Method for producing high purity hydrogen and high purity carbon monoxide

摘要

The present invention relates to a process for the preparation of And less than 0.1 mol ppm And 1 to 7 mol% of methane The crude gas mixture is treated by pressure cyclic adsorption to compress the CO-rich gas obtained by desorption during regeneration by pressure cycling adsorption, while cooling to at least partially condense it, and into the phase separator Transported, -After separation into the hatching fraction and the liquid CO-hatching fraction, -heat the hatching fraction, Before the crude gas mixture is fed into the pressure-cycled adsorbent /RTI To a process for producing high purity hydrogen and high purity carbon monoxide by separation of the crude gas mixture. At least a portion of the liquid CO-enriched fraction from the phase separator is partially condensed, heated, and carried into the lower region of the double distillation tube having upper, middle and lower regions to remove the liquid methane fraction from the bottom of the distillation tube , The liquid high purity carbon monoxide product fraction is discharged from the middle region of the distillation tube, and the gaseous CO-enriched fraction is discharged from the upper portion of the distillation tube.