US3779182A - Refuse converting method and apparatus utilizing long arc column forming plasma torches - Google Patents

Refuse converting method and apparatus utilizing long arc column forming plasma torches Download PDF

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US3779182A
US3779182A US3779182DA US3779182A US 3779182 A US3779182 A US 3779182A US 3779182D A US3779182D A US 3779182DA US 3779182 A US3779182 A US 3779182A
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refuse
apparatus
long
plasma
column
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S Camacho
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PLASMA ENERGY Corp A CORP OF
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/085High-temperature heating means, e.g. plasma, for partly melting the waste
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/005Melting in furnaces; Furnaces so far as specially adapted for glass manufacture of glass-forming waste materials
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • C03B5/025Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by arc discharge or plasma heating
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B19/00Heating of coke ovens by electrical means
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/20Supplementary heating arrangements using electric energy
    • F23G2204/201Plasma
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems with climate change mitigation effect characterised by the origin of the energy

Abstract

A method and apparatus are disclosed which are based on utilizing a plural number of long arc column forming plasma torches in combination with a refractory lined furnace chamber to continuously pyrolyze household and industrial refuse material fed into the chamber and convert the same to usable materials and useful forms of energy.

Description

O Umted States Patent [1 1 [111 3,779,182

Camacho 1 Dec. 18, 1973 REFUSE CONVERTING METHOD AND 3,173,388 3/1965 Menrath et a1 110/8 E APPARATUS UTILIZING LONG ARC 3,503,347 3/1970 Marr, Jr et al..... 110/8 R 3,404,078 10/1968 Goldberger 219/121 P COLUMN FORMING PLASMA TORCHES 3.290.552 12/1966 Van Ornum 219/75 Salvador L. Camacho, ONeal Rd, Raleigh, NC. 27602 Filed: Aug. 24, 1972 Appl. No; 283,516

lnventor:

US. Cl 110/8 R, llO/l8 E, 110/8 E, 219/121, 219/75 Int. Cl. F23g 5/12 Field of Search 110/8 R, 8 E, 18 C, 1 10/8 C, 18 E; 219/12], 72-75, 383

References Cited UNITED STATES PATENTS 11/1970 Zanft 110/8 R Primary Examinerl(enneth W. Sprague Assistant Examiner-Henry C. Yuen Ar!0rne vB. B. Olive [57] ABSTRACT A method and apparatus are disclosed which are based on utilizing a plural number of long are column forming plasma torches in combination with a refractory lined furnace chamber to continuously pyrolyze household and industrial refuse material fed into the chamber and convert the same to usable materials and useful forms of energy.

10 Claims, 4 Drawing Figures REFUSE CONVERTING METHOD AND APPARATUS UTILIZING LONG ARC COLUMN FORMING PLASMA TORCI-IES CROSS-REFERENCE TO RELATED APPLICATIONS This invention is related to copending application, Serial No. 283,552, entilted Trough Hearth Construction And Method For Plasma Arc Furnace, which discloses an electric circuit for initiating and sustaining long arc plasma columns utilizing long are column forming plasma generators or torches of the type previously taught in U.S. Pat. No. 3,673,375, entitled Long Arc Column Plasma Generator and Method," issued to the same inventor.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to methods and apparatus for. reducing the physical weight and volume of refuse by'subjecting it to direct radiated. and convected heat from a long plasma arc column.

2. Description of the Prior Art 7 Pyrolysis (or destructive distillation) techniques were until very recently unrecognized 'as a means for. converting'municipal and industrial refuse into useful solid, liquid and gaseous products. In the past, conventional incinerators have been widely used to reduce refuse to ash through combustion. This process necessarily introduced fly. ash and many other types of airborne pollutants into the' atmosphere, due to the tremendous amounts of air utilized to effect combustion. vAs an alternate measure, sanitary landfills were developed to prevent air pollution. It is now recognized, however, that water leaching through such landfills may constitute a pollutant to ground water. It is a well-known and documented fact that refuse contains both combustible and non-combustible materials. The University of California, as a result of a study analyzing municipal refuse, has stated that the composition of municipal mixed" (unsegregated) refuse by weight is: cans, 9.8 percent, bottles and glass, 1 1.7 percent; metals (other than cans) 0.9 percent; other 77.6 percent. (See University of California Technical Bulletin No. 9, Sanitary Engineering Laboratory 1973 American Public Works Association, ."Municipal Refuse Disposal). It is also a well-known fact that the non-combustible portion which approximates 25 percentof the total weight of refuse is never appreciably reduced by either conventional incineration or landfill practices. Typically, these items are either shredded and buried at the landfill or are simply heaped near the incinerator.

In its I970 study entitled Conversion of Municipal and Industrial Refuse into Useful Materials by Pyrolysis, the United States Department of the Interior, Bureau of Mines, revealed the usefulness of pyrolyzing refuse and obtaining usable solid, liquid, and gaseous products. In this study, various samples of shredded municipal and industrial refuse with the metallic component largely removed were placed in a sealed retort and subjected to various levels of conducted heat to as much as 900 centigrade. Among the resulting products were solid residue (a source of charcoal briquettes and filter medium), propane, ethylene and methane gas, solid ammonium sulphate, tar, light oil (a soure of benzene and toluene) and liquor 95 percent water and the remainder formed of acids, ketones and aldehydes). In

terms of recoverable heat energy, the products of pyrolysis of refuse produced more than a sufficient Btu content to provide the heat for pyrolysis. (See W. S. Sanner et al.: Conversion of Municipal and Industrial Refuse into Useful Materials by Pyrolysis," Report of Investigations No. 7428, U.S. Department of the Interior, Bureau of Mines, August, 1970.)

Although the study conducted by the Bureau of Mines was instrumental in determining the potential value of converting refuse into usable products by pyrolysis, it did not suggest an efficient method and apparatus to do so. The system used was based upon a batch method of charging the retort and did not suggest a method and apparatus for more efficient continuousoperation. Furthermore, the solid residue contained bottle caps and bits of metal which required further separation before the solid residue could be utilized. In addition, the bulk of the metallic refuse component was required tobe segregated from the combustible or carbonaceous component prior to pyrolysis, and the combustible component required drying and shredding. for maximum efficiency of the process.

Additional prior art has suggested the use of conventional arc-forming electrodes. in an incinerator in U.S. Pat. No. 3,503,347 to intermittantly generate heat and thereby reduce the volume and weight of waste confined inside the incinerator. The above patent does not, however, teach the continuous operation of such an incinerator and does not teach a practical application of the evolved noxious gases. In general, the prior art has not suggested an efficient method and apparatus utilizing long arc column plasma torches for reducing substantially large amounts of unsegregated refuse to usable and valuable products from which energy may be readily obtained, while at the same time not polluting the environment. Furthermore, the prior art has not suggested such a method and apparatus which would be adapted for continuous rather than batch operation and capable of reducing the physical weight and volume of substantially large amounts of refuse while generating more energy than being consumed.

