The principle of pressure swing adsorption for hydrogen production:

Under certain pressure, using an adsorption bed composed of various adsorbents such as activated carbon, silica gel, molecular sieve, and alumina, the impurity components in various hydrogen sources such as methanol cracking gas, ammonia runaway gas, catalyst dry gas from oil refineries, shift gas, water gas, and semi-water gas are selectively adsorbed under pressure. The hydrogen that is difficult to adsorb is output as product gas from the outlet of the adsorption tower, thereby achieving the purpose of purifying hydrogen.

Pressure Swing Adsorption Hydrogen Production Process Flow Chart

Characteristics of Pressure Swing Adsorption Hydrogen Production Technology:

1. Simple process: Selecting the appropriate adsorption material can remove impurities from the gas mixture;

2. High hydrogen purity of the product: It can be adjusted to a range of H2 ≥ 99.99%;

3. Large operational flexibility: The device can operate under conditions where the raw material conditions (pressure, flow rate and composition) change and produce qualified products;

4. Stable operation of the device: Safe, reliable, simple to operate, with a high degree of automation, and all operations can be automated;

5. No environmental pollution: During the production process, no environmental pollution will be generated;

6. Low operating costs: Apart from the necessary costs of the raw materials, the operating cost is only for the electricity consumption of the instruments.