31results about "Direct carbon-dioxide mitigation" patented technology

Systems and methods include a method for generating optimum de-carbonization investment plans. An optimization objective is determined for reducing carbon dioxide (CO2) emissions of an organization. A CO2 emissions baseline for the organization is determined. An optimum de-carbonization investment plan is generated for the organization using the optimization objective and the CO2 emissions baseline for the organization. The optimum de-carbonization investment plan is configured to minimize life cycle costs of the organization while meeting emission reduction targets of the organization.

The present disclosure relates to a tubular supply device (1) for supplying gases to a combustion chamber in a heat-generating plant. The supply device comprises a tube (2) in the form of a straight lance and having an outer lateral wall (3) for extending into the combustion chamber from a side wall. The supply device comprises a plurality of nozzle arrangements (4) for expelling the gases into the combustion chamber. Each nozzle arrangement comprises an inner nozzle (5) connectable to an oxygen source and arranged for supplying pure oxygen from said oxygen source into the combustion chamber. Each nozzle arrangement also comprises an outer nozzle (6) connectable in a flue gas recirculation loop of the plant and arranged for supplying flue gas flowing in said flue gas recirculation loop into the combustion chamber.

A power plant includes a gas turbine engine, which includes a compressor and a turbine. The compressor includes a compressor outlet. The turbine discharges a first exhaust gas stream therefrom. A heat recovery steam generator extracts heat from the first exhaust gas stream and discharges a second exhaust gas stream therefrom. A cooler cools the second exhaust gas stream, thereby defining a cooled exhaust gas stream, and discharges the cooled exhaust gas stream. An exhaust gas recirculation line channels a first portion of the cooled exhaust gas stream towards the compressor. A recirculation compressor selectively pressurizes the first portion of the cooled exhaust gas stream for discharge to the compressor outlet.

Systems and / or methods are provided for the capture of carbon dioxide from flue gas generated within a building.

To provide methods, apparatuses, and systems related to electrochemical capture of Lewis acid gases.SOLUTION: Methods, apparatuses, and systems related to electrochemical capture of Lewis acid gases from fluid mixtures are generally described. Certain embodiments are related to electrochemical methods involving selectively removing a first Lewis acid gas from a fluid mixture containing multiple types of Lewis acid gases (e.g., a first Lewis acid gas and a second Lewis acid gas). Certain embodiments are related to electrochemical systems comprising certain types of electro active species having certain redox states in which the species is capable of binding a first Lewis acid gas but for which binding with a second Lewis acid gas is thermodynamically and / or kinetically unfavorable. The methods, apparatuses, and systems described herein may be useful in carbon capture and pollution mitigation applications.SELECTED DRAWING: None

In a method for physical and thermochemical treatment of biomass, the biomass moisture content is reduced in a dryer and ammonia (NH3) is also released from the biomass during drying. The dried biomass is then either pyrolyzed in a pyrolysis reactor and the pyrolysis gas is forwarded to and combusted in a combustion device to form flue gas, or is combusted in a combustion facility unit to form flue gas. In either case the flue gas is fed to a mixer. Oxygen (O2) is metered to the flue gas in the mixer and is fed directly to the dryer as drying gas. As the drying gas passes through the dryer, the sulfur dioxide (SO2) contained in the drying gas and / or the sulfur trioxide (SO3) chemically reacts with the ammonia (NH3) to form ammonium sulfite ((NH4)2SO3) and / or ammonium sulfate ((NH4)2SO4). Also a treatment facility physically and thermochemically treats the biomass.

