Method of production of 1996, from a gas rich in 1996

摘要

The present invention relates to a process for the production of hydrogen from a gas rich in hydrogen, in which there are n adsorbers, which follow each in a cycle in which each of the adsorption phases, the regeneration of elution and repressurization, and in which it is recycled at least a portion of the flow leaving the adsorbers in the regeneration phase, by compressing said part being recycled to the high pressure of the cycle and feeding at least one of the adsorbers in the adsorption phase with the recycled part. The regeneration phase comprises a - depressurization step comprising a - depressurization step to co - current with partial balancing. The ratio of balancing neq is between 1,8inphp - 3,5 and 0,6inphp - 1,8, php representing the value of the high pressure of the cycle.