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method for the separation of non branched alkanes from a uitgangsmengsel non branched alkanes, branched alkanes and aromatic hydrocarbons contains.
method for the separation of non branched alkanes from a uitgangsmengsel non branched alkanes, branched alkanes and aromatic hydrocarbons contains.
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机译:从厄特冈格塞尔分离非支链烷烃的方法包含非支链烷烃,支链烷烃和芳烃。
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摘要
An improved process for separating normal paraffins from a feed stream containing a mixture of normal paraffins, isoparaffins and aromatic hydrocarbons to produce a normal paraffin product stream having a reduced concentration of contaminant aromatic hydrocarbons. The general process comprises the steps of contacting the feed stream with an adsorbent comprising a crystalline aluminosilicate wherein normal paraffins are adsorbed within the pores of the adsorbent and contaminant aromatics are adsorbed on the surface of the adsorbent and subsequently contacting the adsorbent with a desorbent material to remove both adsorbed normal paraffins and contaminant aromatics. The improvement resides in using a two-stage desorption step in which a first desorbent material contacts the adsorbent and removes surface-adsorbed aromatic contaminants and then a second desorbent material contacts the adsorbent to remove normal paraffins adsorbed within the pores of the adsorbent.
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