Separation of hydrogen and carbon monoxide from mixture involves using unit of membrane permeation with purification stage upstream of permeation stage

摘要

Separation of a gaseous mixture involves using a permeation membrane. The mixture, from a reaction unit, comprises mainly hydrogen and carbon monoxide and impurities, including water, carbon dioxide, methane, nitrogen and/or argon. A purification stage is upstream of the membrane, to reduce the contents of secondary constituents to less than 100 ppm molar. An Independent claim is also included for the installation for use in the above process.