Abstract: A system and method for recovering carbon dioxide from a stream of gas using an absorption unit configured to receive the stream of gas and a stream of liquid absorbent. The gas includes carbon dioxide and vaporized water, and the liquid absorbent is chemically reactive with the carbon dioxide to form a solidified carbon dioxide-rich absorbent material. The gas and the liquid absorbent are mixed in the absorption unit such that a slurry that includes the solidified carbon dioxide-rich absorbent material and condensed water is formed therein. The system and method may also employ a transport mechanism coupled in communication with the absorption unit, wherein the transport mechanism is configured to channel the slurry downstream from the absorption unit.

Abstract: A system and method for recovering carbon dioxide from a stream of gas using an absorption unit configured to receive the stream of gas and a stream of liquid absorbent. The gas includes carbon dioxide and vaporized water, and the liquid absorbent is chemically reactive with the carbon dioxide to form a solidified carbon dioxide-rich absorbent material. The gas and the liquid absorbent are mixed in the absorption unit such that a slurry that includes the solidified carbon dioxide-rich absorbent material and condensed water is formed therein. The system and method may also employ a transport mechanism coupled in communication with the absorption unit, wherein the transport mechanism is configured to channel the slurry downstream from the absorption unit.

Abstract: A system for use in recovering carbon dioxide from a stream of gas includes an absorption unit configured to receive the stream of gas and a stream of liquid absorbent. The gas includes carbon dioxide and vaporized water, and the liquid absorbent is chemically reactive with the carbon dioxide to form a solidified carbon dioxide-rich absorbent material. The gas and the liquid absorbent are mixed in the absorption unit such that a slurry that includes the solidified carbon dioxide-rich absorbent material and condensed water is formed therein. The system also includes a transport mechanism coupled in communication with the absorption unit, wherein the transport mechanism is configured to channel the slurry downstream from the absorption unit.

Abstract: An apparatus and method for preparing and delivering a fluid mixture. The apparatus includes a high pressure differential solids feeder assembly and a pressurized mixing apparatus. The feeder assembly is coupled to a proppant storage vessel at ambient pressure and receives a continuous unpressurized proppant output flow from the proppant storage vessel. The feeder assembly is configured to output a continuous pressurized proppant output flow of sufficient mass to achieve continuous operation of the apparatus in an uninterrupted episode for an individual fracture stage. The pressurized mixing apparatus is coupled to the feeder assembly and in fluidic communication with the continuous pressurized proppant output flow and a continuous pressurized fracturing fluid flow.

Abstract: A system for discharging dry solids into high pressure environments is disclosed. The system includes a hopper, a feeder device coupled to the hopper, and a discharge device disposed downstream relative to the feeder device. The feeder device includes a rotatable casing including a plurality of pockets, a stationary core disposed within the rotatable casing, and a plurality of valves. Each pocket includes an inlet, an outlet, and a plurality of first through-holes. The stationary core includes a plurality of channels, where each channel includes a plurality of second through-holes. Each valve is disposed at the outlet of a corresponding pocket from the plurality of pockets. The discharge device includes a valve actuator configured to actuate each valve.

Abstract: A method for separating carbon dioxide (CO2) from a gas stream is provided. The method includes reacting at least a portion of CO2 in the gas stream with a plurality of liquid sorbent particles to form a plurality of solid adduct particles and a first CO2-lean gas stream; the solid adduct particles entrained in the first CO2-lean gas stream to form an entrained gas stream. The method includes separating at least a portion of the plurality of solid adduct particles from the entrained gas stream in a separation unit to form an adduct stream and a second CO2-lean gas stream. The method further includes heating at least a portion of the adduct stream in a desorption unit to form a CO2 stream and a regenerated liquid sorbent stream. A system for separating CO2 from a gas stream is also provided.

Abstract: A system for discharging dry solids into high pressure environments is disclosed. The system includes a hopper, a feeder device coupled to the hopper, and a discharge device disposed downstream relative to the feeder device. The feeder device includes a rotatable casing including a plurality of pockets, a stationary core disposed within the rotatable casing, and a plurality of valves. Each pocket includes an inlet, an outlet, and a plurality of first through-holes. The stationary core includes a plurality of channels, where each channel includes a plurality of second through-holes. Each valve is disposed at the outlet of a corresponding pocket from the plurality of pockets. The discharge device includes a valve actuator configured to actuate each valve.

