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Acid gas control process and apparatus for waste fired incinerators
New Patents
4931265 CONDITIONING PROCESS FOR DUST-CONTAINING WASTE GAS Wilhelm Leussler, Frankfurt, Federal Republic Of Germany assigned to Metallgesellschaft Aktiengesellschaft Disclosed is an improved process for the production of a sulfur trioxide conditioning gas, which consists in compensating the faulty ambient gas temperature in a simple and effective manner, such that all of the subsequent functions can take place at the established optimum temperature and can no longer be adversely affected by fluctuations in the ambient air temperature.
4940010 ACID GAS CONTROL PROCESS AND APPARATUS FOR WASTE FIRED INCINERATORS
An air-starved, batch burn, modular, municipal waste incinerator. It is designed to oxidize unsorted loads of heterogeneous materials in quantities ranging from 5 to 500 tons per 12 to 15 hours. The unique aspect of this system design is that through research in air mixing, air turbulence, and temperature control, it is possible to burn this material with a highly favorable stack emission product, without the need for bag houses, dry scrubbing, or other elaborate down stream air processing equipment. The incinerator includes a primary combustion chamber connected to a secondary combustion unit by a gas transfer tube. Solid material in the primary is oxidized-or gasified-without live flame. This flammable gas stream is vented into the secondary for ignition. Combustion gases from the primary chamber are completely burned in the secondary combustion unit as the gases pass upwardly through the air mixing ring and tangentially disposed re-ignition burners. The tangential orientation of the re-ignition burners forms a vortex of flame through which the combustion gases travel before exiting from the stack.
Peter Kubin, Jiri Stepan assigned to OgdenMartin Systems Inc An apparatus for incinerating waste material and for reducing noxious byproducts of the incineration process. The apparatus consists of a furnace having a turbulent reaction zone whereby an overfire air header and additive distributor and lime injection nozzles connected to the incinerator through a plurality of nozzles located at even distances about the arrangement is the turbulent reaction zone of the furnace such that an additive mixture is injected into the turbulent zone through and distributed evenly during combustion across the entire width of the turbulent area. As a result, a reaction between the combustion products and the additive is optimized resulting in an overall reduction in acid gas content, acid dewpoint temperature and the corrosion levels inside the incinerator and auxiliary equipment.
4941415 MUNICIPAL WASTE THERMAL OXIDATION SYSTEM G Michael Pope, Donald F Kerr assigned to Entech Corporation
4941952 PROCESS FOR THE TREATMENT OF WASTE MATERIAL Monika Betz, Ketsch, Federal Republic Of Germany assigned to Asea Brown Boveri Aktiengesellschaft In the treatment of hydrocarbon-containing waste material, in particular plastic-containing waste material, by pyrolysis, gases containing hydrogen halide compounds which are formed are neutralized by the addition of basic additive material. Since the reacted additive material increases the pyrolysis residue, it is desirable to monitor the controlled feed of the additive material. Therefore, the pH value is measured in the low-boiling pyrolysis oil, which additionally also contains water vapor condensate, and the controlled feed of the additive material is automatically varied as a function of the measurement. The result is that the pollutants are largely, or at least adequately, bound with low consumption of additive material.
4931265 CONDITIONING PROCESS FOR DUST-CONTAINING WASTE GAS Wilhelm Leussler, Frankfurt, Federal Republic Of Germany assigned to Metallgesellschaft Aktiengesellschaft Disclosed is an improved process for the production of a sulfur trioxide conditioning gas, which consists in compensating the faulty ambient gas temperature in a simple and effective manner, such that all of the subsequent functions can take place at the established optimum temperature and can no longer be adversely affected by fluctuations in the ambient air temperature.
4940010 ACID GAS CONTROL PROCESS AND APPARATUS FOR WASTE FIRED INCINERATORS
An air-starved, batch burn, modular, municipal waste incinerator. It is designed to oxidize unsorted loads of heterogeneous materials in quantities ranging from 5 to 500 tons per 12 to 15 hours. The unique aspect of this system design is that through research in air mixing, air turbulence, and temperature control, it is possible to burn this material with a highly favorable stack emission product, without the need for bag houses, dry scrubbing, or other elaborate down stream air processing equipment. The incinerator includes a primary combustion chamber connected to a secondary combustion unit by a gas transfer tube. Solid material in the primary is oxidized-or gasified-without live flame. This flammable gas stream is vented into the secondary for ignition. Combustion gases from the primary chamber are completely burned in the secondary combustion unit as the gases pass upwardly through the air mixing ring and tangentially disposed re-ignition burners. The tangential orientation of the re-ignition burners forms a vortex of flame through which the combustion gases travel before exiting from the stack.
Peter Kubin, Jiri Stepan assigned to OgdenMartin Systems Inc An apparatus for incinerating waste material and for reducing noxious byproducts of the incineration process. The apparatus consists of a furnace having a turbulent reaction zone whereby an overfire air header and additive distributor and lime injection nozzles connected to the incinerator through a plurality of nozzles located at even distances about the arrangement is the turbulent reaction zone of the furnace such that an additive mixture is injected into the turbulent zone through and distributed evenly during combustion across the entire width of the turbulent area. As a result, a reaction between the combustion products and the additive is optimized resulting in an overall reduction in acid gas content, acid dewpoint temperature and the corrosion levels inside the incinerator and auxiliary equipment.
4941415 MUNICIPAL WASTE THERMAL OXIDATION SYSTEM G Michael Pope, Donald F Kerr assigned to Entech Corporation
4941952 PROCESS FOR THE TREATMENT OF WASTE MATERIAL Monika Betz, Ketsch, Federal Republic Of Germany assigned to Asea Brown Boveri Aktiengesellschaft In the treatment of hydrocarbon-containing waste material, in particular plastic-containing waste material, by pyrolysis, gases containing hydrogen halide compounds which are formed are neutralized by the addition of basic additive material. Since the reacted additive material increases the pyrolysis residue, it is desirable to monitor the controlled feed of the additive material. Therefore, the pH value is measured in the low-boiling pyrolysis oil, which additionally also contains water vapor condensate, and the controlled feed of the additive material is automatically varied as a function of the measurement. The result is that the pollutants are largely, or at least adequately, bound with low consumption of additive material.