Abstract:
Processes and systems are provided that include introducing ammonia liberated from organic waste to a coal burner in a coal burning power plant, preferably for NOx removal at the power plant. The ammonia is preferably either ammonia liberated upon drying a mixture of organic waste and coal combustion by-products or ammonia liberated when organic waste is mixed with coal combustion by-products and one or more alkaline additives. Also provided are processes and systems of fueling a coal burner of a power plant with coal and either a dried mixture of organic waste and coal combustion by-products, or a mixture of organic waste, coal combustion by-products and one or more alkaline additives. The present invention is further directed to mixtures of either organic waste and coal combustion by-products, or mixtures of organic waste, coal combustion by-products and alkaline additives made by the processes of the present invention.
Abstract:
The present invention relates to a method and to a device intended for spontaneous combustion of a fuel comprising organic, vegetable or mineral materials, the device comprising a combustion chamber, at least one fuel injection means, at least one air inlet, hot fumes discharge means. Chamber (1) comprises a cylindrical shell (11), the discharge means comprise a pipe (6) having the same axis as the chamber and arranged inside said chamber, and fuel injection means (7) is arranged substantially tangential to said cylindrical shell so that the fuel follows a circular motion around said pipe in the chamber.
Abstract:
A waste processing system is provided herein which entails the use of at least one fixed-position plasma arc generator for primary processing and at least one moveable plasma arc generator for secondary processing assistance and/or final conditioning of the slag prior to exit from the reactor vessel. This optimum processing environment is provided by control of reactor vessel configuration and real time control of processing characteristics to ensure maximum processing efficiency.
Abstract:
An emissions credit process (30) that facilitates the provision of emissions credits to parties that make significant contributions to effecting a particular desired emissions reduction goal or goals as pertains to a reduction of emissions that correspond to consumption of a given consumable product (12) by one or more end-user mobile platforms (13).
Abstract:
A plurality of fluxing agent inlets are provided at the lower part of a waste processing chamber to enable the direct application of fluxing agents to deposited nullunprocessed solidsnull and/or to liquid products of high viscosity therein. Means are provided for sensing the presence of such blockages in the lower part of the chamber and for providing the fluxing agents thereto to remove the blockage.
Abstract:
The starting point is a process to improve the performance of the incineration of combustible waste material in an incineration chamber, whereby the waste material is conveyed to a burner flame where it is burned with combustion air at a temperature in the range from 1100null C. to 1700null C. null2012null F. to 3092null F.null. On this basis, in order to create a process that allows a capacity increase of installations employed for the exothermal incineration of waste materials, it is proposed according to the invention that at least part of the combustion air is replaced by an oxygen-rich gas having an oxygen content that is higher than that of air and that the oxygen-rich gas is mixed with a cooling medium.
Abstract:
Provided are a method of treating coal ash by mixing it with water, in which the coal ash and water undergo a temperature difference therebetween while they are mixed; and a method of desulfurization in a coal combustion boiler system, which comprises mixing coal ash that has been separated from a ash collector in the system, with water on the condition that the two undergo a temperature difference therebetween while they are mixed, and circulating the resulting mixture that serves as a desulfurizing agent into the coal combustor in the system. The desulfurization capability of the desulfurizing agent used in the desulfurization method is higher than that of the desulfurizing agent obtained through hydration of coal ash with water or steam.
Abstract:
In a method for reducing the content of polychlorinated dibenzodioxins and -furans in the exhaust gas of chemical high temperature processes handling process materials, amides or organic oxides are made available to the process under the conditions under which the polychlorinated dibenzodioxins and -furans are generated, which amides comprise of at least one of the group consisting of amidosulfonic acid, hydroxyl amino sulfonic acid and sulfamid in an amount of 0.5 to 10% of the process material.
Abstract:
An apparatus for treating organic waste material characterized by high ash content is disclosed. The apparatus includes a slagging combustor for burning the organic waste material to produce a slag of molten inorganic ash and exhaust gases, a cooler for receiving the exhaust gases from the combustor and cooling the exhaust gases, a condenser for receiving cooled exhaust gases from the cooler and drying the cooled exhaust gases, an exhaust gas recirculation conduit for receiving a first portion of cooled and dried exhaust gases from the condenser, and a source of concentrated oxygen gas in fluid communication with the exhaust gas recirculation conduit for adding concentrated oxygen gas to the first portion of cooled and dried exhaust gases to create a gas mixture that is added to the combustor through the exhaust gas recirculation conduit, wherein the source of concentrated oxygen gas includes a valve responsive to an oxygen sensor in the exhaust gas recirculation conduit for regulating the flow of concentrated oxygen gas into the exhaust gas recirculation conduit.
Abstract:
The invention concerns a plant for the thermolysis of waste products containing an organic fraction, and for simultaneous energetically upgrading these waste products comprising: a unit for loading and supplying the waste products to be treated; a thermolysis reactor for thermal dissociation under reduced pressure at high temperature. The invention is characterized in that it comprises: upstream and downstream of the reactor, a lock chamber for maintaining a partial vacuum in the reactor for ensuring thermolysis in an atmosphere with low oxygen content; first means for recuperating, in the upper part of the reactor, the organic gas fraction formed during thermolysis, and for bringing this fraction to a combustion chamber supplying a steam generator; second means for recuperating at the bottom of the reactor the solid carbon products formed during thermolysis, and for bringing these solid products to a combustion chamber supplying a steam generator or an evacuating system. The gas of the combustion chamber and the steam produced by the steam generator, in turn supply the unit producing the waste products and/or means for drying in advance of the waste products provided just upstream of the reactor.