Abstract: Systems and methods for separating carbon dioxide (CO2) from a gas stream are provided. The system includes a reaction chamber 20, a pressurization unit 30, and a desorption unit 40. The reaction chamber 20 is configured to receive a liquid sorbent stream 14 and the gas stream 12, to react at least a portion of CO2 in the gas stream 12 with the liquid sorbent and form an adduct stream 22. The pressurization unit 30 is configured to contact the adduct stream 22 with a pressurized CO2 stream 24 and form a pressurized adduct stream 32 that includes a liquid CO2 adduct. The desorption unit 40 is in fluid communication with the pressurization unit 30, and is configured to decompose at least a portion of the liquid CO2 adduct to form a CO2 stream 42 and a regenerated liquid sorbent stream 44.

Abstract: A system for use in recovering carbon dioxide from a stream of gas includes an absorption unit configured to receive the stream of gas and a stream of liquid absorbent. The gas includes carbon dioxide and vaporized water, and the liquid absorbent is chemically reactive with the carbon dioxide to form a solidified carbon dioxide-rich absorbent material. The gas and the liquid absorbent are mixed in the absorption unit such that a slurry that includes the solidified carbon dioxide-rich absorbent material and condensed water is formed therein. The system also includes a transport mechanism coupled in communication with the absorption unit, wherein the transport mechanism is configured to channel the slurry downstream from the absorption unit.

Abstract: Systems and methods for separating carbon dioxide (CO2) from a gas stream are provided. The system includes a reaction chamber 20, a pressurization unit 30, and a desorption unit 40. The reaction chamber 20 is configured to receive a liquid sorbent stream 14 and the gas stream 12, to react at least a portion of CO2 in the gas stream 12 with the liquid sorbent and form an adduct stream 22. The pressurization unit 30 is configured to contact the adduct stream 22 with a pressurized CO2 stream 24 and form a pressurized adduct stream 32 that includes a liquid CO2 adduct. The desorption unit 40 is in fluid communication with the pressurization unit 30, and is configured to decompose at least a portion of the liquid CO2 adduct to form a CO2 stream 42 and a regenerated liquid sorbent stream 44.

Abstract: A system for discharging dry solids into high pressure environments is disclosed. The system includes a hopper, a feeder device coupled to the hopper, and a discharge device disposed downstream relative to the feeder device. The feeder device includes a rotatable casing including a plurality of pockets, a stationary core disposed within the rotatable casing, and a plurality of valves. Each pocket includes an inlet, an outlet, and a plurality of first through-holes. The stationary core includes a plurality of channels, where each channel includes a plurality of second through-holes. Each valve is disposed at the outlet of a corresponding pocket from the plurality of pockets. The discharge device includes a valve actuator configured to actuate each valve.

Abstract: A system includes a capture system, a storage system, and a return system. The capture system is configured to receive an outlet gas from a gasification system and to extract a component gas of the outlet gas using a regenerable material during a start-up operation of the gasification system. The storage system is coupled to the capture system and is configured to store the component gas extracted by the capture system. The return system is configured to return the component gas from the storage system to the gasification system during a normal operation of the gasification system.

Abstract: A method for separating carbon dioxide (CO2) from a gas stream is provided. The method includes reacting at least a portion of CO2 in the gas stream with a plurality of liquid sorbent particles to form a plurality of solid adduct particles and a first CO2-lean gas stream; the solid adduct particles entrained in the first CO2-lean gas stream to form an entrained gas stream. The method includes separating at least a portion of the plurality of solid adduct particles from the entrained gas stream in a separation unit to form an adduct stream and a second CO2-lean gas stream. The method further includes heating at least a portion of the adduct stream in a desorption unit to form a CO2 stream and a regenerated liquid sorbent stream. A system for separating CO2 from a gas stream is also provided.

Abstract: A method for separating carbon dioxide (CO2) from a gas stream is provided. The method includes reacting at least a portion of CO2 in the gas stream with a plurality of liquid sorbent particles to form a plurality of solid adduct particles and a first CO2-lean gas stream; the solid adduct particles entrained in the first CO2-lean gas stream to form an entrained gas stream. The method includes separating at least a portion of the plurality of solid adduct particles from the entrained gas stream in a separation unit to form an adduct stream and a second CO2-lean gas stream. The method further includes heating at least a portion of the adduct stream in a desorption unit to form a CO2 stream and a regenerated liquid sorbent stream. A system for separating CO2 from a gas stream is also provided.

