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4670237 Process of removing pollutants from exhaust gases
ii
New Patents
to a power supply, and acts as the electrode for inductively charging the droplets. Because of its comparatively low resistivity, the inner ring can conduct some electric current, and can thus act as an electrode for inducing a charge on the droplets. The outer ring, having the higher resistivity, shields the inner ring, and reduces the risk of short circuits when the material has absorbed substantial amounts of moisture.
4670221
APPARATUS FOR NEUTRALIZATION OF ACIDIC POLLUTANTS IN FLUE GASES Crysanth Marnet, Borcher Dfederal Republic Of Germana Stadtwerke Dusseldorf AG
which is included in a circulating fluidized bed system consisting of a fluid&d bed reactor, a separator and a return line, a complete utilixation of the sorbent is achieved in that a partial stream of laden sorbent is withdrawn from the circulating fluid&d bed and is subjected at a temperature of 600+ 20 + 0 to 1200 + 20 f 0 C. to an oxidizing treatment, a major part of the sorbent that has been subjected to an oxidizing treatment is recycled to the circulating fluid&d bed, and a partial stream which contains the sorbent mainly in the form of calcium sulfate is removed from the process. Fresh sorbent is supplied to the circulating fluid&d bed and/or to the stage for the oxidizing treatment at the rate at which said partial stream is removed from the process. + RE
Kassebohm, assigned to
Apparatus for neutralization of acidic pollutants in flue gas contained in a flue gas channel comprising a flue gas channel for containing a flue gas, a suspension feed pipe having a delivery opening and being connected to apparatus for preparing and maintaining an erosive suspension of a finely divided basically reaction solid in a liquid for introducing suspension as such into the flue gas channel, a compressed gas pipe having a gas discharge opening, said opening being positioned to discharge gas so as to atomize the suspension after it has errited the delivery opening, a device for determining the amount of flue gas flowing through the channel and the amount of pollutants therein and apparatus for simultaneously and separately controlling the amount of suspension introduced and the concentration of said suspension and the amount of compressed gas used depending on the determined amount of flue gas, pollutants, or flue gas and pollutants in the flue gas channel.
4670237 PROCESS OF REMOVING POLLUTANTS FROM EXHAUST GASES Rolf Graf, Lotha Reh, Michael Schroter, Friedrichsdorf, Federal Republic Of Germany assigned to Metallgesellschaft AG In a process of removing pollutants consisting substantially of sulfur oxides from exhaust gases at temperatures below 15Of20 + 0 C. by means of a sorbent which contains calcium carbonate, calcium oxide and/or calcium hydroxide and
4670405
SENSOR ARRAY FOR TOXIC GAS DETECTION Joseph R Stetter, Solomon Zaromb, William Penrose assigned to The United States of America as represented by the United States Department of Energy A portable instrument for use in the field in detecting and identifying a hazardous component in air or other gas including an array of small sensors which upon exposure to the gas from a pattern of electrical responses, a source of standard response patterns characteristic of various components, and microprocessor means for comparing the sensor-formed response pattern with one or more standard patterns to thereby identify the component on a display. The number of responses may be increased beyond the number of sensors by changing the operating voltage, temperature or other condition associated with one or more sensors to provide a plurality of responses from each of one or more of the sensors. In one embodiment, the instrument is capable of identifying anyone of over 50E14 100 hazardous components. + RE
4671807 POLLUTION CONTROL DEVICE Jaehn Charlton A system for removing pollutants from products of combustion is described. The system is installed in a stack and includes a first wet scrubber
New Patents
to a power supply, and acts as the electrode for inductively charging the droplets. Because of its comparatively low resistivity, the inner ring can conduct some electric current, and can thus act as an electrode for inducing a charge on the droplets. The outer ring, having the higher resistivity, shields the inner ring, and reduces the risk of short circuits when the material has absorbed substantial amounts of moisture.
4670221
APPARATUS FOR NEUTRALIZATION OF ACIDIC POLLUTANTS IN FLUE GASES Crysanth Marnet, Borcher Dfederal Republic Of Germana Stadtwerke Dusseldorf AG
which is included in a circulating fluidized bed system consisting of a fluid&d bed reactor, a separator and a return line, a complete utilixation of the sorbent is achieved in that a partial stream of laden sorbent is withdrawn from the circulating fluid&d bed and is subjected at a temperature of 600+ 20 + 0 to 1200 + 20 f 0 C. to an oxidizing treatment, a major part of the sorbent that has been subjected to an oxidizing treatment is recycled to the circulating fluid&d bed, and a partial stream which contains the sorbent mainly in the form of calcium sulfate is removed from the process. Fresh sorbent is supplied to the circulating fluid&d bed and/or to the stage for the oxidizing treatment at the rate at which said partial stream is removed from the process. + RE
Kassebohm, assigned to
Apparatus for neutralization of acidic pollutants in flue gas contained in a flue gas channel comprising a flue gas channel for containing a flue gas, a suspension feed pipe having a delivery opening and being connected to apparatus for preparing and maintaining an erosive suspension of a finely divided basically reaction solid in a liquid for introducing suspension as such into the flue gas channel, a compressed gas pipe having a gas discharge opening, said opening being positioned to discharge gas so as to atomize the suspension after it has errited the delivery opening, a device for determining the amount of flue gas flowing through the channel and the amount of pollutants therein and apparatus for simultaneously and separately controlling the amount of suspension introduced and the concentration of said suspension and the amount of compressed gas used depending on the determined amount of flue gas, pollutants, or flue gas and pollutants in the flue gas channel.
4670237 PROCESS OF REMOVING POLLUTANTS FROM EXHAUST GASES Rolf Graf, Lotha Reh, Michael Schroter, Friedrichsdorf, Federal Republic Of Germany assigned to Metallgesellschaft AG In a process of removing pollutants consisting substantially of sulfur oxides from exhaust gases at temperatures below 15Of20 + 0 C. by means of a sorbent which contains calcium carbonate, calcium oxide and/or calcium hydroxide and
4670405
SENSOR ARRAY FOR TOXIC GAS DETECTION Joseph R Stetter, Solomon Zaromb, William Penrose assigned to The United States of America as represented by the United States Department of Energy A portable instrument for use in the field in detecting and identifying a hazardous component in air or other gas including an array of small sensors which upon exposure to the gas from a pattern of electrical responses, a source of standard response patterns characteristic of various components, and microprocessor means for comparing the sensor-formed response pattern with one or more standard patterns to thereby identify the component on a display. The number of responses may be increased beyond the number of sensors by changing the operating voltage, temperature or other condition associated with one or more sensors to provide a plurality of responses from each of one or more of the sensors. In one embodiment, the instrument is capable of identifying anyone of over 50E14 100 hazardous components. + RE
4671807 POLLUTION CONTROL DEVICE Jaehn Charlton A system for removing pollutants from products of combustion is described. The system is installed in a stack and includes a first wet scrubber