Synthesis gas purification process

Details Synthesis gas purification process Synthesis gas purification process

B - Operations, Transporting

01

D

B01D 53/04 (2006.01) B01D 53/047 (2006.01) B01D 53/62 (2006.01) B01J 20/16 (2006.01) C01B 3/56 (2006.01)

Patent

CA 2411144

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).

La présente invention concerne un procédé de purification de gaz de synthèse type CO/H2, ou N2/H2, qui consiste à éliminer CO2 et éventuellement d'autres impuretés gazeuses (eau, etc.) avant passage dans un procédé cryogénique. Ces impuretés sont adsorbées par passage du flux gazeux à purifier sur une zéolite de type NaLSX, puis désorbées fors d'une étape de régénération qui peut se faire par élévation de la température (TSA) et/ou par diminution de la pression (PSA ou VSA)

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