SUMMARY OF THE INVENTION This invention utilizes a plurality of long are column forming plasma torches in combination with a furnace chamber to thermally decompose unsegregated refuse into a gaseous and molten fluid state. Conveyor means are adapted to continuously supply refuse to the furnace chamber while smoke recycling means are adapted to prevent the gases being produced within the chamber from escaping. The furnace chamber is formed so as to have a somewhat bowl-shaped refractor lined interior hearth portion into which the long are forming plasma torches are directed. The hearth portion further includes a normally electrically disconnected graphite electrode but which may be appropriately connected into the electrical circuit when needed as an electrode. A lip formed along one edge of the refractory material provides a fluid outlet for the molten refuse. Pyrolysis of the refuse proceeds as long are plasmas are generated between the various torches residing in vertical wall portions of the furnace chamber, and molten metallic portions of the refuse collects in the hearth. The heat radiated and convected from the generated long are plasma columns is sufficient to reduce the remaining organic and non-combustible portion of the refuse to either a molten or gaseous state. Some of the evolved gases rise, preheat the refuse and are then reintroduced into the reduction process. In a preferred embodiment as the molten refuse reaches the level of the outlet lip it is oxidized by an incoming stream of gas, e.g., air. The oxidized molten refuse then enters a water bath which effectively provides a water seal and forms into a solid slag for later recovery by appropriate handling means. In some instances the slag may be maintained heated for purposes of molding the same. The gaseous products of the pyrolyzed refuse are simultaneously converted into saturated steam and other gases which may beneutralized or combusted by introduction of gases other than thementioned air. The hot gases may then drive appropriate energy conversion means such as a turbine generator and may be scrubbed or otherwise purified before being released to the atomosphere.

DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross sectional side view ofa typical refuse converting apparatus according to the invention.

FIG. 2 is a cutaway side view of a long arc column forming plasma torch employed in the instant invention generally shown in operating position inside a furnace chamber.

FIG. 3 is a top plan view of a refuse converting apparatus according to the invention.

FIG. 4 is a somewhat schematic diagram of an electrical circuit employed in the instant invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, as previously mentioned, the present invention is directed to an apparatus and method for continuously reducing by pyrolysis the physical weight and volume of municipal and industrial refuse material and converting it into energy, recoverable and useful products, utilizing long are column plasma generators, also known in the art as plasma torches. In a preferred embodiment, a complete refuse converting apparatus includes a furnace chamber a plurality of directionally stable long arc column forming plasma torches, generally designated 12, of the type disclosed in previously referred to US. Pat. No. 3,673,375, projecting through selected apertures 11 in vertical walls 14 of said furnace chamber 15. Also included is a somewhat concave refractory lined furnace hearth 17 having an integrally formed graphite electrode 18. Said refuse converting apparatus is also provided with a refuse hopper 20 including sealed refuse conveying means 21 and smoke recovery means 23, together being adapted to continuously feed refuse materials into said furnace chamber 15, while maintaining smoke and noxious gases within the chamber. The term refuse as used in this disclosure includes raw unsegregated refuse of a municipal or industrial nature or any mixture of both. By unsegregated" what is meant is that organic wastes are mixed with tin cans, bottles, paper, etc.

In accordance with the instant invention during operation, later described in greater detail, each plasma torch 12 is adapted to form a transferred long arc column of from 10 to inches with molten refuse material 19 a portion of which is metallic. Due to the intense heat being generated (1,000 to 2,000K), the nonmolten refuse (represented by dashed lines 22) is rapidly pyrolyzed into gaseous and molten fluid components in the absence, at this point, of appreciable combustion.

Hot gases and molten refuse evolved from the heat of the arc columns flow past a lip 16 formed in the concave refractory lined hearth 17 and into an oxidation chamber 30 which includes a gas inlet manifold 31 for oxygen or air which enables the evolved gases to be combusted into an oxidation dioxide and steam vapor. Depending on the nature of the refuse gases produced, gases other than air or oxygen may be introduced to combust or neutralize such refuse gases. Gas vent 32 receives the hot combusted vapor while a water bath 33 receives the molten residue and reduces it into a solidified slag material 38. The solidified slag aggregate is a highly salable item due to its silica and metallic content. A ridge of molded refractory material 34 adjacent lip 16 further enhances combustion and further degradation of the molten refuse by increasing the surface area over which the refuse is exposed to oxidation. The action of the water seal with the molten refuse serves to generate additional steam. A turbine generator 35, for example, may receive the hot gases entering gas vent 32 and be used to generate more electrical power than is consumed by the torches. Appropriate gas treatment means (not shown) receive and scrub the combusted gases until safe for release to atmosphere. Alternately, selected valuable gases, e.g., methane, may be separated by well-known means before being combusted by withdrawing a portion of the gas by appropriate means (not shown). The now solidified slag 38 may be handled by appropriate blade or other suitable conveyor means 60 and finally withdrawn from the water bath by additional handling apparatus 61 for later use.

Referring to FIG. 2, a long arc column plasma torch, according to the invention and as previously taught in US. Pat. No. 3,673,375, is defined as being an apparatus and an electrical conductor in the arc circuit and includes a cylindrical shaped electrode 36, a gas directing nozzle 37 axially aligned with, forwardly spaced and insulated from electrode 36, and appropriate gas and electrical supply means (not shown). As previously disclosed in copending application, Ser. No. 283,552 a pilot are indicated by dashed lines 45, may be struck between electrode 36 and nozzle 37 by introducing a current potential therebetween while simultaneously applying a vortical flow of gas directed outward through said nozzle 37. Such a pilot arc is readily trans ferred to a metallic material 46 also in the electrical circuit when such pilot are 45 becomes proximate said metallic matter (i.e., 4-7 inches) by appropriately advancing said torch 12 into a position proximate said metallic refuse 46. In the instant invention, it has been recognized that such a long are column plasma torch has particular effectiveness in a refuse converting apparatus since one component (typically 25 percent) of refuse is metal.

Referring now to FIG. 3, a first long arc column plasma torch 40, in preferred form, is adapted to extend through an aperture 47 in a portion of a rear wall 51 of said furnace chamber 15 while second 41 and third 42 long are column plasma torches are adapted to extend through apertures 48, 49 in adjacent corner wall portions 52 of said furnance chamber. As is perhaps apparent, many other torch mounting configurations will appear to those skilled in the art, and the particular mounting details described herein are for purposes of example only. A sleeve or collar 53 (FIG. 2) which may be stainless steel, for example, lining each respective aperture 47, 48, 49 is adapted to enable horizontal and vertical angular, as well as axial, movement of each plasma torch within its respective mounting position while preventing heat and noxious gases from escaping through apertures 47, 48, 49. Remotely controllable torch positioning means 24 (FIG. 1) are provided to enable accurate positioning of the plasma torches.

