104 results about "Carbon dioxide absorber" patented technology

The utility model discloses a carbon dioxide concentration monitoring and purifying device which comprises a base, a purifying vessel movably connected between the two sides of the base, a first sealing cover arranged at the top of the purifying vessel, a detection assembly arranged at the top of the base, a plurality of purifying bins arranged in the purifying vessel, and carbon dioxide absorbent particles placed in the purifying bins. First through grooves are formed among the multiple purification bins, first gears are made to rotate under the action of a first driving motor, spiral stirring blades stir carbon dioxide absorbents in the purification bins through cooperation of the first gears and second gears, and the carbon dioxide absorbents on the upper layer and the lower layer are made to alternate in a reciprocating mode. The problems that most of existing carbon dioxide concentration monitoring and purifying devices use carbon dioxide absorbents to purify carbon dioxide, but the carbon dioxide absorbents are accumulated in the devices and are in a standing state, the absorbents on the upper layer always work firstly during absorption, the utilization efficiency of the absorbents on the lower layer is low, and the cost is low are solved. And waste is caused to a certain extent.

The present invention provides: an alkyleneimine polymer which has little coloration, high solubility in water, and excellent storage stability in an aqueous solution, and has reduced deterioration; and a method for producing the same. The present invention also provides a carbon dioxide absorbent material which is excellent in terms of carbon dioxide adsorption / desorption capacity (especially, carbon dioxide adsorption / desorption capacity retention rate and carbon dioxide desorption rate).　This alkyleneimine polymer comprises a structural unit (A) represented by general formula (1) (in general formula (1), either N is a primary amine) and a structural unit (B) represented by general formula (2), and has a number average molecular weight (Mn) of 250 to 50,000. (In general formula (2), X represents an organic group having 3 to 20 carbon atoms.)

Conventionally, CO2 absorbents such as isophorone diamine are used, and the CO2 absorption process at low temperatures and the CO2 extraction process at high temperatures are carried out in separate tanks. However, once the CO2 absorbent such as isophorone diamine absorbs CO2 and solidifies (changes into carbamic acid), it becomes difficult to move it to the other tank, which presents a problem. [Solution] Even when CO2 absorbents such as isophorone diamine absorb CO2 and solidify (change into carbamic acid), the system does not require movement. By creating a (medium to high) vacuum inside the tank, the amount of air inside the tank is reduced, and the concentration of CO2 extracted from the carbamic acid increases accordingly.

Provided is a modified polyalkyleneimine that exhibits an excellent durability and an excellent carbon dioxide adsorption / desorption capability.　The modified polyalkyleneimine has a structural unit (I) derived from a polyalkyleneimine and has a substituent (A) represented by general formula (1). The molar ratio [substituent (A) / primary amino group in the structural unit (I)] of the substituent (A) to the primary amino group contained in the structural unit (I) in the modified polyalkyleneimine is not greater than 20 / 80.　(1) *– CH2 – CH ( – R1) – X (In general formula (1), X represents a monovalent group having 1 to 30 carbons, a nitro group, or a halogen atom; R1 represents a hydrogen atom or methyl group; and the * (asterisk) denotes a direct bond to a nitrogen atom contained in an amino group in the structural unit (I).)

The present invention provides: a carbon dioxide absorbing liquid which has excellent carbon dioxide absorbing performance; a carbon dioxide absorbing liquid which is capable of easily desorbing carbon dioxide when the absorbing liquid is regenerated in addition to having the above-described carbon dioxide absorbing performance; a method for separating carbon dioxide and a method for separating and recovering carbon dioxide, each using the carbon dioxide absorbing liquid; and a device using the carbon dioxide absorbing liquid. The present invention relates to a carbon dioxide absorbing liquid which contains a solvent and a phosphine oxide compound represented by general formula (1) (wherein a, b, and c each represent an integer of 1 to 10, R1, R2, and R3 each independently represent an amino group or a hydroxy group, and at least one of R1, R2, and R3 is an amino group).

