
Hydrogen purification and separation
Hydrogen purification and separation involve removing impurities from hydrogen gas to achieve high purity levels needed for applications like fuel cells or industrial processes. Techniques include pressure swing adsorption (PSA), membrane separation, and cryogenic distillation. PSA uses activated carbon and other materials to trap contaminants; membranes allow hydrogen to pass through while blocking impurities; cryogenic distillation cools gases to separate them based on their boiling points. These methods ensure that the hydrogen is clean, safe, and effective for its intended use, making the process essential for producing high-quality hydrogen for energy and manufacturing industries.