Method and apparatus for continuous recycling of waste plastic into liquid fuels

A method for continuous recycling of waste plastic feedstock into liquid fuels using a system comprising an apparatus for pyrolyzing the feedstock, wherein the apparatus comprises:

• a rotary retort vessel configured to be heated, the rotary retort vessel comprising:
• an input end configured to receive the feedstock;
• an output end configured to allow byproducts of pyrolysis to exit the rotary retort vessel, wherein the rotary retort vessel is declined towards the output end with respect to the input end;
• an input cylindrical portion of uniform diameter disposed towards the input end, an output cylindrical portion of uniform diameter disposed towards the output end, an intermediate cylindrical portion of uniform diameter, a first tapered portion and a second tapered portion, wherein,
• the first tapered portion connects the input cylindrical portion to the intermediate cylindrical portion;
• the second tapered portion connects the intermediate cylindrical portion to the output cylindrical portion;
• and
• the internal diameter of the intermediate cylindrical portion is greater than the internal diameter of the output cylindrical portions;
• at least one partition structure, wherein the partition structure is a flat plate that extends continuously along the length of the rotary retort vessel from the input end to the output end, and is of a width equal to the inner diameter of the rotary retort vessel;
• and
• a gas-residue separator engaged at the output end of the rotary retort vessel, wherein the partition structure extends up to the output end;
• the method comprising:
• sending the feedstock into the rotary retort vessel at the input end of the rotary retort vessel, wherein the rotary retort vessel is rotating;
• receiving the feedstock on either side of the partition structure;
• pyrolizing the feedstock in the rotary retort vessel, wherein the feedstock produces gaseous byproducts and non-gaseous byproducts, wherein the gaseous byproducts comprises hydrocarbon vapors;
• moving the byproducts towards the output end of the rotary retort vessel, wherein the movement is facilitated by declination of the rotary retort vessel and the partition structure;
• and
• continuously discharging the non-gaseous byproducts from the rotary retort vessel, wherein at least a part of the non-gaseous byproducts move over the surface of the partition structure toward the output end of the rotary retort vessel and exit the rotary retort vessel.