Processing of biofuels

Abstract

1. A method for treating biofuel comprising! (A) contacting the fluid comprising called biofuel with an adsorbent and! (B) regeneration of said adsorbent, wherein said adsorbent comprises at least two different metal oxides. ! 2. The method of claim 1, wherein said biofuel comprises esters, alcohols or mixtures thereof. ! 3. The method of claim 1, where said metal oxides comprise silica, alumina, aluminosilicate or mixtures thereof. ! 4. Product obtained by the process of claim 1. ! 5. A device using the method according to claim 1. ! 6. A method of treating biofuel comprising! (A) contacting a fluid comprising the titled biofuel with a first adsorbent; ! (B) performing the said fluid contact with a second adsorbent and! (C) regenerating the at least one of said first and said second adsorbents. ! 7. A method of treating biofuel comprising! (A) contacting the fluid comprising called biofuel with an adsorbent and! (B) regeneration of said adsorbent with a polar solvent used in the manufacture of said biofuel. ! 8. The method of claim 7, wherein said polar solvent comprises alcohol. ! 9. A process for treating alkyl esters comprising! (A) contacting a fluid comprising mentioned alkyl esters with an adsorbent and! (B) regeneration of said adsorbent. ! 10. An adsorbent for treating biofuel comprising at least two different metal oxides. ! 11. The adsorbent according to claim 10, wherein said adsorbent comprises particles, extrudates, membranes, composites, layers, beads or combinations thereof. ! 12. The adsorbent according to claim 11, wherein