.

This hydrogen production route is widely used in coal chemical processes due to its relatively simple configuration, stable operation, and favorable investment cost structure.

Process Flow Overview

The typical reformed gas hydrogen production system includes the following stages:

• Raw gas preheating

• Saturated hot water tower humidification

• Gas-liquid separation

• Catalytic shift reaction unit

• Heat exchange system

• PSA (Pressure Swing Adsorption) hydrogen purification

To further enhance carbon utilization efficiency, an optional MDEA-based decarbonization unit can be integrated before the PSA section to reduce CO₂ content in the feed gas.

Technical Features

• Stable and mature process design based on proven coal chemical hydrogen production routes

• High hydrogen recovery efficiency, ensuring effective utilization of reformed gas resources

• Flexible operating performance, suitable for varying feed gas conditions and production demands

• High automation level, supporting continuous and stable industrial operation with reduced manual intervention

Application Scope

This reformed gas hydrogen production system is primarily applied in coal chemical industry hydrogen production processes and related gas purification and resource recovery systems.