The invention relates to the field of carbon dioxide capture, and provides a carbon dioxide absorbent pregnant solution double-tower cascade catalytic desorption system and method. The carbon dioxide absorbent rich liquor double-tower cascade catalytic desorption system comprises a low-temperature catalytic desorption tower, a solid acid catalyst packing layer is arranged in the low-temperature catalytic desorption tower, and an absorbent liquid outlet is formed in the tower bottom of the low-temperature catalytic desorption tower; the high-temperature thermal desorption tower is connected with the low-temperature catalytic desorption tower in series, a common filler layer without catalytic action is arranged in the high-temperature thermal desorption tower, and an absorbent liquid inlet is formed in the top of the high-temperature thermal desorption tower; an absorbent liquid outlet of the low-temperature catalytic desorption tower is communicated with an absorbent liquid inlet of the high-temperature thermal desorption tower through a pipeline, and the low-temperature catalytic desorption tower is used for conveying the absorbent subjected to low-temperature catalytic desorption to the high-temperature thermal desorption tower for high-temperature thermal desorption. According to the carbon dioxide absorbent pregnant solution double-tower cascade catalytic desorption system, the desorption temperature can be reduced, and the cyclic loading capacity of the absorbent can be ensured.

The present invention relates to a carbon dioxide absorbent. Specifically, in order to complement a short gas / liquid contact time of an RPB device, the carbon dioxide absorbent includes: a first compound and a second compound including two different alkanolamines; and a third compound including a cyclic tertiary amine, in specified contents, thereby maintaining low heat of reaction and improving absorption capacity and absorption rate.

The present invention provides: a method for producing dehydrated steam gas, said method including selectively removing water vapor in atmospheric air by passing the atmospheric air through an ionic liquid membrane; a method for recovering CO2 using the same; a method for producing a chemical reaction product of CO2 and a CO2 absorbent; a CO2 gas recovery system; and an ionic liquid membrane to be used with the above.

The utility model relates to the technical field of water vapor filtering, in particular to a carbon dioxide absorber with a water vapor filtering function, and solves the problem that the use is influenced by relatively high moisture of flowing gas in the carbon dioxide absorber due to relatively poor filtering effect caused by relatively short gas flowing channel in the prior art. A carbon dioxide absorber with a water vapor filtering function comprises a filter cartridge, the side face of the filter cartridge is communicated with an air inlet pipe, the interior of the filter cartridge is fixedly connected with a partition plate, an air outlet pipe penetrates through the side face of the filter cartridge, the bottom of the air outlet pipe is communicated with a filtering mechanism, and the bottom of the filter cartridge is fixedly connected with a cover plate. According to the utility model, the channel path for gas circulation is increased, so that the cooling and filtering effects of moisture in the gas are better, and the carbon dioxide absorber can be normally used without being influenced by the moisture.

The invention discloses a programmable atmosphere carbon dioxide absorbent forced oxidative degradation test system and method, and the system comprises a gas supply and mixing module which is used for generating simulated flue gas with programmable components and humidity through a multi-path gas source and a mass flow controller; the constant-temperature and constant-pressure reaction module comprises a reaction kettle with heating, stirring and pressure and temperature monitoring functions; the isobaric sampling and re-pressing gas supply module is used for maintaining the system pressure and atmosphere stability through a buffer cavity and a re-pressing branch during sampling; and an integrated control module. The method comprises the following steps: preparing a system, setting parameters, generating a simulated atmosphere, establishing constant-temperature and constant-pressure reaction conditions, and carrying out isobaric sampling and automatic re-pressing compensation. By integrating programmable atmosphere control and a unique isobaric sampling and re-pressing structure, long-term and multi-frequency stable sampling in a simulated real flue gas environment is realized, so that high-fidelity and high-repeatability degradation test data is obtained.

