Process for regenerating filter aid used in a winterization process
AssigneeBunge NöVéNyolajipari ZáRtköRuen MuköDo RéSzvéNytáRsasáG
InventorsZsolt KEMENY, Stéphane GOLINSKI, Oleg BEREZNEV, Andrey MAKARENKO
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Abstract
The present invention relates to a process for in situ regeneration of spent filler aid including the steps of: a) circulating through a spent filter aid cake in a circulation loop a regenerating oil at a temperature of from 40° C. to 100° C., in a regenerating oil spent filter aid (v/w)ratio from 0,3/1 to 12/1; b) removing the regenerating oil from the treated spent filter aid cake; and recovering the regenerated filter aid,
Claims12
A process for in situ regeneration of spent filter aid from a winterization process on a pressure leaf filter comprising the successive steps of:
- a) circulating a regenerating oil through a spent filter aid cake in a direction of filtration in a circulation loop at a temperature of from 40° C. to 100° C., in a regenerating oil/spent filter aid (v/w) ratio of from 0.3/1 to 12/1;
- b) removing a portion of the regenerating oil from the spent filter aid cake resulting from step a), by draining and then blowing the treated spent filter aid cake, to form a treated spent filter aid cake containing from 35% to 50% of regenerating oil;
- and
- c) recovering the treated spent filter aid cake thus regenerated.
Dependencies are inferred from the claim text.