Abstract: A system for treatment of a gaseous medium, comprises an extruder having a barrel. The extruder further comprises a first inlet port, a second inlet port, and a plurality of outlet ports coupled to the barrel. The first inlet port is configured for feeding a lean sorbent, the second inlet port is configured for feeding a gaseous medium, and the plurality of outlet ports are configured for releasing a plurality of components removed from the gaseous medium. Further, the extruder comprises a plurality of helical elements coupled to a plurality of kneading elements, mounted on a shaft, and disposed within the barrel. The barrel and the plurality of helical and kneading elements together form an absorption unit and a desorption unit. The first and second inlet ports are formed in the absorption unit and the plurality of outlet ports are formed in the absorption and desorption units.

Abstract: An apparatus and method for preparing and delivering a fluid mixture. The apparatus including a high pressure differential solids feeder assembly and a pressurized mixing apparatus. The feeder assembly is coupled to a proppant storage vessel at ambient pressure and receives a continuous unpressurized proppant output flow from the proppant storage vessel. The feeder assembly is configured to output a continuous pressurized proppant output flow of sufficient mass to achieve continuous operation of the apparatus in an uninterrupted episode for an individual fracture stage. The pressurized mixing apparatus is coupled to the feeder assembly and in fluidic communication with the continuous pressurized proppant output flow and a continuous pressurized fracturing fluid flow.

Abstract: A system for treatment of a gaseous medium, comprises an extruder having a barrel. The extruder further comprises a first inlet port, a second inlet port, and a plurality of outlet ports coupled to the barrel. The first inlet port is configured for feeding a lean sorbent, the second inlet port is configured for feeding a gaseous medium, and the plurality of outlet ports are configured for releasing a plurality of components removed from the gaseous medium. Further, the extruder comprises a plurality of helical elements coupled to a plurality of kneading elements, mounted on a shaft, and disposed within the barrel. The barrel and the plurality of helical and kneading elements together form an absorption unit and a desorption unit. The first and second inlet ports are formed in the absorption unit and the plurality of outlet ports are formed in the absorption and desorption units.

Abstract: An apparatus and method for delivering a fluid mixture using direct injection to a mixing apparatus. The apparatus including a proppant storage vessel configured to contain therein a proppant material and output a proppant output flow at ambient pressure to a solid feed pump assembly. The apparatus further including a fracturing fluid storage vessel configured to contain therein a fracturing fluid and output a fracturing fluid output flow at a fracture fluid blending pressure. The solid feed pump assembly configured to output to a mixing apparatus, a proppant output flow at the fracture fluid blending pressure. The mixing apparatus configured to output a fluid mixture of the proppant and the fracturing fluid at the fracture fluid blending pressure. The mixing apparatus coupled to a high pressure pump assembly and configured to deliver the fluid mixture therein to a downstream component at an injection pressure.

Abstract: A method for recovering carbon dioxide (CO2) from a gas stream is disclosed. The method includes the step of reacting CO2 in the gas stream with fine droplets of a liquid absorbent, so as to form a solid material in which the CO2 is bound. The solid material is then input to a transporting desorption unit, where a decarboxylation reaction takes place, to release substantially pure CO2 gas. The CO2 gas can then be collected and used or transported in any desired way. The transporting desorption unit includes an upstream section at atmospheric pressure and a downstream section at a pressure greater than atmospheric pressure, wherein the upstream section and the downstream section are separated by a hydraulic dynamic seal. A related apparatus including the transporting desorption unit for recovering carbon dioxide (CO2) from a gas stream is also described herein.

Abstract: In one embodiment, a system for recovering carbon dioxide can comprises: a reaction chamber having a first pressure and comprising a gas stream inlet; a phase-changing liquid sorbent, wherein the liquid sorbent is chemical reactive with carbon dioxide to form a solid material; a regeneration unit to decompose the solid material to released carbon dioxide gas and regenerated liquid sorbent; and a dry transport mechanism configured to transport the solid material from the reaction chamber at the first pressure to the regeneration unit at a second higher pressure.