Abstract: A method is provided for producing carbon dioxide by combusting a carbonaceous fuel with oxygen or with a gas mixture containing more than 25 mol % of oxygen obtaining a flue gas mixture, wherein the flue gas mixture is processed obtaining a secondary gas mixture containing carbon dioxide and oxygen, and wherein a part of the oxygen contained in the secondary gas mixture is catalytically reacted with a first auxiliary fuel in a reactor system comprising a series of multiple reactors, obtaining further carbon dioxide and water. A further part of the oxygen contained in the secondary gas mixture is catalytically reacted with a second auxiliary fuel in the reactor system. A corresponding apparatus is also described herein.

Abstract: A method is provided in which a carbon dioxide containing flue gas is provided by combusting a carbonaceous fuel in a high pressure steam generating unit using combustion air, and in which the carbon dioxide in the flue gas is at least partially captured and compressed in a carbon dioxide capture and compression unit having a carbon dioxide scrubber operated with an absorbing liquid which is regenerated using low pressure steam. The combustion air used in the high pressure steam generating unit is at least partially heated using sensible heat of the flue gas and/or the steam used for regenerating the absorption liquid of the carbon dioxide scrubber is at least partially generated using sensible heat of the flue gas. A corresponding system is also described herein.

Abstract: Integration of an oxyfuel combustion boiler at elevated pressures and a heat exchanger is achieved to produce carbon dioxide by feeding flue gas comprising carbon dioxide and water from the oxyfuel combustion boiler to a direct contact cooler column wherein water is condensed at a temperature of 0 to 10° C. lower than its dew point; feeding a portion of the condensed water from the direct contact cooler column to the oxyfuel combustion boiler; feeding a portion of the carbon dioxide from the direct contact cooler column to the oxyfuel combustion boiler; and recovering a portion of the carbon dioxide from the direct contact cooler column.

Abstract: A method is provided for producing carbon dioxide by combusting a carbonaceous fuel with a oxygen or with a gas mixture containing more than 25 mol % of oxygen obtaining a flue gas mixture, wherein the flue gas mixture is processed obtaining a secondary gas mixture containing carbon dioxide and oxygen, and wherein a part of the oxygen contained in the secondary gas mixture is catalytically reacted with a first auxiliary fuel in a reactor system comprising a series of multiple reactors, obtaining further carbon dioxide and water. A further part of the oxygen contained in the secondary gas mixture is catalytically reacted with a second auxiliary fuel in the reactor system. A corresponding apparatus is also described herein.

Abstract: A method is provided in which a carbon dioxide containing flue gas is provided by combusting a carbonaceous fuel in a high pressure steam generating unit using combustion air, and in which the carbon dioxide in the flue gas is at least partially captured and compressed in a carbon dioxide capture and compression unit having a carbon dioxide scrubber operated with an absorbing liquid which is regenerated using low pressure steam. The combustion air used in the high pressure steam generating unit is at least partially heated using sensible heat of the flue gas and/or the steam used for regenerating the absorption liquid of the carbon dioxide scrubber is at least partially generated using sensible heat of the flue gas. A corresponding system is also described herein.

Abstract: A method for reducing the loss of solvent during carbon dioxide capture from flue gas in an amine based solvent process by the steps of feeding a flue gas containing carbon dioxide to an absorber column containing an amine solvent; absorbing carbon dioxide in the amine solvent forming a rich solvent; feeding the rich solvent to at least one inter-stage cooler; recovering the rich solvent and feeding the rich solvent to a regeneration column; separating the carbon dioxide from the rich solvent and recovering the carbon dioxide to form a lean solvent; feeding the lean solvent to the absorber column. The improvement is realized by one of feeding steam to the flue gas; feeding steam to the absorber column after introduction of amine solvent; feeding the flue gas stream to a demister before feeding to the absorber column or increasing the lean solvent inlet temperature into the absorber column.

Abstract: A method of integrating energy into a power cycle during production of carbon dioxide using the steps of a) combusting a fuel and oxygen in a reactor to produce a mixture of carbon dioxide and water, and form a heat of reaction; b) capturing the heat of reaction; c) converting the heat of reaction into electrical energy; d) feeding the electrical energy into the power cycle; and e) purifying and recovering carbon dioxide. Alternatively, a method for the production of carbon dioxide and power is disclosed by a) combusting a fuel and oxygen in a reactor to produce a flue gas comprising carbon dioxide and contaminants and a heat of reaction; b) recovering heat from the reactor and producing electricity from the heat; c) integrating the electricity into a power cycle; and d) removing contaminants from the carbon dioxide and recovering purified carbon dioxide.

Abstract: A method for reducing the loss of solvent during carbon dioxide capture from flue gas in an amine based solvent process by the steps of feeding a flue gas containing carbon dioxide to an absorber column containing an amine solvent; absorbing carbon dioxide in the amine solvent forming a rich solvent; feeding the rich solvent to at least one inter-stage cooler; recovering the rich solvent and feeding the rich solvent to a regeneration column; separating the carbon dioxide from the rich solvent and recovering the carbon dioxide to form a lean solvent; feeding the lean solvent to the absorber column. The improvement is realized by one of feeding steam to the flue gas; feeding steam to the absorber column after introduction of amine solvent; feeding the flue gas stream to a demister before feeding to the absorber column or increasing the lean solvent inlet temperature into the absorber column.