To provide methods, apparatuses, and systems related to electrochemical capture of Lewis acid gases.SOLUTION: Methods, apparatuses, and systems related to electrochemical capture of Lewis acid gases from fluid mixtures are generally described. Certain embodiments are related to electrochemical methods involving selectively removing a first Lewis acid gas from a fluid mixture containing multiple types of Lewis acid gases (e.g., a first Lewis acid gas and a second Lewis acid gas). Certain embodiments are related to electrochemical systems comprising certain types of electro active species having certain redox states in which the species is capable of binding a first Lewis acid gas but for which binding with a second Lewis acid gas is thermodynamically and / or kinetically unfavorable. The methods, apparatuses, and systems described herein may be useful in carbon capture and pollution mitigation applications.SELECTED DRAWING: None

The present invention provides a method for supplying oxygen-rich gas to an oxygen-consuming step, which comprises supplying an anode-side feed gas containing CO2 to the anode side of a solid oxide electrolysis cell to generate oxygen-rich gas with a low nitrogen content, and generating oxygen on the anode side of the solid oxide electrolysis cell. In this manner, an anode-side product gas containing at least a portion of the oxygen-rich gas is formed. The oxygen-rich gas has a low nitrogen content, and the temperature of the oxygen-rich gas exiting the solid oxide electrolysis cell is between 600 and 1000°C. This method has several advantages, primarily in terms of energy conservation.

Sweep-based gas separation processes for reducing carbon dioxide emissions from gas-fired power plants. The invention involves at least two compression steps, a combustion step, a carbon dioxide capture step, a power generate step, and a sweep-based membrane separation step. One of the compression steps is used to produce a low-pressure, low-temperature compressed stream that is sent for treatment in the carbon dioxide capture step, thereby avoiding the need to expend large amounts of energy to cool an otherwise hot compressed stream from a typical compressor that produces a high-pressure stream, usually at 20-30 bar or more.

The invention is a CO2 capture system comprising the following features: - a CO2 rich exhaust gas (6g) from an external first source (6s) to the inlet (6) of a compressor (2); and a first CO2 rich gas (6r) compressed at high pressure (P) reaches a manifold (8) to one or more outlets (5) of a housing (10) enclosing at least part of a combustion chamber (11) having a wall (11w), - wherein the combustion chamber (11) comprises a burner (13) arranged to combust fuel (14f) and compressed air (15c) supplied from a fuel line (14) and an air supply pipe (15) respectively at high pressure (P) to form a second CO2 rich gas (15r), - wherein a slit (12) is provided in the wall (11w) in the combustion chamber (11) for the compressed CO2 rich gas (6r) to enter to mix with the other CO2 rich gas (15r) formed in the combustion chamber (11) and cool to a third CO2 rich exhaust gas (60r); - a heat exchanger (16) arranged to operate at high pressure (P) and to exchange heat from the hot CO2 rich exhaust gas (60r) from the combustion chamber (11) with a returning CO2 lean exhaust gas (60L) from a CO2 extraction device (100) mainly at high pressure (P), - wherein the returning, now heated, CO2 lean exhaust gas (60L) is returned via a manifold (9) to an expander (3) and discharged via an outlet (7), the expander driving the compressor (2) and the CO2 extraction device (100).

A system for reducing carbon dioxide emissions from a flue gas generated via combusting a fossil fuel is provided. The system includes a carbonator and a classifier. The carbonator is configured to receive the flue gas and carbon absorbing particles. The classifier is fluidly connected to the carbonator and configured to receive a mixture that includes heat-transferring particles and the carbon absorbing particles. The mixture is fluidized within the classifier via the flue gas at a velocity such that the flue gas entrains and transports the carbon absorbing particles to the carbonator while the heat-transferring particles are not entrained nor transported to the carbonator.

A method and a plant for capturing CO2 from an incoming flue gas. The flue gas can be exhaust gas from coal and gas fired power plants, cement factories or refineries. The incoming exhaust gas is cooled, mixed with air and compressed, and thereafter introduced into a combustion chamber together with gas and / or liquid fuel. Part of the combustion is achieved by separate burners with cooling / combustion air feed with a volume equal to the volume of CO2 captured. Said burners will elevate the temperature in the combustion chamber allowing combustion of exhaust gas with low oxygen content. CO2 is captured at high partial pressure before expansion by the gas turbine to produce power and generate steam in the heat recovery unit. The gas turbine will operate with high efficiency close to design parameters with respect to inlet temperature, pressure and flow.

