A method of generating syngas as a primary product from renewable feedstock, fossil fuels, or hazardous waste with the use of a cupola. The cupola operates on inductive heat alone, chemically assisted heat, or plasma assisted heat. Cupola operation is augmented by employing carbon or graphite rods to carry electrical current into the metal bath that is influenced by the inductive element. The method includes the steps of providing a cupola for containing a metal bath; and operating an inductive element to react with the metal bath. A combination of fossil fuel, a hazardous waste, and a hazardous material is supplied to the cupola. A plasma torch operates on the metal bath directly, indirectly, or in a downdraft arrangement. Steam, air, oxygen enriched air, or oxygen are supplied to the metal bath. A pregassifier increases efficiency and a duct fired burner is added to a simple cycle turbine with fossil fuel augmentation.

A method for the treatment of waste by plasma treating the waste to destroy the hazardous organic components and to yield a slag and an off-gas by plasma treating the waste in the presence of added oxygen gas in a transferred-arc plasma treatment unit, followed by directing off-gas from the plasma treatment unit to a thermal oxidizer combustion chamber.

The present invention relates to a process and a facility for the continuous vitrification treatment of fibrous materials, and in particular of asbestos and/or of asbestos-containing materials.

According to the invention, this process comprises the following steps: a bath of molten glass at a temperature of 1300° C. to 1600° C. is prepared; introduced into said bath of molten glass are said fibrous materials and optionally melting additives chosen so that said bath has, after addition of these fibrous materials and melting additives, the following composition: SiO.sub.2: between 30% and 55% by weight; FeO: between 25% and 45% by weight; alkali and alkaline-earth metal oxides: between 15% and 25% by weight; an oxidizer and a fuel are injected under pressure into said molten bath by means of at least one lance, one end of which is immersed in said bath; said oxidizer being introduced in a molar amount greater than or equal to the molar amount of fuel needed to maintain the temperature of the bath between 1300° C. and 1600° C.; and the temperature of at least one portion of the molten glass is lowered so as to render it solid.

A method and device for chemical destruction of at least one feed comprising at least one organic compound are provided. The device comprises at least one inductive plasma torch, means for introducing at least one plasma-forming gas into the torch, optionally when the plasma gas(es) comprise(s) no or little oxygen, means for bringing oxygen gas into the plasma or into the vicinity of the plasma, means for introducing the feed into the torch, a reaction enclosure capable of allowing thermal destruction of the gases flowing from the torch, a device allowing mixing of the gases flowing out of the reaction enclosure to be carried out, means for introducing air and/or oxygen gas into the mixing device, a device allowing recombination by cooling of at least one portion of the gases from the mixing device, the torch, the reaction enclosure, the mixing device and the recombination device being in fluidic communication.

Microwave plasma slowing system for a plasma shutter comprises a waveguide-band transmission for interconnection of the system with a generator, and for letting waves from the generator into the plasma shutter, a bridge band interconnected with the waveguide-band transmission, two parallel band waistlines, interconnected by its one end with the bridge band, where the band waistlines are flat plates, where one of its sides is provided with tenons arranged side by side along the axis of the band waistlines with orientation in a such way, that the tenons arranged on the one side of the first band waistline placed in turns between the tenons arranged on the one side of the second band waistline, where the band waistlines are provided at the other end by mutually separated lockable electromagnetic oscillators.

A method of generating syngas as a primary product from renewable feedstock, fossil fuels, or hazardous waste with the use of a cupola. The cupola operates selectably on inductive heat alone, chemically assisted heat, or plasma assisted heat. Additionally, the operation of the cupola is augmented by the use of direct acting carbon or graphite rods that carry electrical current for additional heat generation into the metal bath that is influenced by the inductive element. The method includes the steps of providing a cupola for containing a metal bath; and operating an inductive element to react with the metal bath. Feedstock in the form of a combination of fossil fuel, a hazardous waste, and a hazardous material is supplied to the cupola. A plasma torch operates on the metal bath selectably directly and indirectly. Steam, air, oxygen enriched air, and oxygen are supplied in selectable combinations.

A system and method for plasma treatment comprises a radiofrequency chamber, a microwave source configured to provide energy to the radiofrequency chamber, a reaction chamber configured to accept a treatment flow, a plasma dispensation assembly configured in the reaction chamber, the plasma dispensation assembly being powered by energy from the radiofrequency chamber, and a collection chamber for collecting treated material from the reaction chamber. The systems and methods can be used for treatment of various treatment flows.

The present invention relates to a fuel supply device of a circulating fluidized bed boiler. The fuel supply device includes: a feeder transferring fuel; a chute extending downwardly inclined from a lower end portion of the feeder to a combustor, the chute supplying the fuel to the combustor through a fuel injection hole; and a combustion heat blocking part provided at a portion of the fuel injection hole, the combustion heat blocking part preventing the fuel from being melted or burned at an end of the fuel injection hole connected to the combustor and in the fuel injection hole due to back fire. The combustion heat blocking part includes a heat shield plate installed at a sidewall of the combustor at an upper side of the fuel injection hole.

The invention relates to devices for disposal of waste in solid, liquid and gaseous state thereof, in particular, it relates to devices for providing waste disposal by plasma-chemical destruction. A technical effect obtained by this invention is implementation of a reactor providing destruction of both organic and inorganic substances of residential solid and/or liquid waste. The technical effect is obtained by a reactor provided in form of a closed cavity having an input orifice connected to a waste feed apparatus and an output orifice for outputting gaseous products of destruction. Inner surfaces of the cavity are made electrically conductive entirely or partially and an electrode is inserted into the reactor. The electrode is isolated from the conductive surfaces and connected to a source of high-voltage pulses, and size of a gap between the electrode and the conductive surfaces of the cavity provides formation of plasma streamers by corona discharge.

The invention relates to methods of household waste management, in particular, to methods of disposing waste by plasma-chemical destruction method. The invention is directed to attaining a technical effect of broadening range of technical solutions by providing a method of destruction of household waste at low temperature of treatment that is comparable to environment temperature. This technical effect is attained by a destruction method, where household waste is fed into a reactor via an input opening, and entry of atmospheric air into the reactor is restricted. The reactor is a closed cavity, whose inner surface is made conductive entirely or partially and is grounded. An electrode protrudes into the reactor, and this electrode is isolated from the grounded surface. High-voltage pulses are supplied to the electrode. The pulses cause formation of corona discharge streamers in a gap between the electrode and the conductive surface of the reactor.