Pyrolysis reactor and method of pyrolyzing biomass waste residue
AssigneePyrogenesys Limited
InventorsSimon Ighofose, Muhammad Saghir, Joseph Socci, Joseph Enyinwa Eke
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Abstract
A pyrolysis reactor having an inlet for material and an outlet for products is provided. The reactor includes a screw for conveying biomass waste from the inlet to the outlet. The screw includes a shaft with a first end and a second end adjacent the outlet and a helical flight arranged about the shaft and extending between the first and second ends. The pitch of the flight alters between the first and second ends of the shaft. The screw has a heater extending from the first end to the second end.
Claims18
A pyrolysis reactor having an inlet for biomass waste material and an outlet for products, the reactor comprising a screw for conveying biomass waste material from the inlet to the outlet, the screw comprising a shaft with a first end and a second end adjacent the outlet and a helical flight arranged about the shaft and extending between the first and second ends, wherein the pitch of the flight alters between the first and second ends of the shaft, the diameter of the shaft increases along its length towards the outlet and the depth of the flight decreases in the direction from the inlet towards the outlet, the screw having a heater extending from the first end to the second end.
A method of pyrolyzing biomass waste residue in a pyrolysis reactor, the reactor comprising a screw for conveying biomass waste residue from a first end of the screw to an outlet at a second end of the screw, the screw comprising a shaft with a first end and a second end adjacent the outlet and a helical flight arranged about the shaft and extending between the first and second ends, wherein the pitch of the flight alters between the first and second ends of the shaft, the diameter of the shaft increases along its length towards the outlet and the depth of the flight decreases in the direction from the inlet towards the outlet, the method comprising:
- a) heating biomass waste residue between the first and second ends of the screw in order to partially pyrolyze the biomass waste residue by heating the screw;
- and
- b) increasing the pressure of the partially pyrolyzed biomass waste residue to thereby further pyrolyze the partially pyrolyzed biomass waste residue.
Dependencies are inferred from the claim text.