Patent ID: 6670519
Filing Date: 2003-12-30
Classification: C10G

Abstract:
A simulated moving bed adsorptive separation process for the separation of a C8 to C14 monomethyl paraffin from a feed mixture comprising the monomethyl paraffin and at least one other acyclic C8 to C14 non-normal hydrocarbon of the same carbon number, with the feed mixture containing less than 5 wt. % normal C8 to C14 paraffins, which process comprises passing the feed mixture into a bed of adsorbent under operating conditions which include an A/F ratio of 0.5 to 1.5, a temperature of from about 30 to 120Â° C., and a cycle time of about 20 to 60 minutes, and then recovering selectively adsorbed monomethyl paraffin from the bed of adsorbent by contacting the bed of adsorbent with a desorbent compound wherein a positive amount less than 95 percent of the monomethyl paraffin is removed from the feed mixture.