18results about "Direct carbon-dioxide mitigation" patented technology

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

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.

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 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.

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 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.

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.

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.

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.