A power plant includes a gas turbine engine, which includes a compressor and a turbine. The compressor includes a compressor outlet. The turbine discharges a first exhaust gas stream therefrom. A heat recovery steam generator extracts heat from the first exhaust gas stream and discharges a second exhaust gas stream therefrom. A cooler cools the second exhaust gas stream, thereby defining a cooled exhaust gas stream, and discharges the cooled exhaust gas stream. An exhaust gas recirculation line channels a first portion of the cooled exhaust gas stream towards the compressor. A recirculation compressor selectively pressurizes the first portion of the cooled exhaust gas stream for discharge to the compressor outlet.

To provide a synthetic material production system that eliminates the need for a carbon dioxide recovery unit dedicated to a synthesis plant and can reduce the facility cost, and to provide a carbon dioxide processing system.SOLUTION: A synthetic material production system includes: a synthesis plant in which by synthesizing a hydrogen-containing gas and a carbon dioxide a synthetic material is produced; and a carbon dioxide feed line for feeding the carbon dioxide from a recovery and storage plant that includes a recovery unit for recovering the carbon dioxide from a carbon dioxide-containing gas, and a press-in facility for immobilizing the carbon dioxide recovered in the stratum, to the synthesis plant.SELECTED DRAWING: Figure 1

A method for capturing CO2 from a flue gas from a district heating plant fired on a carbonaceous fuel, where the flue gas is compressed and thereafter cooled before the flue gas is introduced into an absorber (16), where the flue gas is brought in countercurrent flow to an aqueous CO2 absorbent solution introduced into the absorber (16), to give a lean flue gas that is withdrawn from the absorber (16), reheated against incoming compressed flue gas, and thereafter expanded and released into the atmosphere, where the rich absorbent is introduced into a regenerator (30) and stripped to release CO2, withdrawing the lean absorbent from the regenerator (30) and introduction of the lean absorbent into the absorber (16), where the flow of lean absorbent is split in two, a first flow which is introduced at the top of an absorbent packing (17) in the absorber (16), and a second flow which is cooled against a heat fluid received from the district heating plant an returned thereto, and where the thus cooled absorbent is introduced at the top of a cooler packing (21) at the top of the absorber for cooling and drying of the lean flue gas before being reheated against incoming compressed flue gas, and thereafter expanded and released into the surrounding, and a plant for performing the method are described.

An air pollution control apparatus according to an embodiment of the present invention includes: a stack (15) that discharges flue gas discharged from a boiler outside; a blower (13) that is provided downstream of the stack (15) and draws in the flue gas; and a CO2 recovering apparatus (22) that recovers CO2 in the flue gas drawn in by the blower (13). The stack (15) includes a controlling unit that suppresses release of the flue gas outside from the stack (15) and suppresses inflow of atmosphere to the stack (15), and the controlling unit is an opening / closing unit (52) that is provided at an inlet (36) of the stack (15) through which the flue gas is fed into the stack (15) and that is openable only inward of the stack (15) .

The invention relates to a method for the physical and thermochemical treatment of biomass (5), wherein the biomass (5) is reduced in its water content in a drying device (4) and additionally ammonia (NH3) is released from the biomass (5) during drying. Subsequently the dried biomass (5) is pyrolyzed in a pyrolysis reactor (2) and the pyrolysis gas is further conducted to a combustion device (3) and combusted there to flue gas, or combusted to flue gas in a combustion plant unit (17), which flue gas is introduced into a mixing device (9), respectively. In the mixing device (9) oxygen (O2) is metered into the flue gas and introduced as drying gas directly into the drying device (4). While the drying gas is conducted through the drying device (4), sulfur dioxide (SO2) and / or sulfur trioxide (SO3) contained in the drying gas chemically reacts with ammonia (NH3) to form ammonium sulfite ((NH4)2SO3) and / or ammonium sulfate ((NH4)2SO4). Additionally, the invention relates to a treatment device (1) for the physical and thermochemical treatment of biomass (5).

The invention relates to an oxy-combustion system comprising: a furnace; an oxy-combustion burner; a mill for receiving a fuel and providing it to the oxy-combustion burner; an air heater for receiving first flue gas from the furnace and discharging it as second flue gas; a heat exchanger for receiving cold feed water, heating the cold feed water by the second flue gas to produce hot feed water, and discharging the second flue gas as third flue gas; an electrostatic precipitator for receiving the third flue gas and discharging it as fourth flue gas; and a direct contact cooler polishing scrubber for receiving the fourth flue gas and discharging it as cooled flue gas. The cooled flue gas provides a first cooled flue gas recirculation supply stream for providing cooled flue gas to the air heater. The invention also relates to a method of using the system to produce a flue gas stream for carbon dioxide processing.