Abstract: A method for separating carbon dioxide from a flue gas stream wherein the flue gas stream is fed to an absorber column thereby producing a carbon dioxide depleted flue gas stream and wherein carbon dioxide absorbed from the carbon dioxide rich flue gas stream in the solvent is fed from the absorber column to a stripper column as a carbon dioxide rich solvent blend. The method is an improvement over prior carbon dioxide separation process by feeding the flue gas stream to a gas pre-treatment device prior to feeding into the absorber column preferably for decreasing the oxygen content in the flue gas and recycling a carbon dioxide product from the stripper column to the absorber column to increase the carbon dioxide content in the flue gas.

Abstract: A method is provided for separating hydrogen sulfide and carbon dioxide from an offgas stream from a direct reduced iron furnace. The offgas is directed to a separation device which will separate the carbon dioxide and hydrogen sulfide using a hydrogen sulfide absorber and a carbon dioxide absorber. The hydrogen sulfide can be recycled for reuse in the furnace and the carbon dioxide recovered for other additional uses.

Abstract: A method and system for integrating a power plant and a post combustion carbon capture plant such as a solvent based absorption-regeneration process plant. Electricity is produced by a boiler feeding steam to one or more turbines. The flue gas from the boiler is fed to a waste heat recovery unit which captures heat and provides it to the post combustion capture plant where it can be used in a stripper interstage heater as a supplemental heat for solvent regeneration. Additionally recovered heat can be also integrated with the power generation plant by transferring it to the boiler feed water heating system. Part of the electricity that is generated is also fed to the post combustion capture plant where it will be used to power unit operations therein.

Abstract: A method and system for integrating a power plant and a post combustion capture plant for producing carbon dioxide. The power plant can provide electricity to the post combustion capture plant created by passing steam from a boiler through turbines and feeding the flue gas created by heating the boiler as a feed gas stream to the post combustion capture plant.

Abstract: A method and system for integrating a power plant and a post combustion carbon capture plant such as a solvent based absorption-regeneration process plant. Electricity is produced by a boiler feeding steam to one or more turbines. The flue gas from the boiler is fed to a waste heat recovery unit which captures heat and provides it to the post combustion capture plant where it can be used in a stripper interstage heater as a supplemental heat for solvent regeneration. Additionally recovered heat can be also integrated with the power generation plant by transferring it to the boiler feed water heating system. Part of the electricity that is generated is also fed to the post combustion capture plant where it will be used to power unit operations therein.

Abstract: A method for recovering oil by injecting oxygen into an underground oil formation where in-situ combustion occurs. The oxygen may be co-injected with additional components to assist in the recovery of the oil, or it may be injected after the injection of the additional components sequentially. The recovered oil may be used in an integrated process above ground for the combustion and generation of power.

Abstract: A method for operating a vehicle that provides refrigeration and is powered by an engine for burning liquefied natural gas. The vehicle contains on-board storage tanks for liquefied natural gas and liquid nitrogen. These two tanks are in thermal communication with each other and natural gas from the liquefied natural gas storage tank will periodically contact the liquid nitrogen and return as liquefied natural gas.

Abstract: A method for the production of a CO2 rich stream for sequestration in depleted oil sand reservoirs. The method comprises the steps of: a) purging non-condensable gases from an oil sand reservoir with steam; b) contacting a gaseous oxidant stream comprising oxygen, carbon dioxide, and steam with bitumen in an oil reservoir; c) separating the production well product from the oil sand reservoir into bitumen, water, sand and fuel gas streams; d) producing a carbon dioxide rich gas by combustion of the said fuel gas with substantially pure oxygen; e) utilizing substantially pure oxygen and a portion of said carbon dioxide rich gas as constituents of said gaseous oxidant stream; and f) sequestering a balance of said carbon dioxide rich gas into a depleted oil said reservoir.

Abstract: A method for the production of a CO2 rich stream for sequestration in depleted oil sand reservoirs and the production and use of a CO2 rich oxidant for in situ bitumen production from oil sand reservoirs.

Abstract: The present invention provides for a process of separating hydrocarbons such as short chain paraffins and olefins from non-hydrocarbon gases using short-cycle time concentration swing adsorption processes. The hydrocarbons are adsorbed from the gaseous stream on highly siliceous nanoporous materials, e.g., such as of aluminum-deficient faujasite-type zeolites, by way of a pressure, vacuum or temperature swing adsorption, then desorbed from the adsorbent in the presence of steam. Optionally, the steam is desorbed from the adsorbent through the use of air or inert gas or a recycle of the waste gas effluent. The invention also provides for a new method of preparing novel shapes such as beads and monolithic structures of the highly sileceous nanoporous materials.