A waste processing system includes a pyrolysis apparatus that pyrolyzes a combustible waste, a melt-and-mold apparatus that generates an ingot of resin and combustible gas from a synthetic-resin waste, and an oil extraction apparatus that generates combustible oil and combustible gas from the ingot of resin. The melt-and-mold apparatus has a melter that melts the synthetic-resin waste using heat produced by the pyrolysis apparatus, the oil extraction apparatus has a pyrolyzer that pyrolyzes the ingot of resin using the heat produced by the pyrolysis apparatus, and at least one of the combustible gas generated at the melt-and-mold apparatus and the combustible gas generated at the oil extraction apparatus is supplied to the pyrolysis apparatus.

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.

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 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 blocking prevention device for a gasification melting system combusts and melts an object to be treated into a slag in a melting furnace after the object to be treated is converted into pyrolysis gas in a gasification furnace, the blocking prevention device including: a slag adhesion prevention device having a slag adhesion prevention capability for preventing adhesion of the slag at an opening part that may be blocked due to the adhesion of the slag; an imaging device that images the opening part; and a control device including a calculation unit that calculates a change rate of an opening area of the opening part using a plurality of images with different capturing times or a video, captured by the imaging device, and a prevention device control unit that changes the slag adhesion prevention capabilities of a plurality of the slag adhesion prevention devices in accordance with the change rate.

A process for pyrolysis of a mixed plastic stream that contains polyvinyl chloride (PVC) is provided in which the chloride from PVC is removed from an initial melting reactor that heats the mixed plastic stream to a sufficient temperature to produce HCl but at a low enough temperature to avoid production of organochlorides. Chloride is primarily removed in a vapor stream from the initial melting reactor, while additional chloride removal may be removed downstream from the melting reactor by the use of sorbent addition to the pyrolysis reactor and by subsequent adsorbent beds.

The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.

Provided is a cyclonic plasma melting furnace. A melting furnace chamber body includes an inlet through which waste is input and an outlet through which air or gas is discharged. The outlet is provided in a direction opposite to the inlet. At least one plasma torch is provided on the melting furnace chamber body so as to be inclined at a predetermined angle with respect to a direction in which the air or the gas is discharged through the outlet.

Provided is a cyclonic plasma melting furnace. A melting furnace chamber body includes an inlet through which waste is input and an outlet through which air or gas is discharged. The outlet is provided in a direction opposite to the inlet. At least one plasma torch is provided on the melting furnace chamber body so as to be inclined at a predetermined angle with respect to a direction in which the air or the gas is discharged through the outlet.

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.