Patent application number | Description | Published |
20080226515 | Purification of Carbon Dioxide | 09-18-2008 |
20090162268 | Carbon Dioxide Separation Via Partial Pressure Swing Cyclic Chemical Reaction - A method for separating a reactive gas from a feed gas mixture is disclosed. The method includes reacting the reactive gas with a bed of reactive solid in an exothermic reaction to create a second solid and a product gas from which the reactive gas is depleted. The product gas is removed and the heat from the reaction is used to liberate the reactive gas from the second solid in an endothermic reaction which yields the reactive solid. The reactive gas is removed and sequestered. Heat reservoir material is included in the bed to retain the heat in support of the endothermic reaction. A device for executing the method having an insulated chamber holding the bed, as well as process units formed of multiple beds are also disclosed. The process units allow the method to be operated cyclically, providing a continuous flow of feed gas, reactive gas and product gas. | 06-25-2009 |
20090206006 | Process and Apparatus for Upgrading Heavy Hydrocarbons Using Supercritical Water - Heavy hydrocarbons are upgraded more efficiently to lighter, more valuable, hydrocarbons with lower amounts of solid carbonaceous by-products in supercritical water using two heating stages, the first stage at a temperature up to about 775K and the second stage at a temperature from about 870K to about 1075K. The temperature is preferably raised from the first temperature to the second temperature by internal combustion using oxygen. | 08-20-2009 |
20090206007 | PROCESS AND APPARATUS FOR UPGRADING COAL USING SUPERCRITICAL WATER - Coal is converted into hydrocarbon compounds using supercritical water. The process involves two stages; a first stage in which carbonaceous material is reacted with supercritical water at above 850K to produce a first supercritical fluid reaction mixture comprising hydrocarbon compounds; and a second stage in which hydrocarbon compounds are extracted from coal mixed with at least a portion of the first supercritical fluid at a temperature within a range of from the supercritical temperature of water to about 695K. Char from the second stage is finely divided and may be either be used outside the process, e.g. in a coal fired power station or a gasifier, or used as at least a portion of the carbonaceous material used in the first stage. | 08-20-2009 |
20100007146 | Method And Apparatus For Generating Electrical Power - A superheater in a power plant that superheats steam to operation conditions exceeding an operating limit of an associated steam-producing boiler. The superheater combusts oxygen and fuel with cooled recycled combustion gas to produce a CO | 01-14-2010 |
20100040520 | Carbon Dioxide Separation Via Partial Pressure Swing Cyclic Chemical Reaction - A method and bed for separating a reactive gas from a feed gas mixture is disclosed. The method includes reacting the reactive gas with a bed of reactive solid in an exothermic reaction to create a second solid and a product gas from which the reactive gas is depleted. The product gas is removed and the heat from the reaction is used to liberate the reactive gas from the second solid in an endothermic reaction which yields the reactive solid. The reactive gas is removed and sequestered. Heat reservoir material is included in the bed to retain the heat in support of the endothermic reaction. A device for executing the method having an insulated chamber holding the bed, as well as process units formed of multiple beds are also disclosed. The process units allow the method to be operated cyclically, providing a continuous flow of feed gas, reactive gas and product gas. | 02-18-2010 |
20100189610 | Apparatus for Upgrading Heavy Hydrocarbons Using Supercritical Water - Heavy hydrocarbons are upgraded more efficiently to lighter, more valuable, hydrocarbons with lower amounts of solid carbonaceous by-products in supercritical water using two heating stages, the first stage at a temperature up to about 775K and the second stage at a temperature from about 870K to about 1075K. The temperature is preferably raised from the first temperature to the second temperature by internal combustion using oxygen. | 07-29-2010 |