Referring now to FIG. 4, 'as previously mentioned, each long arccolumn forming plasma torch utilized in the present invention (shown in cross section) includes a cylindrical shaped internal electrode 36 and a gas directing nozzle 37 axially aligned with, forwardly spaced and insulated from electrode and appropriate gas, water and electrical supply means (not shown). while the last mentioned gas and water supply means areconsidered well-establishedin the art requiring no further elaboration herein, a better understanding may be gained of the invention by a discussion'of its advantageous use of power in starting and maintaining the various long arc plasma columns. Utilizing a three phase A. C. wye 55 having a floating neutral 56 to conveniently supply power to three long arc column forming plasma torches 12, a given torch internal electrode 36 is connected to an individual current phase. It is apparent that if more than three torches are employed, a greater number of phases may be utilized. Each torch nozzle 37 is connected to an adjacent phase 58 via an appropriate .choke 59. In this manner, apilot arc 45 may be struck between the nozzle 37 and internal electrode 36 of each torch without introducing a consumable electrical conductor by applying the phase to adjacent phase voltage differential, caused byvchoke 59, across internal electrode 36 and nozzle 37 and by simultaneously introducing a gas vortical flow through nozzle 37. The current passing through the pilot arc 45- is substantially smaller than that of the main arc 13 (see FIGS. 1 and 2) which is subsequently adapted to be transferred to the metal scrap to be melted. Simultaneous transferral of at least two pilot arcs 45 to the metallic refuse component establishes at least two main transferred arcs (not shown) and completes a phase 57 to adjacent phase 58 loop whereby the full available current is now utilized.

Since the nature and physical arrangement of the refuse with respect to the torches willvary widely during operation it is contemplated that one or more torches may become inoperable. For example, a falling porcelain coated refrigerator or a sudden deluge of rotten vegetables may stifle an are. In this event, any single torch may be operated phase to neutral and a new plasma column path may be established by restarting with a pilot arc. Thus, when contact with an electrically conductive melt or an electrically conductive unmelted refuse is lost to a particular plasma column connection may be made to graphite electrode 18 to a ground or neutral 79 (FIG. 1) by a suitable manual or remotely operated contactor 78. Once a molten metallic pool is reestablished the other torches may be again utilized.

Once a molten pool 19 of metallic refuse has been formed and preferably all long arc plasma columns 13 have made electrical contact with said molten pool, it is possible to then continuously dump unsegregated refuse 25 into the furnace chamber 15. The small molten metallic component of the unsegregated refuse will then be sufficient to sustain electrical connection between the three plasma arcs. Furthermore, the above described method of operating long are column plasma torches in electrical connection with a molten pool of metallic refuse 19 assures continuous operation of the furnace since the metal having a higher specific gravity than the bulk of other refuse will tend to remain. in the concave refractory lined hearth 17 while the continuously melting mixed metallic-non-metallic refuse will tend to flow out of the concave furnace hearth. 17, pass the outlet lip 16 through oxidation chamber 30and into water bath 33. It is also a recognized. advantage of the particular embodiment shown to utilize the hot gases being evolved in the furnace chamber to pre-heat refuse materials 25 entering the furnace thereby promoting even greater efficiences. Based on the foregoing invention operation parameters, the specific furnace design and construction is deemed well within the established electric arc furnace art and therefore requires no further elaboration here. While specific refuse conveying means, material handling and energy recovery means have been suggested, these aspects of the instant invention are also well-known in the established art. A- complete but not definitive method of converting refuse into usable energy recoverable products based on the described invention may include:

a. initially charging a furnace built in accordance with the invention with refuse having a high metallic content;

b. initiating and sustaining a plurality of long are plasma columns and reducing the largely metallic refuse to a molten pool;

c. conveying refuse of any class or mixture into the furnace;

d. reducing by heat pyrolysis the physical weight and volume of said conveyed refuse into molten fluid and gaseous products;

e. converting the evolved molten fluid and gaseous products to usable energy;

f. treating and purifying the final products before returning them to the atmosphere.

On the basis of the foregoing description, it is apparent that the instant invention provides an efficient and environmentally safe alternative to landfill, and combustive incineration practices of refuse disposal while at the same time providing a source for energy through the use of long are column forming plasma torches. According to the invention, it is now possible to continuously decrease the physical weight and volume of raw unsegregated refuse while converting the evolved products to useful materials and useful energy.

What is claimed is:

1. An apparatus for reducing by pyrolysis raw unsegregated refuse comprising:

a. a furnace chamber;

b. a refractory lined hearth in said furnace chamber;

c. conveyor means adapted to introduce raw unsegregated refuse, at least a portion of which is metallic, into said furnace chamber; and

d. long arc column forming plasma generator means mounted in said chamber and adapted to initiate and sustain at least one long arc column plasma having a portion thereof in electrical contact with said refuse and being adapted to reduce said refuse to gaseous and molten fluid products by utilization of the column heat.

2. The apparatus of claim 1 including gas supply means adapted to contact and chemically react with said gaseous and molten fluid products.

3. The apparatus of claim 2 including energy conversion means adapted to recover energy from said products.

4. The apparatus of claim 2 wherein said gas supply means comprises an oxidizing supply.

5. The apparatus of claim 1 wherein said generator means comprises a plurality of peripherally spacedgenerators and including electrical circuit means adapted to initiate a pilot arc in each said generator and enabling a main long are column to be transferred between at least two said generators and said refuse.

6. The apparatus of claim 1 including groundable electrode means included in said hearth and being adapted to enable a long are plasma column to be generated between at least one said generator and said grounded electrode.

7. A method for reducing by pyrolysis a volume of raw unsegregated refuse comprising:

a. initially charging a furnace chamber with refuse materials of which a substantial portion is metallic;

b. providing long plasma arc column generation means extending through at least one wall portionof said furnace chamber;

c. establishing and maintaining at least one long plasma arc column between said generation means and said refuse thereby reducing by heat at least said metallic refuse portion to amolten state;

d. conveying additional raw unsegregated refuse into said furnace chamber; and

e. pyrolyzing all of said raw unsegregated refuse by heat from said long plasma arc column into molten and gaseous products.

8. The method of claim 7 including chemically reacting a selected gas with said molten and gaseous products.

9. The method of claim 8 wherein said gas comprises an oxidizing gas.

10. The method of claim 7 including the step of recovering energy from said products.

5 3 i UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3, 779,13?- Dated December 18, 1973 InventorGQ Salvador L. Camacho It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 1, line 66, a parenthesis mark should be inserted before "95 percent".

Column 4, line 8, "an oxidation" should be deleted before "dioside" and -carbon should be inserted.

Signed and sealed this 17th day of December 1974.

