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Application filed by Uop IncfiledCriticalUop Inc
Priority to MYPI9502688priorityCriticalpatent/MY134725A/en
Publication of MY134725ApublicationCriticalpatent/MY134725A/en
Solid-Sorbent Or Filter-Aiding Compositions
(AREA)
Abstract
IN USING CALCIUM-EXCHANGED FORMS OF ZEOLITE X AS SELECTIVE ADSORBENTS FOR NITROGEN IN PSA AIR SEPARATION PROCESS, IT HAS BEEN DISCOVERED THAT, PARTICULARLY UNDER CERTAIN TEMPERATURE AND PRESSURE CONDITIONS, THE PEAK PERFORMANCE IS NOT, AS IS GENERALLY BELIEVED, OBTAINED WHEN THE CALCIUM CONTENT IS AT A MAXIMUM, BUT RATHER WHEN THE DEGREE OF CALCIUM EXCHANGE IS IN THE RANGE OF 60 TO 89 EQUIVALENT PERCENT AND ONLY WHEN THE FRAMEWORK Si/A12 RATIO OF THE ZEOLITE IS WITHIN THE RANGE OF 2.0 TO 2.4.
MYPI95026881995-09-111995-09-11Air separation process
MY134725A
(en)
Industrial adsorbents comprising X-type zeolites with low silica content for the non cryogenic separation of air gases and process for their preparation.