20100300063 | Apparatus and Method for Combusting a Fuel at High Pressure and High Temperature, and Associated System and Device - A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a transpiration member. The transpiration member is at least partially surrounded by a pressure containment member. The combustion chamber has opposed inlet and outlet portions. The inlet portion of the combustion chamber is configured to receive the fuel mixture for the fuel mixture to be combusted at a combustion temperature. The combustion chamber is further configured to direct the resulting combustion product toward the outlet portion. The transpiration member directs a transpiration substance therethrough toward the combustion chamber for buffering interaction between the combustion product and the transpiration member. Associated systems, apparatuses, and methods are also provided. | 12-02-2010 |
20110083435 | APPARATUS FOR COMBUSTING A FUEL AT HIGH PRESSURE AND HIGH TEMPERATURE, AND ASSOCIATED SYSTEM - A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber further directs the combustion product longitudinally toward the outlet portion. The porous transpiration member is configured to substantially uniformly direct a transpiration substance laterally therethrough, about the perimeter thereof defining the combustion chamber and longitudinally between the inlet and outlet portions, toward the combustion chamber for buffering interaction between the combustion product and the porous transpiration member. Associated systems are also provided. | 04-14-2011 |
20110271713 | Purification of Carbon Dioxide - Impure carbon dioxide (“CO | 11-10-2011 |
20120067054 | HIGH EFFICIENCY POWER PRODUCTION METHODS, ASSEMBLIES, AND SYSTEMS - The present disclosure provides methods, assemblies, and systems for power production that can allow for increased efficiency and lower cost components arising from the control, reduction, or elimination of turbine blade mechanical erosion by particulates or chemical erosion by gases in a combustion product flow. The methods, assemblies, and systems can include the use of turbine blades that operate with a blade velocity that is significantly reduced in relation to conventional turbines used in typical power production systems. The methods and systems also can make use of a recycled circulating fluid for transpiration protection of the turbine and/or other components. Further, recycled circulating fluid may be employed to provide cleaning materials to the turbine. | 03-22-2012 |
20120067056 | SYSTEM AND METHOD FOR HIGH EFFICIENCY POWER GENERATION USING A NITROGEN GAS WORKING FLUID - A method of power production using a high pressure/low pressure ratio Brayton Power cycle with predominantly N | 03-22-2012 |
20120067568 | METHOD OF USING CARBON DIOXIDE IN RECOVERY OF FORMATION DEPOSITS - The present invention relates to systems, apparatuses, and methods for providing a reliable, high purity source of CO | 03-22-2012 |
20120073261 | APPARATUS FOR COMBUSTING A FUEL AT HIGH PRESSURE AND HIGH TEMPERATURE, AND ASSOCIATED SYSTEM - A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber directs the combustion product longitudinally toward the outlet portion. The transpiration member is configured to substantially uniformly direct a transpiration substance therethrough toward the combustion chamber, such that the transpiration substance is directed to flow helically about the perimeter and longitudinally between the inlet and outlet portions, for buffering interaction between the combustion product and the transpiration member. Associated systems are also provided. | 03-29-2012 |
20130199195 | SYSTEM AND METHOD FOR HIGH EFFICIENCY POWER GENERATION USING A CARBON DIOXIDE CIRCULATING WORKING FLUID - The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO | 08-08-2013 |
20130213049 | SYSTEM AND METHOD FOR HIGH EFFICIENCY POWER GENERATION USING A CARBON DIOXIDE CIRCULATING WORKING FLUID - The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO | 08-22-2013 |
20140053529 | SYSTEM AND METHOD FOR HIGH EFFICIENCY POWER GENERATION USING A CARBON DIOXIDE CIRCULATING WORKING FLUID - The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO | 02-27-2014 |
20140331687 | High Efficiency Power Production Methods, Assemblies, and Systems - The present disclosure provides methods, assemblies, and systems for power production that can allow for increased efficiency and lower cost components arising from the control, reduction, or elimination of turbine blade mechanical erosion by particulates or chemical erosion by gases in a combustion product flow. The methods, assemblies, and systems can include the use of turbine blades that operate with a blade velocity that is significantly reduced in relation to conventional turbines used in typical power production systems. The methods and systems also can make use of a recycled circulating fluid for transpiration protection of the turbine and/or other components. Further, recycled circulating fluid may be employed to provide cleaning materials to the turbine. | 11-13-2014 |