Patent-family-84569480

A plant, e.g. a syngas plant or hydrogen plant, or a combined syngas and hydrogen plant is provided. The plant comprises a reforming section, a CO₂-removal section and a first electrolysis unit. A first portion of a first CO₂-rich stream outputted from the CO₂-removal section is arranged to be supplied to the anode of the first electrolysis unit as a sweeping gas for oxygen product gas. Certain streams, downstream the first electrolysis unit are arranged to be fed to the reforming section as at least a portion of an oxygen-rich feed. Various processes are also provided for the production of hydrogen and/or syngas in the plant.