CO2 capture processes and systems can be improved by recovering thermal energy from particular streams for reuse in the stripping stage. Thermal energy can be recovered from the overhead gas stream of a stripper operated under vacuum pressure conditions, and thermal energy can also be recovered from a flue gas. A heat transfer circuit can be implemented for recovering thermal energy by indirect heat transfer from the overhead gas stream, a flue gas stream, and / or other streams to a heat transfer fluid. The heat transfer circuit can include multiple heat recovery loops arranged in parallel and the heated fluid can be supplied through a reboiler of the stripper to heat the solution in the reboiler.

A capture system for offshore carbon dioxide capture and a method for offshore carbon dioxide capture are described. A capture system for offshore carbon dioxide capture, the system comprising: a pressurised flue gas source configured to provide a pressurised flue gas 101; a solvent source configured to provide a liquid solvent; and a two-phase atomising nozzle in fluid communication with the pressurised flue gas source and the solvent source; wherein the two-phase atomising nozzle is configured for two-phase flow of a mixture of the pressurised flue gas and the liquid solvent in order to generate an atomised solvent spray of the liquid solvent.

A system that integrates a power production system and an energy storage system represented by gas liquefaction systems is provided.

A system comprising a collocated thermal plant, water source, CO2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

The present disclosure relates to systems and methods for enabling high flame temperature oxy-combustion that is cost effective to capture CO2. Part of the presently disclosed subject matter includes an annular shrouded burner that utilizes a supply of undiluted oxygen and minimal flue gas recirculation to produce high flame temperatures to maximize efficiency. The annular shrouded burner can deliver oxygen into a combustion zone where mixing of the oxygen and fuel stream occurs. Flue gas recirculated from the outlet of the combustion system serves a dual purpose: to deliver coal into the reaction zone, and to provide localized cooling and prevent high incident heat flux through a novel shroud cooling design. The annular shrouded burner can be configured to produce an axial jet flame that controls the oxygen and fuel mixing rate, thereby expanding the heat release. Oxygen and coal can be mixed at a ratio such that peak flame temperatures exceed 4,500°F (2,482°C), while adjusting the flow of recirculated flue gas to control the flame temperature and protect the burner assembly and near-burner surfaces.

The present disclosure is directed to systems and methods for high flame temperature oxycombustion that enables the capture of CO2 cost effectively. One part of the presently disclosed subject matter comprises an annular shroud burner which utilizes a supply of undiluted oxygen and minimal flue gas recycle to generate a high flame temperature to maximize efficiency. The annular shroud burner may deliver oxygen into a combustion zone where mixing of the oxygen and a stream of fuel occurs. Flue gas recycled from the exit of the combustion system serves the dual purpose of conveying the coal into the reaction zone, as well as providing local cooling and protection from high incident heat fluxes through the novel shroud cooling design. The annular shroud burner may be configured to produce an axial jet flame that controls the rate of mixing of oxygen and fuel, thereby extending the heat release. Oxygen and coal may be mixed in a ratio such that peak flame temperatures exceed 4,500°F (2,482°C) while the flow of recycled flue gas is regulated to control flame temperature and protect burner components and near-burner surfaces.

A CO2 capture system includes an intake for CO2-rich exhaust gas to a compressor and one or more outlets for compressed, first CO2-rich gas to a manifold to a shell enclosing parts of a combustion chamber. The combustion chamber has burners to burn fuel and compressed air from a fuel line and an air supply pipe, to form a second, CO2 rich gas.The wall in the combustion chamber has slits to let in the compressed CO2-rich gas to mix with and cool the other CO2-rich gas formed in the combustion chamber of a third CO2-rich exhaust gas. A heat exchanger operates under high pressure and heat exchanges the third, hot CO2-rich exhaust gas from the combustion chamber with returning CO2-poor exhaust gas from a CO2 extraction plant. The returned, heated CO2-poor exhaust gas is led back to an expander driving the compressor and the CO2 extraction plant.