The application provides a kind of carbon dioxide absorbent based on piperazine derivative and preparation method and application, it is related to carbon dioxide capture technical field, the absorbent is piperazine derivative as main absorbent, including not less than 19% by mass fraction N-(2-hydroxyethyl) piperazine and / or N,N'-dihydroxyethyl piperazine, not more than 17% piperazine, not more than 1% N-hydroxyethyl-N'-hydroxyethoxyethyl piperazine, not less than 59% water.The application also provides a kind of preparation method of the absorbent.The absorbent provided by the application has good carbon dioxide absorption effect, low foaming, high cycle load and low regeneration energy consumption and other advantages.

The present invention aims to provide a carbon dioxide absorbent that can efficiently absorb, fix, and simply separate and recover carbon dioxide in the air. The present invention relates to an atmospheric carbon dioxide absorbent consisting of an amine selected from the group consisting of m-xylylene diamine, benzylamine, phenethylamine, p-methoxybenzylamine, and p-trifluoromethylbenzylamine, and water, and having the amine content of 1 to 50 wt % with respect to the total amount. The present invention also relates to a method for generating carbon dioxide which uses the aforementioned carbon dioxide absorbent and is simple and superior in energy efficiency.

The invention relates to caustic leached RHA absorbent materials obtained as a residue during alkaline silica production in hydrothermal process, and use of residue as CO2 absorbent material.

The invention relates to a mining self-rescuer intelligent management and control system which comprises an operation platform, a control panel and a waste absorbent feeding port, a carbon dioxide absorbent intelligent loading assembly, the control panel and the waste absorbent feeding port are sequentially installed on the upper portion of the operation platform, and a waste recycling bin is arranged in the position, under the waste absorbent feeding port, in the operation platform; according to the invention, the pressure state of the self-rescuer and the corresponding carbon dioxide absorbent filling date in the background data are read through the self-rescuer clamping table, so that the equipment can determine the maintenance item, and the maintenance steps are prompted through voice; the intelligent carbon dioxide absorbent loading assembly automatically weighs a corresponding number of carbon dioxide absorbents, the carbon dioxide absorbents are manually guided to be loaded into the self-rescuer, then compressed oxygen is provided by the oxygen pipeline connecting terminal, the oxygen is flushed into a compressed gas cylinder, background data and an electronic ledger are automatically updated, and the self-rescuer is started. Voice prompt can be sent out, the self-rescuer number and the self-rescuer state can be automatically read, and operation steps can be prompted according to the self-rescuer state.

The utility model discloses a carbon dioxide absorbent oxidative degradation analysis device, which belongs to the technical field of detection devices, and is characterized by comprising a base, a tank body is fixedly connected to the left side of the top of the base, a mixing assembly is fixedly connected to the inside of the tank body, and a detection assembly is fixedly connected to the right side of the top of the tank body; the mixing assembly comprises a storage pipe, and solves the problems that an existing analysis device is inconvenient to increase the contact area of a reagent and air, and in actual detection, due to the limitation of the device structure, the reagent and the air are inconvenient to drive to fully flow, so that the contact area of the air and the reagent in a tank is not good, and the air and the reagent cannot be fully mixed; the problems that in the prior art, a carbon dioxide absorbent and oxygen and other components in air are not fully subjected to an oxidation reaction, the oxidative degradation process of the absorbent in actual use is difficult to truly simulate, the analysis result is affected, and the practicability of the device is reduced are solved.

The utility model relates to the technical field of carbon dioxide absorbers, in particular to a carbon dioxide absorber with an automatic replacement alarm function. In the working process of the carbon dioxide absorber, an absorbent is loaded in the absorber body assembly. Air flow enters the absorber body assembly through the air inlet and passes through the absorbent, the absorbent absorbs carbon dioxide in the air flow, and then the air flow is discharged from the air outlet. After the absorbent absorbs carbon dioxide, corresponding parameters of the absorbent body assembly change, parameter data of the absorber body are detected through the detection module, after the control module receives the parameter data from the detection module, a control instruction is sent to the indication module according to the parameter data, and the indication module carries out change indication according to the control instruction. Therefore, a worker can more accurately and quickly judge whether the carbon dioxide absorber needs to be replaced or not, and the convenience and accuracy of judgment of replacement of the carbon dioxide absorber are improved.

