skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery

Abstract

The present invention provides a relatively compact self-powered, tunable waste conversion system and apparatus which has the advantage of highly robust operation which provides complete or substantially complete conversion of a wide range of waste streams into useful gas and a stable, nonleachable solid product at a single location with greatly reduced air pollution to meet air quality standards. The system provides the capability for highly efficient conversion of waste into high quality combustible gas and for high efficiency conversion of the gas into electricity by utilizing a high efficiency gas turbine or by an internal combustion engine. The solid product can be suitable for various commercial applications. Alternatively, the solid product stream, which is a safe, stable material, may be disposed of without special considerations as hazardous material. In the preferred embodiment of the invention, the arc plasma furnace and joule heated melter are formed as a fully integrated unit with a common melt pool having circuit arrangements for the simultaneous independently controllable operation of both the arc plasma and the joule heated portions of the unit without interference with one another. The preferred configuration of this embodiment of the invention utilizes two arc plasma electrodes with an elongatedmore » chamber for the molten pool such that the molten pool is capable of providing conducting paths between electrodes. The apparatus may additionally be employed with reduced or without further use of the gases generated by the conversion process. The apparatus may be employed as a self-powered or net electricity producing unit where use of an auxiliary fuel provides the required level of electricity production.« less

Inventors:
 [1];  [2];  [3]
  1. (Newtown Square, PA)
  2. (Chestnuthill, MA)
  3. (Kennewick, WA)
Issue Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
871801
Patent Number(s):
5798497
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
tunable; self-powered; integrated; plasma-melter; vitrification; waste; treatment; resource; recovery; provides; relatively; compact; conversion; apparatus; advantage; highly; robust; operation; complete; substantially; wide; range; streams; useful; gas; stable; nonleachable; solid; product; single; location; greatly; reduced; air; pollution; meet; quality; standards; capability; efficient; combustible; efficiency; electricity; utilizing; turbine; internal; combustion; engine; suitable; various; commercial; applications; alternatively; stream; safe; material; disposed; special; considerations; hazardous; preferred; embodiment; plasma; furnace; joule; heated; melter; formed; unit; common; melt; pool; circuit; arrangements; simultaneous; independently; controllable; portions; interference; configuration; utilizes; electrodes; elongated; chamber; molten; capable; providing; conducting; paths; additionally; employed; gases; generated; process; net; producing; auxiliary; fuel; required; level; production; elongated chamber; joule heated; gases generated; hazardous material; conversion process; product stream; waste stream; internal combustion; preferred embodiment; gas turbine; wide range; combustion engine; highly efficient; combustible gas; waste streams; solid product; greatly reduced; substantially complete; waste treatment; molten pool; stable material; plasma electrodes; preferred configuration; plasma furnace; melt pool; circuit arrangement; air quality; complete conversion; commercial applications; single location; efficient conversion; fuel provides; heated portions; air pollution; auxiliary fuel; plasma electrode; relatively compact; robust operation; efficiency gas; greatly reduce; waste conversion; tunable waste; net electric; highly robust; plasma-melter vitrification; /219/110/373/

Citation Formats

Titus, Charles H., Cohn, Daniel R., and Surma, Jeffrey E. Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery. United States: N. p., 1998. Web.
Titus, Charles H., Cohn, Daniel R., & Surma, Jeffrey E. Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery. United States.
Titus, Charles H., Cohn, Daniel R., and Surma, Jeffrey E. Thu . "Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery". United States. https://www.osti.gov/servlets/purl/871801.
@article{osti_871801,
title = {Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery},
author = {Titus, Charles H. and Cohn, Daniel R. and Surma, Jeffrey E.},
abstractNote = {The present invention provides a relatively compact self-powered, tunable waste conversion system and apparatus which has the advantage of highly robust operation which provides complete or substantially complete conversion of a wide range of waste streams into useful gas and a stable, nonleachable solid product at a single location with greatly reduced air pollution to meet air quality standards. The system provides the capability for highly efficient conversion of waste into high quality combustible gas and for high efficiency conversion of the gas into electricity by utilizing a high efficiency gas turbine or by an internal combustion engine. The solid product can be suitable for various commercial applications. Alternatively, the solid product stream, which is a safe, stable material, may be disposed of without special considerations as hazardous material. In the preferred embodiment of the invention, the arc plasma furnace and joule heated melter are formed as a fully integrated unit with a common melt pool having circuit arrangements for the simultaneous independently controllable operation of both the arc plasma and the joule heated portions of the unit without interference with one another. The preferred configuration of this embodiment of the invention utilizes two arc plasma electrodes with an elongated chamber for the molten pool such that the molten pool is capable of providing conducting paths between electrodes. The apparatus may additionally be employed with reduced or without further use of the gases generated by the conversion process. The apparatus may be employed as a self-powered or net electricity producing unit where use of an auxiliary fuel provides the required level of electricity production.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

Save / Share: