17 results about "Carbon dioxide binding" patented technology

Technologies and techniques for producing a sorption element for removing carbon dioxide from ambient air. The method includes providing a carbon dioxide-binding starting material and a binder, mixing them to form a homogeneous mixture, and either molding the mixture into a sorption structure or coating a support structure with the mixture. The sorption structure or coated support structure is then thermally treated to solidify and / or chemically activate the sorbent material. The disclosed method enables the production of highly efficient sorption elements with enhanced thermal and electrical conductivity, which improve adsorption and desorption processes. The disclosure also includes systems and apparatus configured to perform this method, offering reduced material usage, improved energy efficiency, and customizable geometries for diverse applications.

This invention relates to the field of polypropylene materials technology, and discloses a foamed polypropylene material, its preparation method, and its application in cables. The preparation method includes adding a flame retardant and polyethyleneimine-modified nano-silica to the foamed polypropylene material. On the one hand, the synergistic flame retardancy of phosphorus, nitrogen, and silicon enhances the flame retardant properties of the polypropylene material. On the other hand, the polyamine structure in polyethyleneimine can act as affinity sites to bind with the foaming gas carbon dioxide, promoting the uniform dispersion of carbon dioxide in the polypropylene system and forming a finer, more uniform cell structure. This improves the flame retardant properties, mechanical properties, and foaming properties of the foamed polypropylene material, making it suitable for use in cable materials.

To provide a system and method for manufacturing affordable carbon fiber insulation as an alternative to glass fiber insulation to improve energy efficiency in a building environment.SOLUTION: An embodiment disclosed herein relate to a system and a method for processing coal. A direct air capture system includes a voltage source and a coal-derived electroactive polymer electrically connected to the voltage source, in which applying voltage to the coal-derived electroactive polymer causes carbon dioxide to bind to the coal-derived electroactive polymer. The method for capturing carbon dioxide includes introducing the electroactive polymer into a gas stream containing carbon dioxide, applying voltage to the electroactive polymer to bind the carbon dioxide to the electroactive polymer, and reversing the polarity of the voltage applied to the electroactive polymer to release the carbon dioxide.SELECTED DRAWING: Figure 1

An apparatus (1) for capturing carbon dioxide (CO2) from a gas stream (2) containing carbon dioxide, comprising: an adsorption device (3) having a container (4) for containing an adsorbent (5) made of solid adsorbent particles (5a) for binding carbon dioxide (CO2) onto the adsorbent (5); a regeneration device (8) for separating bound carbon dioxide (CO2) from the adsorbent (5), the regeneration device (8) having an adsorbent inlet (9) to which the adsorbent outlet (7) is connected and an adsorbent outlet (10) to which the adsorbent inlet (6) is connected, a fixed bed regenerator (11) of the regeneration device (8), the invention relates to an adsorbent device (1) having a reservoir (12) for an adsorbent (5) and a fluid outlet (14) for withdrawing at least carbon dioxide (CO2) from the reservoir (12), a feed valve (15) being arranged in an adsorbent feed opening (9) and a discharge valve (16) being arranged in an adsorbent discharge opening (10), the feed and discharge valves (15, 16) are configured to selectively switch in a substantially gas-tight manner between an open state allowing the sorbent (5) to enter the reservoir (12) through the sorbent feed port (9) and exit the reservoir (12) through the sorbent discharge port (10), respectively, and a closed state allowing the sorbent (5) to enter the reservoir (12) through the sorbent discharge port (10), respectively. The closed state prevents the adsorbent (5) from entering the reservoir (12) through the adsorbent feed port (9) and flowing out of the reservoir (12) through the adsorbent discharge port (10); and a vacuum generating unit (17) for generating a vacuum inside the reservoir (12) in the closed state of the feed valve (15) and the discharge valve (16), respectively.

A wearable, skin adhesive blood gas monitoring device detects both oxygen and carbon dioxide for accommodating a potential inaccuracy in an oxygen level resulting from excessive carbon dioxide. Photoluminescent films in conjunction with a compact form-factor circuit provide a wearable and unobtrusive device that adheres directly to the epidermal surface for computation of blood gas levels based on transcutaneous and reflective properties of the blood gases. A wireless medium such as Bluetooth® enables communication to a standalone or portable device such as a smartphone or similar personal device having an application (app) for receiving the computed signals. Conditions such as hypercarbia, which tend to result in higher levels of carbaminohemoglobin, or hemoglobin bound to CO2 instead of oxygen, tend to compromise computed oxygen levels by interpreting the CO2-bound hemoglobin as oxygenated blood.

