Process for obtaining an etherification feedstock

摘要

Method for preparing a hydrocarbon feedstock (A) for etherification, where (A) has reduced contents of dienes (I), and nitrogen or sulfur compounds (II), from an initial fraction (B) containing olefins (III), (I), nitriles and sulfur compounds. It comprises (a) selective hydrogenation of (B) in presence of a Group VIII metal catalyst and (b) fractional distillation of the product to give (A) and a heavy fraction (C) containing heavy hydrocarbons and most of (II).