(SEAL) Attest':

McCOY M. GIBSON JR. C. MARSHALL DANN Attesting Officer Commissioner of Patents

Claims (10)

1. An apparatus for reducing by pyrolysis raw unsegregated refuse comprising: a. a furnace chamber; b. a refractory lined hearth in said furnace chamber; c. conveyor means adapted to introduce raw unsegregated refuse, at least a portion of which is metallic, into said furnace chamber; and d. long arc column forming plasma generator means mounted in said chamber and adapted to initiate and sustain at least one long arc column plasma having a portion thereof in electrical contact with said refuse and being adapted to reduce said refuse to gaseous and molten fluid products by utilization of the column heat.
2. The apparatus of claim 1 including gas supply means adapted to contact and chemically react with said gaseous and molten fluid products.
3. The apparatus of claim 2 including energy conversion means adapted to recover energy from said products.
4. The apparatus of claim 2 wherein said gas supply means comprises an oxidizing supply.
5. The apparatus of claim 1 wherein said generator means comprises a plurality of peripherally spaced generators and including electrical circuit means adapted to initiate a pilot arc in each said generator and enabling a main long arc column to be transferred between at least two said generators and said refuse.
6. The apparatus of claim 1 including groundable electrode means included in said hearth and being adapted to enable a long arc plasma column to be generated between at least one said generator and said grounded electrode.
7. A method for reducing by pyrolysis a volume of raw unsegregated refuse comprising: a. initially charging a furnace chamber with refuse materials of which a substantial portion is metallic; b. providing long plasma arc column generation means extending through at least one wall portion of said furnace chamber; c. establishing and maintaining at least one long plasma arc column between said generation means and said refuse thereby reducing by heat at least said metallic refuse portion to a molten state; d. conveying additional raw unsegregated refuse into said furnace chamber; and e. pyrolyzing all of said raw unsegregated refuse by heat from said long plasma arc column into molten and gaseous products.
8. The method of claim 7 including chemically reacting a selected gas with said molten and gaseous products.
9. The method of claim 8 wherein said gas comprises an oxidizing gas.
10. The method of claim 7 including the step of recovering energy from said products.
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Cited By (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50130262A (en) * 1974-04-03 1975-10-15
US3944412A (en) * 1974-09-18 1976-03-16 Hsin Liu Method for recovering metals
US4141694A (en) * 1977-08-26 1979-02-27 Technology Application Services Corporation Apparatus for the gasification of carbonaceous matter by plasma arc pyrolysis
US4181504A (en) * 1975-12-30 1980-01-01 Technology Application Services Corp. Method for the gasification of carbonaceous matter by plasma arc pyrolysis
DE3002695A1 (en) * 1979-01-27 1980-08-07 Daido Steel Co Ltd A method for filling a storage container capable with solid radioactive waste
DE3002696A1 (en) * 1979-01-27 1980-08-07 Daido Steel Co Ltd Apparatus for comminuting radioactive waste
US4217479A (en) * 1977-04-29 1980-08-12 Swiss Aluminium Ltd. High temperature reactor
US4220843A (en) * 1977-04-29 1980-09-02 Swiss Aluminium Ltd. Process for melting material
FR2520091A1 (en) * 1982-01-18 1983-07-22 Skf Steel Eng Ab Method and installation for waste conversion into stable end products
US4466807A (en) * 1981-03-10 1984-08-21 Skf Steel Engineering Aktiebolag Manufacture of a gas containing monoxide and hydrogen gas from a starting material containing carbon and/or hydrocarbon
FR2570805A1 (en) * 1984-09-21 1986-03-28 Skf Steel Eng Ab Method to destroy hazardous waste
FR2574902A1 (en) * 1984-12-17 1986-06-20 Tissandier Paul Improvements made to incineration installations for combustible or non-combustible products
US4626654A (en) * 1979-12-14 1986-12-02 Veb Edelstahlwerk "8 Mai 1945" Freital Metallurgical plasma melting process
FR2582542A1 (en) * 1985-05-31 1986-12-05 Cle Groupe Technip Process for treating a fluidised bed in a reactor and plant for making use of this process
US4734551A (en) * 1986-01-10 1988-03-29 Plasma Energy Corporation Method and apparatus for heating molten steel utilizing a plasma arc torch
US4770109A (en) * 1987-05-04 1988-09-13 Retech, Inc. Apparatus and method for high temperature disposal of hazardous waste materials
EP0290974A1 (en) * 1987-05-14 1988-11-17 Fried. Krupp Gesellschaft mit beschränkter Haftung Thermal treatment of solid scrap containing heavy metal compounds and/or toxic hydrocarbons
US4861001A (en) * 1987-07-21 1989-08-29 Retech, Inc. Melting retort and method of melting materials
US4918282A (en) * 1986-01-10 1990-04-17 Plasma Energy Corporation Method and apparatus for heating molten steel utilizing a plasma arc torch
US5005494A (en) * 1987-05-04 1991-04-09 Retech, Inc. Apparatus and method for high temperature disposal of hazardous waste materials
US5143000A (en) * 1991-05-13 1992-09-01 Plasma Energy Corporation Refuse converting apparatus using a plasma torch
US5224118A (en) * 1992-07-27 1993-06-29 Murry Vance On-site, biohazardous waste disposal system
EP0572769A2 (en) * 1992-05-12 1993-12-08 Holderbank Financiere Glarus Ag Process for the conversion of waste incineration residues to a non-polluting product and useful for constructional purposes
WO1994003029A1 (en) * 1992-07-27 1994-02-03 Vance I D S, Inc. On-site, biohazardous waste disposal system
EP0595968A1 (en) * 1991-08-02 1994-05-11 BURGESS, Donald A. Plasma disintegration for waste material
US5408494A (en) * 1993-07-28 1995-04-18 Retech, Inc. Material melting and incinerating reactor with improved cooling and electrical conduction
US5451738A (en) * 1991-01-24 1995-09-19 Itex Enterprises Services, Inc. Plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gasses
US5534659A (en) * 1994-04-18 1996-07-09 Plasma Energy Applied Technology Incorporated Apparatus and method for treating hazardous waste
WO1996024441A2 (en) * 1995-02-02 1996-08-15 Battelle Memorial Institute Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery
US5666891A (en) * 1995-02-02 1997-09-16 Battelle Memorial Institute ARC plasma-melter electro conversion system for waste treatment and resource recovery
US5675056A (en) * 1995-03-09 1997-10-07 Vance; Murray A. Incandescent waste disposal system and method
EP0959049A1 (en) * 1998-05-22 1999-11-24 DBI DEUTSCHES BRENNSTOFFINSTITUT ROHSTOFF & ANLAGENTECHNIK GmbH Method and apparatus for thermal transforming of waste
US6018471A (en) * 1995-02-02 2000-01-25 Integrated Environmental Technologies Methods and apparatus for treating waste
US6066825A (en) * 1995-02-02 2000-05-23 Integrated Environmental Technologies, Llc Methods and apparatus for low NOx emissions during the production of electricity from waste treatment systems
US6514469B1 (en) 2000-09-22 2003-02-04 Yuji Kado Ruggedized methods and systems for processing hazardous waste
US20030047147A1 (en) * 2001-09-10 2003-03-13 Daniel Michael J. Plasmatron-internal combustion engine system having an independent electrical power source
US6551563B1 (en) 2000-09-22 2003-04-22 Vanguard Research, Inc. Methods and systems for safely processing hazardous waste
US20030143445A1 (en) * 2002-01-25 2003-07-31 Daniel Michael J. Apparatus and method for operating a fuel reformer to provide reformate gas to both a fuel cell and an emission abatement device
US20030140622A1 (en) * 2002-01-25 2003-07-31 William Taylor Combination emission abatement assembly and method of operating the same