To provide a CO2 recovery system that can recover and use CO2 near by a demander without performing long-distance transportation.SOLUTION: A CO2 recovery system comprises: a CO2 recovery mechanism having CO2 recovery means that recovers CO2 generated from CO2 generating means by a small-size power generator, which performs recovery operation; a CO2 demander terminal which has an input part to which demand information about CO2 is inputted by a CO2 demander and a transmitting part that transmits the demand information; and a demand information processing terminal that has a receiving part that receives the demand information, a calculating part that calculates recovery amounts of CO2 that are recovered by the CO2 recovery mechanism, on the basis of the demand information, and a transmitting part that transmits information on the calculated recovery amounts of CO2 to the CO2 recovery mechanism, where the CO2 recovery mechanism has a receiving part that receives the information on the recovery amounts of CO2 transmitted from the transmitting part of the demand information processing terminal, and performs CO2 recovery operation on the basis of the information on the recovery amounts of CO2 received by the receiving part.SELECTED DRAWING: Figure 1

A carbon capture system including a CO2-containing flue gas from any CO2 generation source connected to a first flue gas compressor of a gas turbine having a corresponding first turbine expander and a generator driven by the gas turbine, the gas turbine including a first burner and a second burner, the second burner utilizing at least a non-carbon fuel such as hydrogen (H2) or ammonia (NH3), thereby raising the temperature of the first relatively hot compressed CO2-lean flue gas to a second relatively hotter compressed CO2-lean flue gas that is supplied to the first expander.

Methods, devices, and systems related to the electrochemical capture of Lewis acid gases from fluid mixtures are generally described. Certain embodiments relate to electrochemical methods that include selectively removing a first Lewis acid gas from a fluid mixture containing multiple types of Lewis acid gases (e.g., a first Lewis acid gas and a second Lewis acid gas). Certain embodiments relate to electrochemical systems that include a specific type of electroactive species that can bind to a first Lewis acid gas but have a specific redox state in which binding with a second Lewis acid gas is thermodynamically and / or kinetically unfavorable. The methods, devices, and systems described herein can be useful in carbon capture and pollution abatement applications.

The present disclosure is directed to systems and methods for high flame temperature oxycombustion that enables the capture of CO2 cost effectively. One part of the presently disclosed subject matter comprises an annular shroud burner which utilizes a supply of undiluted oxygen and minimal flue gas recycle to generate a high flame temperature to maximize efficiency. The annular shroud burner may deliver oxygen into a combustion zone where mixing of the oxygen and a stream of fuel occurs. Flue gas recycled from the exit of the combustion system serves the dual purpose of conveying the coal into the reaction zone, as well as providing local cooling and protection from high incident heat fluxes through the novel shroud cooling design. The annular shroud burner may be configured to produce an axial jet flame that controls the rate of mixing of oxygen and fuel, thereby extending the heat release. Oxygen and coal may be mixed in a ratio such that peak flame temperatures exceed 4,500°F (2,482°C) while the flow of recycled flue gas is regulated to control flame temperature and protect burner components and near-burner surfaces.

The present disclosure is directed to systems and methods for high flame temperature oxy- combustion that enables the capture of CO2 cost effectively. One part of the presently disclosed subject matter comprises an annular shroud burner which utilizes a supply of undiluted oxygen and minimal flue gas recycle to generate a high flame temperature to maximize efficiency. The annular shroud burner may deliver oxygen into a combustion zone where mixing of the oxygen and a stream of fuel occurs. Flue gas recycled from the exit of the combustion system serves the dual purpose of conveying the coal into the reaction zone, as well as providing local cooling and protection from high incident heat fluxes through the novel shroud cooling design. The annular shroud burner may be configured to produce an axial jet flame that controls the rate of mixing of oxygen and fuel, thereby extending the heat release. Oxygen and coal may be mixed in a ratio such that peak flame temperatures exceed 4,500°F (2,482°C) while the flow of recycled flue gas is regulated to control flame temperature and protect burner components and near-burner surfaces.