Adsorptive separation of isopentane and d-methyl branched...

Details Adsorptive separation of isopentane and d-methyl branched... Adsorptive separation of isopentane and d-methyl branched...

B - Operations, Transporting

01

D

182/6.5

B01D 15/00 (2006.01) B01J 29/04 (2006.01) C10L 1/06 (2006.01)

Patent

CA 2024093

"ADSORPTIVE SEPARATION OF ISOPENTANE AND DI-METHYL BRANCHED PARAFFINS FROM MONO-METHYL BRANCHED PARAFFINS" ABSTRACT Isopentane and di-methyl branched paraffins are separated from a feed containing same in admixture with di- methyl branched paraffins by contacting the feed with a molecular sieve adsorbent having elliptical pores of 5 to 5.5 Angstroms along the minor axis and 5.5 to 6 Angstroms along the major axis under separation conditions effective to adsorb mono-methyl branched paraffins, including isopentane, to form a mass transfer zone having isopentane concentrated at the edge thereof and to produce a portion of an adsorption effluent enriched in di-methyl branched paraffins; thereafter isopentane is eluted to produce a second portion of an adsorption effluent and the resulting rich adsorbent is subsequently regenerated by desorption of the mono-methyl paraffins.

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