Patent ID: 6784334
Filing Date: 2004-08-31
Classification: C10G

Abstract:
A process for separating multibranched paraffins comprised in a hydrocarbon feed comprising hydrocarbons containing 5 to 8 carbon atoms per molecule, wherein said hydrocarbon feed contains linear, monobranched and multibranched paraffins, comprising:bringing said hydrocarbon feed into contact with at least one zeolitic adsorbent whereby multibranched paraffins are separated from said hydrocarbon feed, and fractionating said hydrocarbon feed into at least two distinct effluents, a first effluent comprising multibranched paraffins and having a high octane number, and a second effluent which has a low octane number, said adsorbent having at least two types of channels, principal channels with an opening defined by a ring of 10 oxygen atoms and secondary channels with an opening defined by a ring of at least 12 oxygen atoms, said secondary channels only being accessible to said hydrocarbon feed via said principal channels, wherein said zeolitic adsorbent is a zeolite with structure type NES, a zeolite with structure type MWW, a NU-85 zeolite, or a NU-86 zeolite.