IP Library Granted Patent US 12,415,170
Granted Patent B2
US 12,415,170 · App. 18/656,961 · Granted Sep 16, 2025

Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and methods

Inventors: Martin Redeker (Pittsburgh, PA); Joseph P. Carroll, Jr. (Pittsburgh, PA)
Assignee: Montauk AG Renewables, LLC
B01J19/0013B01J8/0285B01J19/20C10J3/723C22C19/051
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Quick Facts
Patent No.
US 12,415,170
App. No.
18/656,961
Granted
Sep 16, 2025
Kind
B2
Abstract

Electric-powered, closed-loop, continuous-feed, endothermic energy-conversion systems and methods are disclosed. In one embodiment, the presently disclosed energy-conversion system includes a shaftless auger. In another embodiment, the presently disclosed energy-conversion system includes a drag conveyor. In yet another embodiment, the presently disclosed energy-conversion system includes a distillation and/or fractionating stage. The endothermic energy-conversion systems and methods feature mechanisms for natural resource recovery, refining, and recycling, such as secondary recovery of metals, minerals, nutrients, and/or carbon char.

Claims (32)

1. A method for converting energy, comprising the steps of:

providing an energy-conversion system, the energy-conversion system comprising:

a controller;

a reactor operated by the controller;

a shaftless auger in the reactor, the shaftless auger adapted to rotate in contact with inner walls of the reactor; and

a heater surrounding the reactor and the shaftless auger;

supplying feedstock material to the energy-conversion system;

processing the feedstock material;

supplying the processed feedstock material to the inlet of the reactor;

advancing the processed feedstock through the reactor while the reactor facilitates a phase- change process of at least a portion of the feedstock from solid to liquid to vapor;

maintaining through the heater accurate and consistent temperature within reactor;

maintaining a positive pressure in the energy-conversion system; and

discharging from reactor outlets char and vapor obtained from the reacted feedstock.

2. The method of claim 1 , further comprising:

removing particulates from the discharged vapor;

quenching the discharged vapor to remove impurities from the discharged vapor;

after the quenching, transitioning through a pressure transition component from the positive pressure to a negative pressure in the energy-conversion system; and

supplying the quenched vapor to a vacuum buffer tank.

3. The method of claim 2 , further comprising the steps of:

advancing the supplied vapor to a regulator;

removing liquid from the advanced vapor; and

cooling the advanced vapor.

4. The method of claim 1 , further comprising the step of advancing the discharged vapor to a quench station.

5. The method of claim 3 , further comprising performing a filter-less quenching gas clean-up operation on the advanced vapor; and forming and discharging syngas.

6. The method of claim 3 , further comprising the step of advancing the vapor to an atmospheric fractioning unit.

7. The method of claim 1 , further comprising the steps of advancing the vapor to an automated plunging system.

8. The method of claim 1 , wherein a length of the reactor is based on a determined residence time.

9. The method of claim 1 , wherein processing the feedstock material comprises at least one of metering and/or drying the feed stock material.

10. The method of claim 1 , wherein processing the feedstock comprises application of one or more metered sorbents and/or reagents.

11. The method of claim 2 , wherein a minimum temperature of the supplied vapor is maintained prior to the quenching.

12. The method of claim 2 , wherein the quenching comprises passing the supplied vapor through first quenching stage, optionally a multi-tube plunging condenser, and a second quenching stage.

13. The method of claim 2 , further comprising after the quenching cooling and/or condensing at least a portion of the supplied vapor.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Mar 13, 2026
From: FIFTH THIRD BANK, N.A., SUCCESSOR BY MERGER TO COMERICA BANK
To: MONTAUK ENERGY HOLDINGS, LLC; MONTAUK AG RENEWABLES, LLC
Reel/Frame 074072/0080 →
SECURITY INTEREST Recorded Mar 9, 2026
From: MONTAUK ENERGY HOLDINGS, LLC; MONTAUK AG RENEWABLES, LLC; NR-3, LLC
To: CCH1 MEH LENDER LLC
Reel/Frame 074016/0476 →
SECURITY INTEREST Recorded Jan 6, 2026
From: MONTAUK AG RENEWABLES, LLC; MONTAUK ENERGY HOLDINGS, LLC
To: COMERICA BANK
Reel/Frame 073377/0110 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2024
From: REDEKER, MARTIN; CARROLL, JOSEPH P., JR.
To: NR-3, LLC
Reel/Frame 067335/0204 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2024
From: MONTAUK RENEWABLES, INC.
To: MONTAUK AG RENEWABLES, LLC
Reel/Frame 067337/0087 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2024
From: NR-3, LLC
To: MONTAUK RENEWABLES, INC.
Reel/Frame 067336/0529 →
Continuity (5)
Continuation 18089114 · Dec 27, 2022
Continuation 17409159 · Aug 23, 2021
Continuation 16622684
Provisional Application 62519213 · Jun 14, 2017
Related Publication 20250010262A1 · Jan 9, 2025
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