US20030143442A1 (en) * 2002-01-25 2003-07-31 Daniel Michael J. Apparatus and method for operating a fuel reformer to generate multiple reformate gases
US20030196611A1 (en) * 2002-04-23 2003-10-23 Daniel Michael J. Plasmatron having an air jacket and method for operating the same
US20030200742A1 (en) * 2002-04-24 2003-10-30 Smaling Rudolf M. Apparatus and method for regenerating a particulate filter of an exhaust system of an internal combustion engine
US20040020191A1 (en) * 2002-08-05 2004-02-05 Kramer Dennis A. Method and apparatus for advancing air into a fuel reformer by use of a turbocharger
US20040020447A1 (en) * 2002-08-05 2004-02-05 William Taylor Method and apparatus for advancing air into a fuel reformer by use of an engine vacuum
US20040020188A1 (en) * 2002-08-05 2004-02-05 Kramer Dennis A. Method and apparatus for generating pressurized air by use of reformate gas from a fuel reformer
US20040028964A1 (en) * 2002-08-12 2004-02-12 Smaling Rudolf M. Apparatus and method for controlling the oxygen-to-carbon ratio of a fuel reformer
US6702991B1 (en) 2002-11-12 2004-03-09 Arvin Technologies, Inc. Apparatus and method for reducing power consumption of a plasma fuel reformer
US20040052693A1 (en) * 2002-09-18 2004-03-18 Crane Samuel N. Apparatus and method for removing NOx from the exhaust gas of an internal combustion engine
US20040050035A1 (en) * 2002-09-18 2004-03-18 Smaling Rudolf M. Method and apparatus for purging SOx from NOx trap
US20040050345A1 (en) * 2002-09-17 2004-03-18 Bauer Shawn D. Fuel reformer control system and method
US6715452B1 (en) 2002-11-13 2004-04-06 Arvin Technologies, Inc. Method and apparatus for shutting down a fuel reformer
US20040107987A1 (en) * 2002-12-06 2004-06-10 Ciray Mehmet S. Thermoelectric device for use with fuel reformer and associated method
US20040139729A1 (en) * 2003-01-16 2004-07-22 William Taylor Method and apparatus for removing NOx and soot from engine exhaust gas
US20040139730A1 (en) * 2003-01-16 2004-07-22 William Taylor Method and apparatus for directing exhaust gas and reductant fluid in an emission abatement system
US20040144030A1 (en) * 2003-01-23 2004-07-29 Smaling Rudolf M. Torch ignited partial oxidation fuel reformer and method of operating the same
US20040159289A1 (en) * 2003-02-13 2004-08-19 William Taylor Method and apparatus for controlling a fuel reformer by use of existing vehicle control signals
WO2004072547A1 (en) * 2003-02-12 2004-08-26 Plasco Energy Group Inc. Multiple plasma generator hazardous waste processing system
US20040216378A1 (en) * 2003-04-29 2004-11-04 Smaling Rudolf M Plasma fuel reformer having a shaped catalytic substrate positioned in the reaction chamber thereof and method for operating the same
US20050070751A1 (en) * 2003-09-27 2005-03-31 Capote Jose A Method and apparatus for treating liquid waste
US20050072140A1 (en) * 2002-01-25 2005-04-07 William Taylor Apparatus and method for operating a fuel reformer to regenerate a DPNR device
US20050087436A1 (en) * 2003-10-24 2005-04-28 Smaling Rudolf M. Apparatus and method for operating a fuel reformer so as to purge soot therefrom
US20050086865A1 (en) * 2003-10-24 2005-04-28 Crane Samuel N.Jr. Method and apparatus for trapping and purging soot from a fuel reformer
EP1533567A1 (en) * 2003-11-18 2005-05-25 Zwilag Zwischenlager Würenlingen AG Furnace with rotating hearth for dangerous wastes
US6971323B2 (en) 2004-03-19 2005-12-06 Peat International, Inc. Method and apparatus for treating waste
US20060283176A1 (en) * 2005-06-17 2006-12-21 Arvinmeritor Emissions Technologies Gmbh Method and apparatus for regenerating a NOx trap and a particulate trap
US20060287802A1 (en) * 2005-06-17 2006-12-21 ArvinMeritor Emissions Method and apparatus for determining local emissions loading of emissions trap
US20070012231A1 (en) * 2005-06-23 2007-01-18 Georgia Tech Research Corporation Systems and methods for integrated plasma processing of waste
US20070095053A1 (en) * 2005-10-31 2007-05-03 Arvin Technologies, Inc. Method and apparatus for emissions trap regeneration
US20070163387A1 (en) * 2006-01-17 2007-07-19 Rmi Titanium Company Method and apparatus for preheating and feeding material
US20070199485A1 (en) * 2006-02-28 2007-08-30 Capote Jose A Method and apparatus of treating waste
US20080147241A1 (en) * 2006-05-05 2008-06-19 Placso Energy Group Inc. Control System for the Conversion of Carbonaceous Feedstock into Gas
US20080202028A1 (en) * 2005-06-03 2008-08-28 Plasco Energy Group Inc. System For the Conversion of Carbonaceous Fbedstocks to a Gas of a Specified Composition
US20080209807A1 (en) * 2006-05-05 2008-09-04 Andreas Tsangaris Low Temperature Gasification Facility with a Horizontally Oriented Gasifier
US20080222956A1 (en) * 2005-06-03 2008-09-18 Plasco Energy Group Inc. System for the Conversion of Coal to a Gas of Specified Composition
US20080277265A1 (en) * 2007-05-11 2008-11-13 Plasco Energy Group, Inc. Gas reformulation system comprising means to optimize the effectiveness of gas conversion
US20090050561A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater
US20090071382A1 (en) * 2006-03-10 2009-03-19 Howard Morgan Clarke Waste treatment apparatus and method
US20090200180A1 (en) * 2008-02-08 2009-08-13 Capote Jose A Method and apparatus of treating waste
US20100154304A1 (en) * 2007-07-17 2010-06-24 Plasco Energy Group Inc. Gasifier comprising one or more fluid conduits
US7776280B2 (en) 2005-05-10 2010-08-17 Emcon Technologies Llc Method and apparatus for selective catalytic reduction of NOx
US8435315B2 (en) 2006-05-05 2013-05-07 Plasco Energy Group Inc. Horizontally-oriented gasifier with lateral transfer system
US8671855B2 (en) 2009-07-06 2014-03-18 Peat International, Inc. Apparatus for treating waste
US8690975B2 (en) 2007-02-27 2014-04-08 Plasco Energy Group Inc. Gasification system with processed feedstock/char conversion and gas reformulation
US9222026B2 (en) 2010-09-11 2015-12-29 Alter Nrg Corp. Plasma gasification reactors with modified carbon beds and reduced coke requirements
US9321640B2 (en) 2010-10-29 2016-04-26 Plasco Energy Group Inc. Gasification system with processed feedstock/char conversion and gas reformulation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5199873A (en) * 1975-02-28 1976-09-03 Nippon Kokan Kk Jinkaikanryuhoho
JPS5286976A (en) * 1976-01-14 1977-07-20 Daido Steel Co Ltd Method of burning and melting sludge
EP2021894A4 (en) 2006-05-05 2010-10-13 Plascoenergy Ip Holdings Slb A gas homogenization system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173388A (en) * 1962-10-08 1965-03-16 Joseph E Menrath Carbon arc incinerator
US3290552A (en) * 1964-04-21 1966-12-06 Giannini Scient Corp Apparatus for generating high-intensity light with high temperature particulate material
US3404078A (en) * 1964-08-13 1968-10-01 Battelle Development Corp Method of generating a plasma arc with a fluidized bed as one electrode
US3503347A (en) * 1967-05-26 1970-03-31 Electrode Incinerators Inc Method and electrical arc apparatus for incinerating trash and garbage
US3537410A (en) * 1968-09-20 1970-11-03 Hagan Ind Inc Incinerator with residue reduction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173388A (en) * 1962-10-08 1965-03-16 Joseph E Menrath Carbon arc incinerator
US3290552A (en) * 1964-04-21 1966-12-06 Giannini Scient Corp Apparatus for generating high-intensity light with high temperature particulate material
US3404078A (en) * 1964-08-13 1968-10-01 Battelle Development Corp Method of generating a plasma arc with a fluidized bed as one electrode
US3503347A (en) * 1967-05-26 1970-03-31 Electrode Incinerators Inc Method and electrical arc apparatus for incinerating trash and garbage
US3537410A (en) * 1968-09-20 1970-11-03 Hagan Ind Inc Incinerator with residue reduction