A method for measuring the carbon dioxide dynamic constraint burying amount in the carbon dioxide oil displacement burying process comprises the steps that based on a rock core displacement experiment, the porosity is calculated, and a to-be-measured rock core saturated with simulated oil is obtained; acquiring a CT value of the to-be-tested rock core saturated by the simulated oil, taking the CT value as an initial state, then performing carbon dioxide displacement, and acquiring CT values at different moments in the displacement process; drawing a relation curve of the carbon dioxide saturation and the relative permeability of the core to be measured; the on-way carbon dioxide relative permeability of the rock core to be measured at different moments is obtained; and calculating the carbon dioxide bound burying amount of the to-be-measured rock core at different moments. The method provided by the invention is combined with an on-line CT scanning technology, a relation curve of the rock core carbon dioxide saturation and the relative permeability can be accurately obtained, and then real-time dynamic observation of the carbon dioxide constraint retention condition in the carbon dioxide flooding embedding process is realized.

The invention relates to an apparatus for capturing carbon dioxide from atmospheric air, the apparatus comprising: - a container (1), - an air inlet (3) and an air outlet (8), - a layer of filling bodies (7) arranged in the container (1) between the air inlet (3) and the air outlet (8) and - a distribution device (10) for distributing carbon dioxide binding liquid (9) arranged between the air inlet (3) and the layer of filling bodies (7), wherein the container (1) has a bag-like shape made of a liquid impermeable, flexible lining (2) suspended in a scaffolding framework (15). The invention further relates to a method of manufacturing such an apparatus.

In an embodiment a method includes a) providing an aqueous solution of a carbon dioxide absorption agent, wherein the carbon dioxide absorption agent comprises cations of the 1st main group of the periodic table, b) passing an air flow containing carbon dioxide through the aqueous solution of method step a), wherein at least a part of the carbon dioxide from the air flow is bound to the carbon dioxide absorption agent and the air flow is depleted in carbon dioxide and c) introducing the aqueous solution of method step b) or an aqueous solution including the carbon dioxide bound to the carbon dioxide absorption agent into a middle chamber of an at least three-chamber electrolysis cell, wherein the three-chamber electrolysis cell includes a membrane selective for monovalent cations, and electrolyzing the aqueous solution of method step b) or the aqueous solution comprising the carbon dioxide bound to the carbon dioxide absorption agent under release of at least a part of the carbon dioxide.

The invention belongs to the technical field of carbon capture and adsorption materials, and particularly relates to a glutamic acid-MOF solid adsorbent and a preparation method and application thereof. The preparation method of the glutamic acid-MOF solid adsorbent comprises the following steps: dissolving glutamic acid in a mixed solvent of water and acetic acid, then adding zircon salt, carrying out a heating reflux reaction, filtering after the reaction is completed, and washing and drying a solid-phase product to obtain the glutamic acid-MOF solid adsorbent. According to the glutamic acid-MOF solid adsorbent, glutamic acid is adopted as an organic ligand and a carbon dioxide binding site, and the glutamic acid-MOF solid adsorbent has good carbon dioxide capturing capacity and low-temperature regeneration capacity and is environmentally friendly. The method can be applied to carbon dioxide adsorption capture.

The invention relates to the technical field of polypropylene materials, and discloses a foamed polypropylene material, a preparation method and application of the foamed polypropylene material to a cable. The preparation method comprises the following steps: adding the flame retardant and the polyethyleneimine modified nano silicon dioxide into the foamed polypropylene material, so that on one hand, the flame retardant property of the polypropylene material is improved by virtue of ternary synergistic flame retardance of phosphorus, nitrogen and silicon, and on the other hand, a polyamine structure in polyethyleneimine can be used as an affinity site to be combined with foaming gas carbon dioxide; the carbon dioxide is promoted to be uniformly dispersed in a polypropylene system, so that a finer and more uniform foam structure is formed, the flame retardant property, the mechanical property and the foaming property of the foamed polypropylene material are improved, and the foamed polypropylene material can be applied to cable materials.

The invention belongs to the technical field of environmental protection, and relates to a method for trapping carbon dioxide in tail gas. The carbon dioxide recovery device designed by the invention can monitor and capture carbon dioxide in tail gas on line, and continuous operation and accurate control are realized. Tail gas is introduced into an activated carbon filter through an air pump to remove impurities, full contact is ensured at the specific flow speed (3-8 m / s), the adsorption efficiency is improved, the content of harmful gas such as sulfur dioxide in the tail gas is reduced, and carbon dioxide in the tail gas is effectively captured and fully utilized through a solid amine adsorbent filled in an adsorption tower; the carbon dioxide recovery device is provided with the carbon dioxide detector, so that the release or adsorption state of carbon dioxide can be automatically detected and controlled.