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.

A gas processing method and equipment, the equipment includes an exhaust gas oxygen remover 2, utilising an oxygen absorbent solvent; and a downstream gas processing absorber device 3, that processes

The present application relates to carbon dioxide absorbent technical field, especially relates to a kind of ionic liquid-like carbon dioxide absorbent preparation method.The present application includes the following steps: (one) synthesis preparation: the choline chloride and urea are made into low eutectic solvent DES, polyamide amine PAMAM G1 and low eutectic solvent DES are made into absorbent;(two) mixing and heating: after drying raw material is added to heating container, add dioxane as solvent, place in oil bath, stirring heating, mixture gradually from turbid solid becomes homogeneous, transparent, viscous liquid;(three) purification and water removal: after forming homogeneous liquid, in vacuum stirring, to remove moisture, and the final product is liquid ionic liquid carbon dioxide absorbent.The beneficial effect is: the preparation method of the present application is simple and controllable, reaction condition is mild, easy to scale production, provides a feasible technical scheme for industrial application;Solve the existing absorbent active site few, the problem of low carbon dioxide capture amount.

1. The name of the design product: multifunctional anesthetic gas carbon dioxide absorber. 2. The use of the design product: the design product is used for adsorbing anesthetic gas and carbon dioxide in closed loop of anesthetic machine. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

The invention relates to the technical field of carbon dioxide normal-temperature trapping materials, in particular to a carbon dioxide absorbent and a preparation method thereof. The preparation method of the carbon dioxide absorbent provided by the invention comprises the following steps: dissolving a binder in water, adding lithium hydroxide powder, and stirring to form suspension slurry; adding a pore structure inducer into the suspension slurry, and stirring to form target slurry; freezing the target slurry to enable water in the target slurry to form an ice fiber template so as to obtain a lithium hydroxide frozen body; carrying out vacuum drying treatment on the lithium hydroxide frozen body to sublimate the ice fiber template to obtain a lithium hydroxide material with a three-dimensional reticular pore structure; and carrying out extrusion shaping treatment on the lithium hydroxide material with the three-dimensional reticular pore structure to obtain the carbon dioxide absorbent.

A carbon dioxide absorbent including an evaporation inhibitor according to the present invention relates to an absorbent used in a wet carbon dioxide capture process. The absorbent including an evaporation inhibitor can effectively absorb carbon dioxide and suppress evaporation to reduce regeneration energy consumption due to latent heat of water consumed in a removal process, thereby increasing energy efficiency.

The purpose of the present invention is to provide: a novel phosphine oxide compound; a compound for a carbon dioxide absorbent, the compound being composed of the phosphine oxide compound; and a carbon dioxide absorbent. The present invention provides: a phosphine oxide compound which is characterized by being represented by general formula (1) (in the formula, a, b, and c independently represent an integer of 1 to 10 inclusive, and R1 represents a primary amino group, a secondary amino group, or a tertiary amino group); a compound for a carbon dioxide absorbent, the compound being composed of the phosphine oxide compound; and a carbon dioxide absorbent.

The present invention provides a carbon dioxide absorber canister-free anesthesia device. It comprises a ventilator, an anesthetic vaporization canister, a gas sieve canister, and a molecular sieve membrane. In the present invention, a gas separation membrane is used for the selective permeation of carbon dioxide, thereby achieving precise sieving at the molecular level in the separation of a carbon dioxide-containing gas mixture. Simultaneously, a multi-channel ceramic hollow fiber membrane is used as a support for the gas separation membrane, which increases the packing density of the membrane and enables miniaturization of a carbon dioxide separation device. The present invention solves the problem of existing anesthesia-related ventilators that, in practical applications, the lack of monitoring of the end-tidal carbon dioxide concentration (Pi) leads to inaccuracies in the end-tidal concentration (Pi). ETCO2) and the inspiratory carbon dioxide concentration (FiCO2) or delayed exchange of the carbon dioxide absorbent, carbon dioxide2 rebreathing occurs in a patient, leading to carbon dioxide accumulation on the part of the patient.

