15 results about "Gas–liquid contactor" patented technology

A direct air capture (DAC) system for capturing carbon dioxide (CO2) from a dilute gas source includes a gas-liquid contactor subsystem and a wash water regeneration subsystem. The gas-liquid contactor subsystem includes a capture section, a wash section, and at least one fan to produce a CO2-rich capture solution in the capture section and a used wash water stream in the wash section. The wash water regeneration subsystem is in fluid communication with the at least one gas-liquid contactor subsystem. The wash water regeneration subsystem receives at least a portion of the used wash water stream, regenerates the wash water stream, and flows the regenerated wash water stream to the wash section. The DAC system can include a capture solution regeneration subsystem receiving at least a portion of the CO2-rich capture solution, regenerate the CO2-rich capture solution, and flow the regenerated CO2 capture solution to the capture section.

A gas-liquid contactor includes at least one packing section, a liquid distribution system, one or more liquid collection devices, and a fan. The at least one packing section includes a plurality of packing supports. Each packing support is removably attached to at least one other packing support and includes a structure defining a bottom surface and a packing perimeter and a plurality of structured packings positioned on the bottom surface within the packing perimeter. The structure includes at least one first attachment and at least one second attachment. The liquid distribution system is configured to flow a carbon dioxide (CO2) capture solution through at least one packing section. The one or more liquid collection devices include a bottom basin positioned beneath the at least one packing section. The fan is operable to form a CO2 lean stream and flow the CO2 lean stream from the at least one packing section.

Disclosed herein is a method for reducing or preventing froth formation in a gas-liquid contactor. The method includes contacting a region of gas-liquid contact within a flow system of a device. The device includes at least one super wettable surface adapted to reduce or prevent froth formation at the region of the gas-liquid contact.

In a general aspect, a carbon dioxide (CO2) removal system uses geothermal energy. In some implementations, a method to remove CO2 gas from a gaseous feed includes directing a gaseous feed to interact with an alkaline capture solution in a first gas-liquid contactor. A first portion of CO2 from the gaseous feed dissolves into the alkaline capture solution to form a CO2-rich alkaline capture solution. Steam is generated using heat from a geothermal heat source, and the steam heats the CO2-rich alkaline capture solution in a second gas-liquid contactor. A second portion of the CO2 is separated from the CO2-rich alkaline capture solution in the second gas-liquid contactor to form a CO2-lean alkaline capture solution. The CO2-lean alkaline capture solution is directed to the first gas-liquid contactor.

To improve heat exchange capacity of a gas-liquid contactor.SOLUTION: A gas-liquid contactor includes: a first heat transfer pipe which has a tubular shape and forms a heat medium flow passage in an inside thereof so that a heat medium flows therethrough; a second heat transfer pipe which is arranged to be separated from the first heat transfer pipe in a vertical direction and a horizontal direction, has a tubular shape, and forms a heat medium flow passage in an inside thereof so that the heat medium flows therethrough; and a long first gas-liquid contact member. The first gas-liquid contact member is arranged to come into contact with an outer peripheral surface on a side opposite from an outer peripheral surface confronting the second heat transfer pipe of the first heat transfer pipe and to come into contact with an outer peripheral surface on a side opposite from an outer peripheral surface confronting the first heat transfer pipe of the second heat transfer pipe.SELECTED DRAWING: Figure 2

A variety of methods and systems are disclosed, including, in one example, a method of direct air capture including: introducing an air stream comprising carbon dioxide into gas-liquid contactor; contacting the air stream with a treatment fluid comprising a surfactant, wherein the carbon dioxide is at least partially soluble in the treatment fluid, and wherein the carbon dioxide reacts with the treatment fluid to form a reaction product; performing an ion exchange reaction between the reaction product and a base in the presence of the surfactant to form an ion exchange product; and precipitating the ion exchange product to form a precipitate.