Cited By (125)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50130262A (en) * 1974-04-03 1975-10-15
US3944412A (en) * 1974-09-18 1976-03-16 Hsin Liu Method for recovering metals
US4181504A (en) * 1975-12-30 1980-01-01 Technology Application Services Corp. Method for the gasification of carbonaceous matter by plasma arc pyrolysis
US4217479A (en) * 1977-04-29 1980-08-12 Swiss Aluminium Ltd. High temperature reactor
US4220843A (en) * 1977-04-29 1980-09-02 Swiss Aluminium Ltd. Process for melting material
US4141694A (en) * 1977-08-26 1979-02-27 Technology Application Services Corporation Apparatus for the gasification of carbonaceous matter by plasma arc pyrolysis
DE3002696A1 (en) * 1979-01-27 1980-08-07 Daido Steel Co Ltd Apparatus for comminuting radioactive waste
DE3002695A1 (en) * 1979-01-27 1980-08-07 Daido Steel Co Ltd A method for filling a storage container capable with solid radioactive waste
US4326842A (en) * 1979-01-27 1982-04-27 Daidotokushuko Kabushikikaisha Device for the pulverization of radioactive wastes
US4432942A (en) * 1979-01-27 1984-02-21 Toshio Adachi Apparatus for filling a container with radioactive solid wastes
US4626654A (en) * 1979-12-14 1986-12-02 Veb Edelstahlwerk "8 Mai 1945" Freital Metallurgical plasma melting process
US4466807A (en) * 1981-03-10 1984-08-21 Skf Steel Engineering Aktiebolag Manufacture of a gas containing monoxide and hydrogen gas from a starting material containing carbon and/or hydrocarbon
FR2520091A1 (en) * 1982-01-18 1983-07-22 Skf Steel Eng Ab Method and installation for waste conversion into stable end products
FR2570805A1 (en) * 1984-09-21 1986-03-28 Skf Steel Eng Ab Method to destroy hazardous waste
FR2574902A1 (en) * 1984-12-17 1986-06-20 Tissandier Paul Improvements made to incineration installations for combustible or non-combustible products
FR2582542A1 (en) * 1985-05-31 1986-12-05 Cle Groupe Technip Process for treating a fluidised bed in a reactor and plant for making use of this process
US4918282A (en) * 1986-01-10 1990-04-17 Plasma Energy Corporation Method and apparatus for heating molten steel utilizing a plasma arc torch
US4734551A (en) * 1986-01-10 1988-03-29 Plasma Energy Corporation Method and apparatus for heating molten steel utilizing a plasma arc torch
US4770109A (en) * 1987-05-04 1988-09-13 Retech, Inc. Apparatus and method for high temperature disposal of hazardous waste materials
US5005494A (en) * 1987-05-04 1991-04-09 Retech, Inc. Apparatus and method for high temperature disposal of hazardous waste materials
EP0290974A1 (en) * 1987-05-14 1988-11-17 Fried. Krupp Gesellschaft mit beschränkter Haftung Thermal treatment of solid scrap containing heavy metal compounds and/or toxic hydrocarbons
US4861001A (en) * 1987-07-21 1989-08-29 Retech, Inc. Melting retort and method of melting materials
US5451738A (en) * 1991-01-24 1995-09-19 Itex Enterprises Services, Inc. Plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gasses
US5143000A (en) * 1991-05-13 1992-09-01 Plasma Energy Corporation Refuse converting apparatus using a plasma torch
EP0595968A1 (en) * 1991-08-02 1994-05-11 BURGESS, Donald A. Plasma disintegration for waste material
EP0595968A4 (en) * 1991-08-02 1996-01-17 Donald A Burgess Plasma disintegration for waste material
EP0572769A2 (en) * 1992-05-12 1993-12-08 Holderbank Financiere Glarus Ag Process for the conversion of waste incineration residues to a non-polluting product and useful for constructional purposes
US5405429A (en) * 1992-05-12 1995-04-11 Holderbank Financiere Glarus, Ag Method for treatment and conversion of refuse incineration residues into environmentally acceptable and reusable material, especially for construction purposes
EP0572769A3 (en) * 1992-05-12 1995-07-05 Holderbank Financ Glarus Process for the conversion of waste incineration residues to a non-polluting product and useful for constructional purposes.
US5333146A (en) * 1992-07-27 1994-07-26 Murry Vance On-site, biohazardous waste disposal system
US5224118A (en) * 1992-07-27 1993-06-29 Murry Vance On-site, biohazardous waste disposal system
WO1994003029A1 (en) * 1992-07-27 1994-02-03 Vance I D S, Inc. On-site, biohazardous waste disposal system
US5408494A (en) * 1993-07-28 1995-04-18 Retech, Inc. Material melting and incinerating reactor with improved cooling and electrical conduction
US5534659A (en) * 1994-04-18 1996-07-09 Plasma Energy Applied Technology Incorporated Apparatus and method for treating hazardous waste
US6127645A (en) * 1995-02-02 2000-10-03 Battelle Memorial Institute Tunable, self-powered arc plasma-melter electro conversion system for waste treatment and resource recovery
WO1996024441A3 (en) * 1995-02-02 1996-09-26 Battelle Memorial Institute Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery
US5666891A (en) * 1995-02-02 1997-09-16 Battelle Memorial Institute ARC plasma-melter electro conversion system for waste treatment and resource recovery
US6630113B1 (en) 1995-02-02 2003-10-07 Integrated Environmental Technologies, Llc Methods and apparatus for treating waste
US5756957A (en) * 1995-02-02 1998-05-26 Integrated Environmental Technologies, Llc Tunable molten oxide pool assisted plasma-melter vitrification systems
US5798497A (en) * 1995-02-02 1998-08-25 Battelle Memorial Institute Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery
US5811752A (en) * 1995-02-02 1998-09-22 Integrated Environmental Technologies, Llc Enhanced tunable plasma-melter vitrification systems
WO1996024441A2 (en) * 1995-02-02 1996-08-15 Battelle Memorial Institute Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery
US5908564A (en) * 1995-02-02 1999-06-01 Battelle Memorial Institute Tunable, self-powered arc plasma-melter electro conversion system for waste treatment and resource recovery
