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4796691 Fluidized bed heat exchange apparatus
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N e w Patents
reaction section by a gas-tight highly heatconductive boundary layer with the heatconductive material of both sections made preferably of sintered metal; the reaction section sintered metal can be coated with a catalyst substance; fluid medium conduits are provided to pass a heat transfer medium through the heat transfer section while the reaction section is provided with supply and exhaust conduits for a medium to be reacted in the reaction section.
heat exchange between the particulate material and a fluid flowed through the tubes is achieved.
4796570
Eberhard W Neumann, Ennigerloh, Federal Republic Of Germany assigned to Krupp Polysius AG
APPARATUS FOR HEATING STEAM FORMED FROM COOLING WATER Herman J Lameris, Utrecht, Netherlands assigned to Shell Internationale Research Maatschappij B V Steam is generated from cooling water in a heat exchanger for hot gases. Subsequently the steam is superheated by the gases to be cooled. This process is carried out by providing submerged water-tube superheater modules in, for example, a waste heat boiler/evaporator.
4796691 FLUIDIZED BED HEAT EXCHANGE APPARATUS Jean-Francoi Large, Pierre F Guigon, Compiegne, France assigned to Charbonnages de France A heat exchanger comprises two fluidization chambers separately supplied with fluidization gas. A heat transfer medium in the form of particulate material is supplied to the first chamber which is in communication with the second chamber. The second chamber has an outlet for discharging the heat transfer medium and contains a plurality of heat exchange tubes immersed in the fluidized bed therein. The particles of the heat transfer medium have average dimensions between 50 and 3,000 micrometers, and the maximum speed of the fluidizing gas in the second chamber is between 1.5 times and 10 times the minimum speed of fluidizatlon of the particles of the heat transfer medium. Adjacent heat exchange tubes are arranged to be spaced by a horizontal distance which is between 1.4 times and 2.1 times the external diameter of these tubes. Additionally, the tubes have a vertical spacing between 1.4 and 2.1 times the external diameter of these tubes. By these means efficient
4797091 METHOD AND APPARATUS FOR UTILIZING THE HEAT ENERGY OF DOMESTIC AND COMMERCIAL REFUSE
The invention relates to a method for utilizing the heat energy of domestic and commercial refuse in a rotary kiln installation. The prepared crude refuse is degassed in a pyrolysis reactor and the pyrolysis gas produced is delivered to the main burner of the rotary kiln, optionally using primary fuel. For optimum and economic production of the pyrolysis gas crushed refuse is dried pneumatically with the aid of exhaust air from the cooler and is delivered to the pyrolysis reactor. The pyrolysis reactor is heated indirectly to a low temperature with hot secondary air from the kiln outlet head and the pyrolysis gas produced is delivered together with used secondary air to the main burner of the kiln. 4797141 METHOD FOR OBTAINING CO2 AND N2 ~OM INTERNAL COMBUSTION ENGINE OR TURBINE GENERATED GASES Juan Mercader, Pablo Villamanan, Barcelona, Spain assigned to Carburos Metalicos S A The method consists of recovering heat conmined in the combustion gases in a first heat exchanger or boiler, recovering the heat given off by the engine or turbine in the form of steam and/or hot water, leading the previously cooled, in a second heat exchanger, combustion gases to a pressure gas holder, impelling the gases to a washing and cooling column and passing them through CO2 absorption columns wherein this latter is picked up whereas the remainder of gases, specially N2, are left free, and conventionally performing the steps for obtaining both gases. For performing all of the obtention procedure, use is made of only the combustion generated energy, thus thoroughly recovering the above gases with a whole benefit of the energy contributed by the hydrocarbons.
N e w Patents
reaction section by a gas-tight highly heatconductive boundary layer with the heatconductive material of both sections made preferably of sintered metal; the reaction section sintered metal can be coated with a catalyst substance; fluid medium conduits are provided to pass a heat transfer medium through the heat transfer section while the reaction section is provided with supply and exhaust conduits for a medium to be reacted in the reaction section.
heat exchange between the particulate material and a fluid flowed through the tubes is achieved.
4796570
Eberhard W Neumann, Ennigerloh, Federal Republic Of Germany assigned to Krupp Polysius AG
APPARATUS FOR HEATING STEAM FORMED FROM COOLING WATER Herman J Lameris, Utrecht, Netherlands assigned to Shell Internationale Research Maatschappij B V Steam is generated from cooling water in a heat exchanger for hot gases. Subsequently the steam is superheated by the gases to be cooled. This process is carried out by providing submerged water-tube superheater modules in, for example, a waste heat boiler/evaporator.
4796691 FLUIDIZED BED HEAT EXCHANGE APPARATUS Jean-Francoi Large, Pierre F Guigon, Compiegne, France assigned to Charbonnages de France A heat exchanger comprises two fluidization chambers separately supplied with fluidization gas. A heat transfer medium in the form of particulate material is supplied to the first chamber which is in communication with the second chamber. The second chamber has an outlet for discharging the heat transfer medium and contains a plurality of heat exchange tubes immersed in the fluidized bed therein. The particles of the heat transfer medium have average dimensions between 50 and 3,000 micrometers, and the maximum speed of the fluidizing gas in the second chamber is between 1.5 times and 10 times the minimum speed of fluidizatlon of the particles of the heat transfer medium. Adjacent heat exchange tubes are arranged to be spaced by a horizontal distance which is between 1.4 times and 2.1 times the external diameter of these tubes. Additionally, the tubes have a vertical spacing between 1.4 and 2.1 times the external diameter of these tubes. By these means efficient
4797091 METHOD AND APPARATUS FOR UTILIZING THE HEAT ENERGY OF DOMESTIC AND COMMERCIAL REFUSE
The invention relates to a method for utilizing the heat energy of domestic and commercial refuse in a rotary kiln installation. The prepared crude refuse is degassed in a pyrolysis reactor and the pyrolysis gas produced is delivered to the main burner of the rotary kiln, optionally using primary fuel. For optimum and economic production of the pyrolysis gas crushed refuse is dried pneumatically with the aid of exhaust air from the cooler and is delivered to the pyrolysis reactor. The pyrolysis reactor is heated indirectly to a low temperature with hot secondary air from the kiln outlet head and the pyrolysis gas produced is delivered together with used secondary air to the main burner of the kiln. 4797141 METHOD FOR OBTAINING CO2 AND N2 ~OM INTERNAL COMBUSTION ENGINE OR TURBINE GENERATED GASES Juan Mercader, Pablo Villamanan, Barcelona, Spain assigned to Carburos Metalicos S A The method consists of recovering heat conmined in the combustion gases in a first heat exchanger or boiler, recovering the heat given off by the engine or turbine in the form of steam and/or hot water, leading the previously cooled, in a second heat exchanger, combustion gases to a pressure gas holder, impelling the gases to a washing and cooling column and passing them through CO2 absorption columns wherein this latter is picked up whereas the remainder of gases, specially N2, are left free, and conventionally performing the steps for obtaining both gases. For performing all of the obtention procedure, use is made of only the combustion generated energy, thus thoroughly recovering the above gases with a whole benefit of the energy contributed by the hydrocarbons.