Apparatus for low temperature distillation of carbonaceous materials

Claim 1

IN AN APPARATUS INCLUDING A CARBONIZER UNIT FOR DISTILLING CARBONACEOUS MATERIAL TO PRODUCE CHAR AND VOLATILES; THE IMPROVEMENT WHICH COMPRISES A FILTER UNIT INCLUDING A CASING HAVING SPACED APART UPPER AND LOWER PORTIONS INTERCONNECTED BY A DUCT PORTION, SAID UPPER PORTION HAVING AN INLET ADAPTED TO RECEIVE CHAR FROM THE CARBONIZER UNIT AND THROUGH WHICH CHAR PASSES INTO SAID DUCT AND LOWER PORTIONS TO PROVIDE A BODY OF CHAR THEREIN, CONVEYING MEANS POSITIONED IN SAID LOWER PORTION FOR REMOVING CHAR THEREFROM AT A PREDETERMINED RATE TO MAINTAIN THE BODY OF CHAR IN SAID DUCT AND LOWER PORTIONS, SECOND CONVEYING MEANS IN SAID UPPER PORTION ADAPTED TO PREVENT FLUCTUATIONS IN CHAR OUTPUT OF THE CARBONIZER FROM FILLING SAID UPPER PORTON WITH CHAR, AND MEANS CONNECTED TO SAID LOWER PORTION FOR DRAWING THE VOLATILES THROUGH THE BODY OF CHAR TO FILTER FOREIGN PARTICLES FROM THE VOLATILES.