US6160238A (en) * 1995-02-02 2000-12-12 Integrated Environmental Technologies, Inc. Tunable molten oxide pool assisted plasma-melter vitrification systems
US6018471A (en) * 1995-02-02 2000-01-25 Integrated Environmental Technologies Methods and apparatus for treating waste
US6037560A (en) * 1995-02-02 2000-03-14 Integrated Environmental Technologies, Llc Enhanced tunable plasma-melter vitrification systems
US6066825A (en) * 1995-02-02 2000-05-23 Integrated Environmental Technologies, Llc Methods and apparatus for low NOx emissions during the production of electricity from waste treatment systems
US6215678B1 (en) 1995-02-02 2001-04-10 Integrated Environmental Technologies, Llc Arc plasma-joule heated melter system for waste treatment and resource recovery
US5833933A (en) * 1995-03-09 1998-11-10 Vance; Murry A. Incandescent waste disposal system and method
US5675056A (en) * 1995-03-09 1997-10-07 Vance; Murray A. Incandescent waste disposal system and method
EP0959049A1 (en) * 1998-05-22 1999-11-24 DBI DEUTSCHES BRENNSTOFFINSTITUT ROHSTOFF & ANLAGENTECHNIK GmbH Method and apparatus for thermal transforming of waste
US6514469B1 (en) 2000-09-22 2003-02-04 Yuji Kado Ruggedized methods and systems for processing hazardous waste
US6551563B1 (en) 2000-09-22 2003-04-22 Vanguard Research, Inc. Methods and systems for safely processing hazardous waste
US20030047146A1 (en) * 2001-09-10 2003-03-13 Daniel Michael J. Plasmatron-internal combustion engine system having an independent electrical power source
US20030047147A1 (en) * 2001-09-10 2003-03-13 Daniel Michael J. Plasmatron-internal combustion engine system having an independent electrical power source
US20030140622A1 (en) * 2002-01-25 2003-07-31 William Taylor Combination emission abatement assembly and method of operating the same
US20030143442A1 (en) * 2002-01-25 2003-07-31 Daniel Michael J. Apparatus and method for operating a fuel reformer to generate multiple reformate gases
US6959542B2 (en) 2002-01-25 2005-11-01 Arvin Technologies, Inc. Apparatus and method for operating a fuel reformer to regenerate a DPNR device
US20030143445A1 (en) * 2002-01-25 2003-07-31 Daniel Michael J. Apparatus and method for operating a fuel reformer to provide reformate gas to both a fuel cell and an emission abatement device
US20050072140A1 (en) * 2002-01-25 2005-04-07 William Taylor Apparatus and method for operating a fuel reformer to regenerate a DPNR device
US7021048B2 (en) 2002-01-25 2006-04-04 Arvin Technologies, Inc. Combination emission abatement assembly and method of operating the same
US6976353B2 (en) 2002-01-25 2005-12-20 Arvin Technologies, Inc. Apparatus and method for operating a fuel reformer to provide reformate gas to both a fuel cell and an emission abatement device
US20030196611A1 (en) * 2002-04-23 2003-10-23 Daniel Michael J. Plasmatron having an air jacket and method for operating the same
US20030200742A1 (en) * 2002-04-24 2003-10-30 Smaling Rudolf M. Apparatus and method for regenerating a particulate filter of an exhaust system of an internal combustion engine
US20040020191A1 (en) * 2002-08-05 2004-02-05 Kramer Dennis A. Method and apparatus for advancing air into a fuel reformer by use of a turbocharger
US20040020447A1 (en) * 2002-08-05 2004-02-05 William Taylor Method and apparatus for advancing air into a fuel reformer by use of an engine vacuum
US20040020188A1 (en) * 2002-08-05 2004-02-05 Kramer Dennis A. Method and apparatus for generating pressurized air by use of reformate gas from a fuel reformer
US20040028964A1 (en) * 2002-08-12 2004-02-12 Smaling Rudolf M. Apparatus and method for controlling the oxygen-to-carbon ratio of a fuel reformer
US20040050345A1 (en) * 2002-09-17 2004-03-18 Bauer Shawn D. Fuel reformer control system and method
US20040052693A1 (en) * 2002-09-18 2004-03-18 Crane Samuel N. Apparatus and method for removing NOx from the exhaust gas of an internal combustion engine
US20040050035A1 (en) * 2002-09-18 2004-03-18 Smaling Rudolf M. Method and apparatus for purging SOx from NOx trap
US6758035B2 (en) 2002-09-18 2004-07-06 Arvin Technologies, Inc. Method and apparatus for purging SOX from a NOX trap
US6702991B1 (en) 2002-11-12 2004-03-09 Arvin Technologies, Inc. Apparatus and method for reducing power consumption of a plasma fuel reformer
US6715452B1 (en) 2002-11-13 2004-04-06 Arvin Technologies, Inc. Method and apparatus for shutting down a fuel reformer
US20040107987A1 (en) * 2002-12-06 2004-06-10 Ciray Mehmet S. Thermoelectric device for use with fuel reformer and associated method
US20040139729A1 (en) * 2003-01-16 2004-07-22 William Taylor Method and apparatus for removing NOx and soot from engine exhaust gas
US20040139730A1 (en) * 2003-01-16 2004-07-22 William Taylor Method and apparatus for directing exhaust gas and reductant fluid in an emission abatement system
US6843054B2 (en) 2003-01-16 2005-01-18 Arvin Technologies, Inc. Method and apparatus for removing NOx and soot from engine exhaust gas
US20040144030A1 (en) * 2003-01-23 2004-07-29 Smaling Rudolf M. Torch ignited partial oxidation fuel reformer and method of operating the same
CN1754066B (en) 2003-02-12 2011-02-02 普拉斯科能源Ip控股公司毕尔巴鄂-沙夫豪森分公司 Multiple plasma generator hazardous waste processing system
WO2004072547A1 (en) * 2003-02-12 2004-08-26 Plasco Energy Group Inc. Multiple plasma generator hazardous waste processing system
US20040159289A1 (en) * 2003-02-13 2004-08-19 William Taylor Method and apparatus for controlling a fuel reformer by use of existing vehicle control signals
US6851398B2 (en) 2003-02-13 2005-02-08 Arvin Technologies, Inc. Method and apparatus for controlling a fuel reformer by use of existing vehicle control signals
