SYNGAS PURIFICATION PROCESS

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 a...

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Bibliographic Details
Main Author BEC, REMI LE
Format Patent
LanguageEnglish
Spanish
Published 03.09.2004
Edition7
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary: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 presente invencion se refiere a un procedimiento de purificacion de gas de sintesis de tipo CO/H2, o N2/H2, que consiste en eliminar CO2 y eventualmente otras impurezas gaseosas (agua, etc.) antes del paso a un procedimiento criogenico. Estas impurezas son adsorbidas por el paso del flujo gaseoso que se trata de purificar por una zeolita de tipo NaLSX, luego desorbidas durante una etapa de regeneracion que puede realizarse por elevacion de la temperatura (TSA) y/o por disminucion de la presion (PSA o VSA).
Bibliography:Application Number: MX2002PA10752