The invention provides a multistage bubbling tower type gas-liquid contactor tritium extraction device and method, which is used for extracting tritium from a helium-cooled lithium-lead proliferation cladding of a superconducting magnetic confinement fusion reactor, and comprises a multistage series mechanism arranged at an outlet of the helium-cooled lithium-lead proliferation cladding and used for extracting tritium dissolved in eutectic lithium-lead alloy through carrier gas, the multi-stage series mechanism is formed by sequentially connecting multiple stages of GLC units in series, the height of each stage of GLC unit is decreased stage by stage, and the stage number of the multi-stage series mechanism is larger than or equal to thirteen. All the stages of GLC units are communicated through connecting pipes arranged at different heights, and all the stages of GLC units are arranged in the direction perpendicular to the horizontal plane, so that the problem that the liquid levels of all the GLC units are not uniform in the operation process is solved, and the overall operation stability and safety of the device are improved. Through verification, the tritium extraction efficiency of the thirteen-stage series connection mechanism can reach 90% or above, and the tritium self-sustaining operation efficiency requirement of the magnetic confinement fusion reactor can be met.

The utility model discloses a coke oven gas desulfurization device, which relates to the technical field of absorption towers and comprises an absorption tower main body, a gas-liquid contactor is arranged in the absorption tower main body, a gas inlet, a liquid inlet, a water outlet and a manhole are arranged on the side surface of the absorption tower main body, and a gas outlet is arranged at the top of the absorption tower main body. The top of the inner end face of the absorption tower body is provided with a demister, the gas-liquid contactor comprises an intercepting plate and a gas channel cover, gas holes are evenly formed in the upper end face of the gas-liquid contactor, and the gas channel cover is installed at the upper ends of the gas holes and slidably connected with the intercepting plate. Fixed plates fixedly connected are arranged between the intercepting plate and the absorption tower, overflow runners are formed between the adjacent fixed plates, and limiting flanges are arranged on the upper end faces of the air holes. The device disclosed by the utility model has the advantages of high-efficiency gas-liquid contact, reduction of adsorption liquid consumption and prevention of shutdown suck-back, and solves the problems of low desulfurization efficiency, high operation cost and poor equipment stability in the traditional method.

This application relates to the field of chemical production technology and discloses a novel ammonium bicarbonate production system for carbon emission reduction and resource utilization. The system includes a carbon capture unit, an ammonia recovery unit, a low-temperature ammonia carbonization reactor, a centrifuge, a fluidized bed dryer, and a tail gas treatment unit connected in sequence. In this novel ammonium bicarbonate production system for carbon emission reduction and resource utilization, industrial waste gas (CO₂ concentration 10%-20%) enters a cyclone gas-liquid contactor, where it comes into countercurrent contact with amine liquid under the action of vortex plates. The CO₂ absorption rate is >95%, thus ensuring the sustainability of the raw material. The ammonia synthesis tail gas (NH₃ concentration 5%-8%) is cooled to -15°C by a condenser. After liquid ammonia recovery, the remaining gas enters an ammonia stripping tower for deep concentration, with an NH₃ recovery rate ≥98%, thus enabling efficient resource utilization. Unreacted tail gas is treated by a catalytic oxidation device, where NH₃ is oxidized to N₂ and H₂O under the action of a palladium catalyst. The emission concentration is controlled in real time to <10ppm by an online monitoring instrument, thus achieving full environmental compliance.

A direct air capture system for capturing carbon dioxide (CO2) from atmospheric air includes at least one contactor wall, a liquid distribution system, and a regeneration system in fluid communication with the liquid distribution system. The at least one contactor wall includes a plurality of gas-liquid contactors positioned side by side. Each gas-liquid contactor of the plurality of gas-liquid contactors includes a housing, at least one inlet, at least one outlet, at least one packing section disposed between the at least one inlet and the at least one outlet, and a fan. The liquid distribution system includes at least one liquid collection device. The at least one liquid collection device includes a lower liquid collector that includes a floor positioned beneath the packing sections of the plurality of gas-liquid contactors, and a plurality of walls extending upwardly from the floor.

