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8700089 Method and apparatus for simultaneously recovering heat and removing gaseous and sticky pollutants from a heated, polluted gas flow
365
New Patents
compacted therein and at least a portion of the compacted refuse can be removed therefrom. Methane generated by anaerobic bacterial digestion of organic materials contained in the refuse can be removed and recovered.
down agglomerates and subsequently pelletized and bagged. The steel and glass are discarded as trash.
4643800
METHOD AND APPARATUS FOR SIMULTANEOUSLY RECOVERING HEAT AND REMOVING GASEOUS AND STICKY POLLUTANTS FROM A HEATED, POLLUTED GAS FLOW
METHODS OF DECONTAMINATING SECONDARY FIBER James F Maloney, Richard E Freis, Thomas R Oakes assigned to Diamond Shamrock Chemicals Company The method of substantially removing and dispersing resinous or waxy contaminants from contaminant-containing secondary fiber during repulping, is disclosed. The method includes combining the contaminant-containing secondary fiber in an aqueous repulping medium with a substituted oxyethylene glycol nonionic surfactant, and a water soluble, low molecular weight polyelectrolyte dispersant, at an elevated temperature.
4647443 RECOVERY
PROCESS
Fre Apffel A process for economically recovering carbon black, oil and fuel gas from vehicle tires is disclosed, for either whole tires or physically fragmented tires. The tires are washed to remove dirt and road film. The clean tires are dried and preheated with super-heat steam. The hot tires are pyrolyzed to partially devolatize a major portion of the hydrocarbons and produce a char that can be separated from the steel and fiber glass. The char is subsequently pyrolyzed with microwaves that elevate the tire temperature and devolatize the remaining hydrocarbons from the char as gas. The hot gases are cooled and partially condensed. The uncondensed gas is used as fuel. The condensed oil is sent to storage. The solid residue from the tire pyrolysis is char, fiberglass and steel. The char is mechanically separated from the glass and steel. The ehar is milled to break
8700089
Jacob WEITMAN, Tryffelstigen Nyk@ping, Sweden
8, S-611 63
The gas flow is ionised by its being caused to pass an emission electrode means (2) so that ions are formed and the polluant particles are given an electric charge. The particles are deposited by electrostatic attraction onto a combined collector electrode/heat exchanger surface (6), there also being generated a new aerosol by the gas flow being cooled as it passes said collector/heat exchanger surface, pollutants in the gas phase condensing onto the ions and electrically charged particles serving as condensation cores simultaneously as heat is recovered from the gas flow. The apparatus includes a heat exchanger (1) of the tube type, having a plurality of emission electrode means (2, 3, 4) inserted between groups of heat exchanger pipes. The collector electrode/heat exchanger surfaces on the pipes can be cleaned by a cleaning means (5) during operation of the appparatus, and in some applications the emission electrode means can also be automatically cleaned.
4649031 PROCESS FOR RECOVERING RARE METALS FROM THE COMBUSTION RESIDUE OF COAL BY DIGESTION Bela Matyas, Pal Gerber, Andras Solymos, Ferenc Kaszanitzky, Gyorgy Panto, Janos Leffler, Tatab Hungara assigned to Tatabanyai Szenbanyak The invention relates to a method for recovering
New Patents
compacted therein and at least a portion of the compacted refuse can be removed therefrom. Methane generated by anaerobic bacterial digestion of organic materials contained in the refuse can be removed and recovered.
down agglomerates and subsequently pelletized and bagged. The steel and glass are discarded as trash.
4643800
METHOD AND APPARATUS FOR SIMULTANEOUSLY RECOVERING HEAT AND REMOVING GASEOUS AND STICKY POLLUTANTS FROM A HEATED, POLLUTED GAS FLOW
METHODS OF DECONTAMINATING SECONDARY FIBER James F Maloney, Richard E Freis, Thomas R Oakes assigned to Diamond Shamrock Chemicals Company The method of substantially removing and dispersing resinous or waxy contaminants from contaminant-containing secondary fiber during repulping, is disclosed. The method includes combining the contaminant-containing secondary fiber in an aqueous repulping medium with a substituted oxyethylene glycol nonionic surfactant, and a water soluble, low molecular weight polyelectrolyte dispersant, at an elevated temperature.
4647443 RECOVERY
PROCESS
Fre Apffel A process for economically recovering carbon black, oil and fuel gas from vehicle tires is disclosed, for either whole tires or physically fragmented tires. The tires are washed to remove dirt and road film. The clean tires are dried and preheated with super-heat steam. The hot tires are pyrolyzed to partially devolatize a major portion of the hydrocarbons and produce a char that can be separated from the steel and fiber glass. The char is subsequently pyrolyzed with microwaves that elevate the tire temperature and devolatize the remaining hydrocarbons from the char as gas. The hot gases are cooled and partially condensed. The uncondensed gas is used as fuel. The condensed oil is sent to storage. The solid residue from the tire pyrolysis is char, fiberglass and steel. The char is mechanically separated from the glass and steel. The ehar is milled to break
8700089
Jacob WEITMAN, Tryffelstigen Nyk@ping, Sweden
8, S-611 63
The gas flow is ionised by its being caused to pass an emission electrode means (2) so that ions are formed and the polluant particles are given an electric charge. The particles are deposited by electrostatic attraction onto a combined collector electrode/heat exchanger surface (6), there also being generated a new aerosol by the gas flow being cooled as it passes said collector/heat exchanger surface, pollutants in the gas phase condensing onto the ions and electrically charged particles serving as condensation cores simultaneously as heat is recovered from the gas flow. The apparatus includes a heat exchanger (1) of the tube type, having a plurality of emission electrode means (2, 3, 4) inserted between groups of heat exchanger pipes. The collector electrode/heat exchanger surfaces on the pipes can be cleaned by a cleaning means (5) during operation of the appparatus, and in some applications the emission electrode means can also be automatically cleaned.
4649031 PROCESS FOR RECOVERING RARE METALS FROM THE COMBUSTION RESIDUE OF COAL BY DIGESTION Bela Matyas, Pal Gerber, Andras Solymos, Ferenc Kaszanitzky, Gyorgy Panto, Janos Leffler, Tatab Hungara assigned to Tatabanyai Szenbanyak The invention relates to a method for recovering