IP Library Granted Patent US 8,945,351
Granted Patent B2
US 8,945,351 · App. 13/191,019 · Granted Feb 3, 2015

Induction heated gasifier

Inventors: James E. Bratina (Greenwood, IN); David Bowering (Indianapolis, IN); Anthony Kriech (Indianapolis, IN); Perry Eyster (Brownsburg, IN); Thomas Roberts (Noblesville, IN)
Assignee: Heritage Environmental Services LLC
C10J3/007B01D3/08C01B31/18C10G7/00C01B31/20C10M175/0033C10J2300/1269Y10S203/11
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Quick Facts
Patent No.
US 8,945,351
App. No.
13/191,019
Granted
Feb 3, 2015
Kind
B2
Abstract

A method of removing organic components from a mixture containing organic and inorganic components which method involves providing an induction heated screw conveyor having an auger and passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor primarily from the center of the induction heated screw conveyor. The mixture is heated to a temperature that is sufficient to cause the organic components in the mixture to separate from the mixture as a vapor. The oxygen concentration in the induction heated screw conveyor is controlled so as to gasify the organic components. The gasified organic components are removed and the remaining inorganic components are collected.

Claims (16)

1. A method of removing organic components from a mixture containing organic and inorganic components which method comprises:

providing an induction heated screw conveyor having an auger; passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor primarily from the center of the induction heated screw conveyor;

allowing the organic components in the mixture to gasify and separate from the mixture as a vapor; and

removing the gasified organic components,

wherein the mixture is heated to a temperature of 600° F. or greater.

2. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , further comprising the step of controlling the oxygen concentration in the induction heated screw conveyor so as to gasify carbon from the organic components into carbon dioxide.

3. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , further comprising the step of controlling the oxygen concentration in the induction heated screw conveyor so as to gasify carbon from the organic components into carbon monoxide.

4. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein the inorganic components that remain after the organic components are removed are collected.

5. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein the mixture comprises a solid phase.

6. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein the mixture comprises a waste material.

7. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein the induction heated thermal screw is sealed off from the ambient atmosphere.

8. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein a portion of the organic compounds are gasified after being separated from the mixture.

9. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein a portion of the organic compounds are gasified before being separated from the mixture.

10. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein a portion of the organic compounds in the mixture are thermally cracked by the heating.

11. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein the removed gasified organic components are removed as a gas that has a combustible heat value.

12. A method of removing organic components from a mixture containing organic and inorganic components according to claim 1 , wherein the inorganic components that remain after the organic components are removed are recycled.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2021
From: HERITAGE RESEARCH GROUP
To: HERITAGE RESEARCH GROUP, LLC
Reel/Frame 057264/0328 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2015
From: HERITAGE ENVIRONMENTAL SERVICES LLC
To: HERITAGE RESEARCH GROUP
Reel/Frame 034801/0577 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 15, 2014
From: BRATINA, JAMES E.; BOWERING, DAVE; KRIECH, ANTHONY; EYSTER, PERRY; ROBERTS, TOM
To: HERITAGE ENVIRONMENTAL SERVICES LLC
Reel/Frame 033956/0252 →
Continuity (2)
Provisional Application 61368060 · Jul 27, 2010
Related Publication 20120027662A1 · Feb 2, 2012