US20040216378A1 (en) * 2003-04-29 2004-11-04 Smaling Rudolf M Plasma fuel reformer having a shaped catalytic substrate positioned in the reaction chamber thereof and method for operating the same
US20050070751A1 (en) * 2003-09-27 2005-03-31 Capote Jose A Method and apparatus for treating liquid waste
US20050086865A1 (en) * 2003-10-24 2005-04-28 Crane Samuel N.Jr. Method and apparatus for trapping and purging soot from a fuel reformer
US7285247B2 (en) 2003-10-24 2007-10-23 Arvin Technologies, Inc. Apparatus and method for operating a fuel reformer so as to purge soot therefrom
US20050087436A1 (en) * 2003-10-24 2005-04-28 Smaling Rudolf M. Apparatus and method for operating a fuel reformer so as to purge soot therefrom
US7244281B2 (en) 2003-10-24 2007-07-17 Arvin Technologies, Inc. Method and apparatus for trapping and purging soot from a fuel reformer
WO2005052448A1 (en) * 2003-11-18 2005-06-09 Zwilag Zwischenlager Würenlingen Ag Rotating hearth furnace for waste with a hazard potential
EP1533567A1 (en) * 2003-11-18 2005-05-25 Zwilag Zwischenlager Würenlingen AG Furnace with rotating hearth for dangerous wastes
US20060065172A1 (en) * 2004-03-19 2006-03-30 Peat International, Inc. Method and apparatus for treating waste
US7216593B2 (en) 2004-03-19 2007-05-15 Peat International, Inc. Apparatus for treating liquid waste
US6971323B2 (en) 2004-03-19 2005-12-06 Peat International, Inc. Method and apparatus for treating waste
US7776280B2 (en) 2005-05-10 2010-08-17 Emcon Technologies Llc Method and apparatus for selective catalytic reduction of NOx
US20080202028A1 (en) * 2005-06-03 2008-08-28 Plasco Energy Group Inc. System For the Conversion of Carbonaceous Fbedstocks to a Gas of a Specified Composition
US20080222956A1 (en) * 2005-06-03 2008-09-18 Plasco Energy Group Inc. System for the Conversion of Coal to a Gas of Specified Composition
US20060287802A1 (en) * 2005-06-17 2006-12-21 ArvinMeritor Emissions Method and apparatus for determining local emissions loading of emissions trap
US20060283176A1 (en) * 2005-06-17 2006-12-21 Arvinmeritor Emissions Technologies Gmbh Method and apparatus for regenerating a NOx trap and a particulate trap
US7698887B2 (en) 2005-06-17 2010-04-20 Emcon Technologies Llc Method and apparatus for determining local emissions loading of emissions trap
US8156876B2 (en) 2005-06-23 2012-04-17 Georgia Tech Research Corporation Systems and methods for integrated plasma processing of waste
US20070012231A1 (en) * 2005-06-23 2007-01-18 Georgia Tech Research Corporation Systems and methods for integrated plasma processing of waste
US20070095053A1 (en) * 2005-10-31 2007-05-03 Arvin Technologies, Inc. Method and apparatus for emissions trap regeneration
US20070163387A1 (en) * 2006-01-17 2007-07-19 Rmi Titanium Company Method and apparatus for preheating and feeding material
US7832344B2 (en) 2006-02-28 2010-11-16 Peat International, Inc. Method and apparatus of treating waste
US20070199485A1 (en) * 2006-02-28 2007-08-30 Capote Jose A Method and apparatus of treating waste
US20090071382A1 (en) * 2006-03-10 2009-03-19 Howard Morgan Clarke Waste treatment apparatus and method
US9851100B2 (en) 2006-03-10 2017-12-26 Pyropure Limited Waste treatment apparatus and method
US8307770B2 (en) 2006-03-10 2012-11-13 Pyropure Limited Waste treatment apparatus and method
US8372169B2 (en) 2006-05-05 2013-02-12 Plasco Energy Group Inc. Low temperature gasification facility with a horizontally oriented gasifier
US20080209807A1 (en) * 2006-05-05 2008-09-04 Andreas Tsangaris Low Temperature Gasification Facility with a Horizontally Oriented Gasifier
US8435315B2 (en) 2006-05-05 2013-05-07 Plasco Energy Group Inc. Horizontally-oriented gasifier with lateral transfer system
US20080147241A1 (en) * 2006-05-05 2008-06-19 Placso Energy Group Inc. Control System for the Conversion of Carbonaceous Feedstock into Gas
US9109172B2 (en) 2006-05-05 2015-08-18 Plasco Energy Group Inc. Low temperature gasification facility with a horizontally oriented gasifier
US8306665B2 (en) 2006-05-05 2012-11-06 Plasco Energy Group Inc. Control system for the conversion of carbonaceous feedstock into gas
US8690975B2 (en) 2007-02-27 2014-04-08 Plasco Energy Group Inc. Gasification system with processed feedstock/char conversion and gas reformulation
US20080277265A1 (en) * 2007-05-11 2008-11-13 Plasco Energy Group, Inc. Gas reformulation system comprising means to optimize the effectiveness of gas conversion
US20100154304A1 (en) * 2007-07-17 2010-06-24 Plasco Energy Group Inc. Gasifier comprising one or more fluid conduits
US20090050561A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater
US8252244B2 (en) 2008-02-08 2012-08-28 Peat International, Inc. Method and apparatus of treating waste
US20090200180A1 (en) * 2008-02-08 2009-08-13 Capote Jose A Method and apparatus of treating waste
US8671855B2 (en) 2009-07-06 2014-03-18 Peat International, Inc. Apparatus for treating waste
US9222026B2 (en) 2010-09-11 2015-12-29 Alter Nrg Corp. Plasma gasification reactors with modified carbon beds and reduced coke requirements
US9656915B2 (en) 2010-09-11 2017-05-23 Alter Nrg Corp. Plasma gasification reactors with modified carbon beds and reduced coke requirements
US9321640B2 (en) 2010-10-29 2016-04-26 Plasco Energy Group Inc. Gasification system with processed feedstock/char conversion and gas reformulation

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Publication number Publication date Type
JPS4952465A (en) 1974-05-21 application
JPS52108882U (en) 1977-08-18 application
JPS5333424Y2 (en) 1978-08-17 grant

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