Method for pelletizing carbon black reclaimed from waste tires

A method for converting tires into pelletized, recovered carbon black comprising:

• shredding a set of tires into a volume of tire rubber segments, the set of tires consisting of agricultural tires, commercial vehicle tires, and passenger tires according to a specified tire ratio wherein the at least one agriculture tire comprises a first mixture of carbon black grades and inorganic materials, the at least one commercial vehicle tire comprises a second mixture of carbon black grades and inorganic materials, and the at least one passenger tire comprises a third mixture of carbon black grades and inorganic materials, wherein the first mixture is distinct from the second mixture and the third mixture, and wherein the specified tire ratio is selected to limit sulfur content in the volume of tire rubber segments to less than twenty percent by weight;
• in a pyrolytic reactor, thermally depolymerizing the volume of tire rubber segments, within an inert atmosphere, into a set of pyrolytic byproducts comprising a volume of carbonaceous material exhibiting composite properties of carbon black grades extracted from the set of tires;
• within a pelletizing system:
• a. comminuting the volume of carbonaceous material to reduce a diameter of an agglomerate within the volume of carbonaceous material to less than a maximum agglomerate diameter;
• b. within a mixer:
• i. spraying the volume of carbonaceous material with a binding agent;
• and
• ii. mixing the volume of carbonaceous material over a first interval, the mixer inducing formation of a set of pellets of a range of pellet diameters, the first interval defined by a feed rate of a retort within the mixer and a length of the mixer;
• c. drying the set of pellets within a dryer to a particular moisture content over a second interval defined by a rate the set of pellets translates across a length of the dryer and an operating temperature of the dryer, the rate the set of pellets translates across the length of the dryer defined by an angle between a plane of the length of the dryer and a horizontal plane;
• d. removing from the set of pellets a first subset of pellets larger than a maximum pellet size.