Air Products and Chemicals, Inc.
Dual product H.sub.2 and CO production with CO turndown

Abstract:

Process and apparatus for producing a H.sub.2-containing product and a CO-containing product with CO-containing product turndown capability. The H.sub.2-containing product is produced in a process train with a shift reactor and pressure swing adsorption unit. The CO-containing product is produced in a process train with a CO.sub.2 removal unit and a cryogenic separation unit. During the CO-containing product turndown mode, a portion or all of the CO-containing product is passed to the shift reactor in the H.sub.2-containing product train to form additional H.sub.2.