This invention discloses a miniaturized experimental loop for liquid lithium-lead hydrogen isotope injection and extraction, belonging to the field of nuclear fusion reactor blanket experimental technology. It comprises two main modules: a liquid lithium-lead loop and a gas path. The liquid lithium-lead loop uses a sealed pipeline connected in series with a lithium-lead storage tank; the gas path includes hydrogen and argon cylinders, a vacuum pump, and a pressure reducing valve to achieve quantitative hydrogen isotope injection and loop purging pressurization. The experimental section can be equipped with extraction components based on three mainstream technical routes: vacuum permeation window, gas-liquid contactor, and vacuum sieve plate. Two hydrogen isotope sensors monitor the hydrogen concentration in the liquid lithium-lead and can calculate the extraction rate based on the difference. A flow meter is adapted to optimize the flow rate process, and the entire loop is equipped with heating and liquid level monitoring to effectively prevent lithium-lead solidification. This invention features a compact structure, stable operation, and strong adaptability, providing a reliable experimental platform for the verification and parameter optimization of advanced blanket tritium extraction technology in fusion reactors.

A method for stripping CO2 from a biocatalyst-containing CO2-rich absorption solution to produce a biocatalyst-containing CO2-lean absorption solution and a CO2-rich gas is provided. The method includes generating a stripping gas from a portion of the biocatalyst-containing CO2-lean absorption solution in a stripping gas generation unit, and contacting the biocatalyst-containing CO2-rich absorption solution with the stripping gas in a gas-liquid contactor to produce the CO2-lean absorption solution and the CO2-rich gas.

The invention relates to the technical field of synthesis of N-vinyl compounds, and discloses a micro-channel system for continuously synthesizing N-vinyl compounds, the micro-channel system comprises a low-pressure absorption unit and a high-pressure reaction unit which are communicated, the low-pressure absorption unit comprises a first pressure control device and a micro gas-liquid contactor, and the high-pressure reaction unit comprises a second pressure control device and a micro gas-liquid contactor. The micro gas-liquid contactor is used for enabling a liquid-phase raw material containing a nitrogen-containing cyclic compound to absorb acetylene to obtain a mixed solution, the high-pressure reaction unit comprises a second pressure control device and a micro-channel reactor, and the micro-channel reactor is used for enabling the mixed solution to react to obtain an N-vinyl compound. According to the invention, acetylene can be efficiently dissolved in a liquid-phase raw material, continuous production of multiple N-vinyl compounds is realized, and the process conversion efficiency is improved.

A direct air capture system for capturing carbon dioxide (CO2) from atmospheric air includes at least one contactor wall, a liquid distribution system, and a regeneration system in fluid communication with the liquid distribution system. The at least one contactor wall includes a plurality of gas-liquid contactors positioned side by side. Each gas-liquid contactor of the plurality of gas-liquid contactors includes a housing, at least one inlet, at least one outlet, at least one packing section disposed between the at least one inlet and the at least one outlet, and a fan. The liquid distribution system includes at least one liquid collection device. The at least one liquid collection device includes a lower liquid collector that includes a floor positioned beneath the packing sections of the plurality of gas-liquid contactors, and a plurality of walls extending upwardly from the floor.

A direct air capture (DAC) system for capturing carbon dioxide (CO2) from a dilute gas source includes a gas-liquid contactor subsystem and a wash water regeneration subsystem. The gas-liquid contactor subsystem includes a capture section, a wash section, and at least one fan to produce a CO2-rich capture solution in the capture section and a used wash water stream in the wash section. The wash water regeneration subsystem is in fluid communication with the at least one gas-liquid contactor subsystem. The wash water regeneration subsystem receives at least a portion of the used wash water stream, regenerates the wash water stream, and flows the regenerated wash water stream to the wash section. The DAC system can include a capture solution regeneration subsystem receiving at least a portion of the CO2-rich capture solution, regenerate the CO2-rich capture solution, and flow the regenerated CO2 capture solution to the capture section.