SYNGAS PURIFICATION PROCESS

摘要

THE PRESENT INVENTION RELATES TO A PROCESS FOR PURIFYING A SYNGAS OF THE CO/H2 OR N2/H2 TYPE, WHICH CONSISTS IN REMOVING CO2 AND POSSIBLY OTHER GASEOUS IMPURITIES (WATER, ETC.) BEFORE THE GAS UNDERGOES A CRYOGENIC PROCESS. THESE IMPURITIES ARE ADSORBED BY THE GAS STREAM TO BE PURIFIED PASSING OVER AN NALSX-TYPE ZEOLITE AND THEN DESORBED DURING A REGENERATION STEP WHICH MAY BE PERFORMED BY RAISING THE TEMPERATURE (TSA) AND/OR REDUCING THE PRESSURE (PSA OR VSA).