Patent ID: 6222088
Filing Date: 2001-04-24
Classification: C07C,C11D

Abstract:
A simulated moving bed process for the adsorptive separation of a monomethyl acyclic hydrocarbon from a feed mixture comprising the monomethyl acyclic hydrocarbon and at least one other acyclic non-normal hydrocarbon of the same carbon number, which process comprises passing a pre-pulse stream comprising a non-normal hydrocarbon into an adsorbent bed at a first location along the length of the adsorbent bed maintained at adsorption promoting conditions, passing the feed mixture into the bed of adsorbent at the first location or at a second location immediately downstream of the first location, and then recovering a selectively adsorbed monomethyl acyclic hydrocarbon from the bed of adsorbent by contacting the adsorbent bed with a desorbent compound.