Wasserstoff‐Produktion aus Kohlenwasserstoffen. Fortschritte und Entwicklungstendenzen bei Synthese und Reinigung

Abstract

AbstractProduction of hydrogen from hydrocarbons. Hydrocarbons are the preferred starting materials for the industrial production of hydrogen. Most hydrogen is produced by steam reforming of light hydrocarbons. Partial oxidation of heavy oil and residue is used for the production of H2 and synthesis gas in large plants. In both cases gas purification was improved. Hydrogen‐rich gases like coke oven gas, refinery‐offgas, and offgases from the chemical and petrochemical industry have high potential for becoming a major source of hydrogen. Processes for recovering H2 (and by‐products) are condensation and rectification at low temperatures and, most attractive and versatile for the production of very pure H2, adsorption (PSA). The environmental impact of H2 production lies mainly in the emission of CO2 and heat. Other forms of pollution can be considerably reduced by conventional methods. The economy of H2 production depends essentially on price and availability of the raw materials.