The invention relates to a method for capturing carbon dioxide, which method comprises the following steps carried out at the outlet of a carbon dioxide absorber: a) supplying a first desorber operating at a first temperature and a first pressure with a majority portion of a solvent stream; b) supplying a second desorber operating at a second temperature and at a second pressure with the remainder of the solvent stream, the second temperature and the second pressure being respectively lower than the first temperature and the first pressure; c) recovering, at the outlet of each desorber, a gas comprising carbon dioxide and water vapour; d) condensing the water vapour exiting the first desorber, the latent heat of condensation of the water being used to supply heat to a boiler supplying the second desorber.

This invention discloses a dry-water type carbon dioxide absorbent with photothermal conversion properties, its preparation method, and its application. The dry-water type carbon dioxide absorbent includes an encapsulation material and an organic amine solution encapsulated within the encapsulation material; the encapsulation material includes a hydrophobic material and a light-absorbing material. This absorbent is formed by adhering the hydrophobic and light-absorbing materials to the surface of the organic amine solution through a high-speed moving organic amine solution, thus encapsulating the organic amine solution to form dry-water type liquid beads. The dry-water type carbon dioxide absorbent provided by this invention absorbs and stores energy under sunlight, and performs carbon dioxide desorption and release, so that the desorption-induced heating does not require an additional heat source, reducing regeneration energy consumption.

The present disclosure relates to a carbon dioxide absorbent containing an ionic material containing a spiro ammonium cation and a hydroxide anion. The carbon dioxide absorbent according to an exemplary embodiment contains a hydroxide anion having a small molecular weight and high basicity, such that absorption performance per unit volume of the absorbent may be effectively improved. Further, the carbon dioxide absorbent according to an exemplary embodiment is soluble in water and thus may not cause layer separation problems.

The embodiments of the present disclosure relate to a carbon dioxide absorbent containing an ionic material containing a cyclic ammonium cation and a hydroxide anion. The carbon dioxide absorbent according to an embodiment contains a hydroxide anion having a small molecular weight and high basicity, such that absorption performance per unit volume of the absorbent may be effectively improved. Further, the carbon dioxide absorbent according to an embodiment is soluble in water and thus may not cause layer separation problems.

Provided are a carbon dioxide absorbent comprising an ionic liquid comprising a choline-based cation and a phenolate-based anion, and an aliphatic alcohol, and a method of separating carbon dioxide using the same. Since carbon dioxide absorbent of the present disclosure is thermally and chemically stable, it may decrease by-products released into the atmosphere and thus, is environmentally friendly, and the method of separating carbon dioxide using the absorbent is an economical method which allows energy saving with low energy in a regeneration step.

The utility model relates to the technical field of anesthetic breathing gas filtering and anesthetic waste gas absorbing equipment, and provides a disposable breathing gas filter and an anesthetic breathing system, which comprise filtering structures respectively arranged in a gas inlet pipe, a first inner cavity and a second inner cavity; the filtering structure comprises a first filter, and the first filter is detachably installed on the air inlet pipe. The shell is provided with a first inner cavity and a second inner cavity, the first inner cavity and the second inner cavity are used for containing a carbon dioxide absorbent respectively, and the first inner cavity and the second inner cavity are separated; the air inlet pipe is communicated with the first inner cavity; the air outlet pipe is communicated with the second inner cavity; the flow guide structures are respectively arranged in the first inner cavity and the second inner cavity and are used for prolonging an airflow circulation path; according to the scheme, bacteria in gas can be thoroughly removed, carbon dioxide, dust impurities and water in the gas can be removed at the same time, it is guaranteed that the gas inhaled by a patient is clean and safe, and rehabilitation of the patient is better facilitated.