Importance

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Abstract

A method is disclosed for removing contaminants from a feed stream to a hydrogenation process that begins with providing a product mixture from an air oxidation reaction. A first liquid separation process and cooling procedure is used on the product mixture to form a cooled product mixture and a first vapor stream. The cooled product mixture is then subjected to a water wash to form a washed product mixture and an aqueous exit stream, wherein a majority of the water soluble other oxidation products from the cooled product mixture are present in the aqueous exit stream. Next, the washed product stream undergoes a second liquid separation and water removal to form a treated product mixture and a second vapor stream. Finally, the treated product mixture is recovered and can be fed to a hydrogenation process.

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First Claim