Abstract:
A device heating a fluid and usable in a rocket launcher to pressurize a liquefied propellant. The device includes a first burner performing first combustion between a limiting propellant and an excess propellant; a first heat exchanger in which first burnt gas from the first combustion transfers heat to the fluid; at least one second burner into which both the first burnt gas and some limiting propellant are injected to perform second combustion between the limiting propellant and at least a portion of unburnt excess propellant present in the first burnt gas. The second burnt gas from the second combustion flows through a second heat exchanger to transfer heat to the fluid. Burnt gas from each combustion flows in respective burnt gas tubes within a common overall heat exchanger including the heat exchange units, the gas transferring heat to the fluid, the fluid flowing between the burnt gas tubes.
Abstract:
A thermal power plant with sequential combustion and reduced CO2 emissions is disclosed, which includes the following components, which are connected in series via in each case at least one flow passage (S): a combustion feed air compressor unit, a first combustion chamber, a high-pressure turbine stage, a second combustion chamber and a low-pressure turbine stage. The second combustion chamber and/or the low-pressure turbine stage can be supplied with a cooling gas stream for cooling purposes. A method for operating a thermal power plant of this type is also disclosed.
Abstract:
A combination of parallel processes is disclosed to provide optimal re-mediation operations for contaminated soil. Soils with high levels of heavy petroleum hydrocarbons are directed to a thermal process for destruction in a combustion process. Carbon dioxide generated and recovered in the thermal process is employed as a solvent in a solvent process to clean other soils of petroleum hydrocarbons and certain chlorinated hydrocarbon compounds. In the solvent process, contaminated soils are run through a closed soil separator where the soils are washed with carbon dioxide. The carbon dioxide is then dried from the soil and the soil is sent for segregation. Soils with the lightest forms of hydrocarbon contamination (gasoline, etc.) are subjected to a vaporization process utilizing heat energy generated in the thermal process to heat the soil, under a partial vacuum, and the vapors generated are captured, condensed, and recovered as product.
Abstract:
The present invention is a method, and an apparatus for practicing the method, that creates a product stream and a heat of reaction from a fuel-rich fuel/air mixture and then contacts the product stream with a sufficient quantity of additional air to completely combust all of the fuel, to which air a portion of the heat of reaction has been transferred.
Abstract:
A system and a process for combusting hydrocarbons to recover energy and the carbon dioxide resulting from the combustion is provided. The process utilizes a two-stage combustion process, each stage utilizing water injection and a recirculation stream to increase the efficiency of combustion to generate larger proportions of carbon dioxide. An energy recovery boiler is used to recover heat energy from the combustion product. Combustion product is then cleaned and the carbon dioxide is separated and condensed into a useable liquid carbon dioxide product.
Abstract:
Eine Brenneranordnung für eine Brennkammer (12) sowie eine zugehörige Brennkammer (12), insbesondere eine Gasturbinen brennkammer oder eine Dampf erzeugerbrennkammer, mit einer Mehrzahl von Brennern (8), die jeweils für die Verbrennung eines kohlenstoffhaltigen Brennstoffs unter Zufuhr von als Oxidationsmittel wirksamen reinem Sauerstoff ausgelegt sind, sollen bei einfach und kostengünstig gehaltener Bau- und Be triebsweise unter Rückgriff auf geeignete Feuerungskonzepte eine Verbrennung des Brennstoffs mit einem besonders hohen energetischen Wirkungsgrad und mit besonders geringen Rest emissionen ermöglichen. Dabei sollen die zulässigen Werk stoff temperaturen der die Brennkammer (12) umschließenden Um fassungswände (6) nicht überschritten werden. Dazu ist erfin dungsgemäß ein erster Brenner (8) derart ausgelegt, dass das Verhältnis (λ) der ihm im Normalbetrieb pro Zeiteinheit zuge führten Sauerstoffmenge zur stöchiometrisch notwendigen Sau erstoffmenge größer ist als für einen zweiten, in Richtung der Rauchgasströmung (14) gesehen weiter stromab liegenden Brenner (8) .
Abstract:
The present invention is a method, and an apparatus for practicing the method, that creates a product stream (31) and a heat of reaction (39) from a fuel-rich fuel/air mixture (37) and then contacts the product stream with a sufficient quantity of additional air (30) to completely combust all of the fuel, to which air a portion of the heat of reaction has been transferred.