This utility model relates to a light source replacement device in an experimental apparatus for illumination and carbon dioxide and catalyst combination. It includes: an inner support (9) of the experimental apparatus, a light source module (1), and an experimental glass test tube (10). The inner support (9) of the experimental apparatus has a two-layer structure. The experimental glass test tube (10) is inserted through the distribution holes of the upper and lower discs. The experimental glass test tube (10) is positioned and fixed at the same horizontal position. The bottom disc is designed with mounting slots (12) for light source modules of different wavelengths according to the bottom position of the experimental glass test tube (10). The light source modules (1) of different wavelengths are inserted into the mounting slots (12) of different wavelengths, so that the light-emitting end of the LED light source (5) of the light source module (1) of different wavelengths forms an optical coupling connection structure with the bottom light inlet of the experimental glass test tube (10).

The application belongs to the technical field of carbon dioxide capture, and discloses a high-energy-efficiency intelligent electrochemical carbon capture system, a capture unit, two closed loops for alternately operating, and a closed loop for capturing and releasing carbon dioxide, wherein the closed loop is composed of a capacitive adsorption device, an inductor and a metal oxide semiconductor field effect transistor; an energy storage and purification unit is used for purifying and storing energy of the captured carbon dioxide in the capture unit by means of a double-layer capacitor voltage transformation separation device, and the electric energy discharged from one capture unit is stored for supplying power to the closed loop of another capture unit; the double-layer capacitor voltage transformation separation device captures carbon dioxide during the energy storage process; and an energy monitoring unit is used for monitoring the alternately operating precise control of the capacitive adsorption device in the capture unit, realizing stable operation monitoring of the capture process, and supplementing the energy of the capacitive working loop in the energy storage and purification unit.

The invention relates to a device for separating carbon dioxide from atmospheric air, the device comprising: - a container (1), - an air inlet (3) and an air outlet (8), - a layer of filler bodies (7) arranged in the container (1) between the air inlet (3) and the air outlet (8), and - a distribution device (10) arranged between the air inlet (3) and the layer of packing elements (7) for distributing carbon dioxide-binding liquid (9), wherein the container (1) has a bag-like shape made of a liquid-impermeable, flexible lining (2) suspended in a framework (15). The invention further relates to a method for producing such a device.

The invention relates to a carbonation system comprising a carbonation cell made of monolithic, cylindrically shaped metallic material (preferably stainless-steel), capable of withstanding pressures up to 100 bar, for binding carbon dioxide to mineral-based materials in powder or sand form. The carbonation cell includes a cell lid (2) and a gas valve (3) that allows both gas inlet and outlet through a single fluid line, a pneumatic hose (4) for gas transfer between the carbonation cell and a CO2 source (6), and a manometer (5) for measuring gas pressure. The CO2 source (6) stores the CO2 gas to be delivered into the carbonation cell body (1). In the carbonation process, to remove air from inside the cell, CO2 gas is introduced and released through the same single line in preferably three successive purging cycles. Afterward, the system pressure is brought to the target pressure, and carbonation of the mineral material is achieved. The system is designed for carrying out accelerated carbonation reactions in mineral-based materials independently of applications performed with fresh cement or concrete mortar.

The invention discloses a method for generating green ammonia alcohol based on biomass carbon dioxide coupled green hydrogen, which comprises the following steps: acquiring a carbon dioxide-containing gas mixture through biomass pretreatment, specifically capturing carbon dioxide by adopting a targeted molecularly imprinted material, and combining a double-active-site composite catalyst and dynamic ratio regulation and control to generate the green ammonia alcohol. The directional reaction of carbon dioxide and green hydrogen is realized to generate green ammonia alcohol. The scheme breaks through the pain points of insufficient carbon dioxide capture purity and contradiction between catalytic conversion rate and selectivity in the prior art, through deep synergy of capture-catalysis-proportioning, the stability and efficiency of green ammonia alcohol generation are improved, biomass sources of carbon dioxide and green hydrogen are adopted in the whole process, the requirements of green and low-carbon development are met, and the method is suitable for industrial production. The method is suitable for large-scale green ammonia alcohol preparation scenes.

A wearable, skin adhesive blood gas monitoring device detects both oxygen and carbon dioxide for accommodating a potential inaccuracy in an oxygen level resulting from excessive carbon dioxide. Photoluminescent films in conjunction with a compact form-factor circuit provide a wearable and unobtrusive device that adheres directly to the epidermal surface for computation of blood gas levels based on transcutaneous and reflective properties of the blood gases. A wireless medium such as Bluetooth® enables communication to a standalone or portable device such as a smartphone or similar personal device having an application (app) for receiving the computed signals. Conditions such as hypercarbia, which tend to result in higher levels of carbaminohemoglobin, or hemoglobin bound to CO2 instead of oxygen, tend to compromise computed oxygen levels by interpreting the CO2-bound hemoglobin as oxygenated blood.