CN217410318U - Carbon dioxide recovery system - Google Patents
Carbon dioxide recovery system Download PDFInfo
- Publication number
- CN217410318U CN217410318U CN202123257266.9U CN202123257266U CN217410318U CN 217410318 U CN217410318 U CN 217410318U CN 202123257266 U CN202123257266 U CN 202123257266U CN 217410318 U CN217410318 U CN 217410318U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- aqueous solution
- gas
- recovery system
- hypergravity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Treating Waste Gases (AREA)
Abstract
A carbon dioxide recovery system comprises a carbon capture hypergravity device, a gas production hypergravity device and an electrolysis device. The carbon capture supergravity device is used for dispersing an alkaline aqueous solution and introducing a gas containing carbon dioxide to be in gas-liquid contact with the alkaline aqueous solution so as to obtain an alkali liquor containing carbonate and bicarbonate. The gas production hypergravity device is communicated to the carbon capture hypergravity device and is used for mixing the alkali liquor containing carbonate and bicarbonate with the strong acid aqueous solution so as to recycle and obtain carbon dioxide gas and saline aqueous solution. The electrolysis device is communicated to the gas production supergravity device and is used for receiving and electrolyzing the salt-containing aqueous solution so as to regenerate and obtain the alkaline aqueous solution and the strong acid aqueous solution. The carbon dioxide recovery system can effectively recover carbon dioxide in gas and can reduce energy consumption required by regeneration of the absorbent.
Description
Technical Field
The utility model relates to a carbon dioxide recovery system, in particular to a carbon dioxide recovery system comprising a carbon capture hypergravity device, a gas production hypergravity device and an electrolysis device.
Background
In the conventional recovery system for carbon dioxide in industrial waste gas, carbon dioxide is usually captured from waste gas by using an adsorbent filled in an adsorption tower or an alcohol amine compound dispersed in the adsorption tower as an absorbent, and then desorbed by heating in a desorption device or desorption (desorption) device to convert into gaseous carbon dioxide molecules.
However, the conventional carbon dioxide recovery system is prone to overflow when exposed to high gas flow, and has problems of energy consumption under regeneration conditions of the adsorbent or absorbent, and a need to improve carbon dioxide absorption efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a carbon dioxide recovery system can overcome above-mentioned background art's shortcoming.
The carbon dioxide recovery system comprises a carbon capture hypergravity device, a gas production hypergravity device and an electrolysis device. The carbon capture supergravity device is used for dispersing an alkaline aqueous solution through centrifugal force, and is used for introducing gas containing carbon dioxide from the outside to be in gas-liquid contact with the alkaline aqueous solution so as to obtain alkali liquor containing carbonate and bicarbonate. The gas production supergravity device is communicated to the carbon capture supergravity device and is used for mixing the alkali liquor containing carbonate and bicarbonate with the strong acid aqueous solution through centrifugal force so as to recover and obtain carbon dioxide gas and salt-containing aqueous solution. The electrolysis device is communicated to the gas production supergravity device and is used for receiving and electrolyzing the salt-containing aqueous solution so as to regenerate and obtain the alkaline aqueous solution and the strong acid aqueous solution.
The following will explain the present invention in detail:
preferably, the carbon dioxide recovery system of the present invention further comprises a circulating water tank, the circulating water tank is communicated to the carbon capture supergravity device for receiving the alkali solution containing carbonate and bicarbonate, and circularly guiding the alkali solution containing carbonate and bicarbonate into the carbon capture supergravity device to perform the gas-liquid contact with the gas containing carbon dioxide.
Preferably, the carbon dioxide recovery system of the present invention further comprises a power supply device electrically connected to the electrolysis device, and adapted to generate electric energy by using renewable energy to electrolyze the electrolysis device.
The beneficial effects of the utility model reside in that: the carbon dioxide recovery system can effectively recover carbon dioxide in gas, and can reduce energy consumption required by absorbent regeneration.
Drawings
Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic configuration diagram of a first embodiment of the carbon dioxide recovery system of the present invention; and
fig. 2 is a schematic diagram of the structure of a second embodiment of the carbon dioxide recovery system of the present invention.
Detailed Description
Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.
The invention will be further described with respect to the following examples, but it should be understood that the examples are for illustration only and should not be construed as limiting the practice of the invention.
Referring to fig. 1, the first embodiment of the carbon dioxide recovery system of the present invention comprises two carbon capture hypergravity devices 1, a gas production hypergravity device 2, an electrolysis device 3, two circulation water tanks 4, and a power supply device 5.
The carbon capture hypergravity devices 1 are connected in series, the foremost carbon capture hypergravity device 1 is used for dispersing sodium hydroxide (NaOH) aqueous solution through centrifugal force, each carbon capture hypergravity device 1 is used for independently introducing gas containing carbon dioxide from the outside, and carrying out gas-liquid contact with the sodium hydroxide aqueous solution or liquid from the previous carbon capture hypergravity device 1, and discharging gas which is not absorbed by the sodium hydroxide aqueous solution or the liquid from the previous carbon capture hypergravity device 1 to obtain the product containing sodium carbonate (Na) 2 CO 3 ) And sodium bicarbonate (NaHCO) 3 ) 11 of alkaline solution. In the first embodiment, the pH of the aqueous sodium hydroxide solution is 10.5 or more.
In the first embodiment, in each carbon capture hypergravity apparatus 1, the carbon dioxide content of the carbon dioxide-containing gas may be 0.1% to 50.0%, and the volumetric flow ratio of the carbon dioxide-containing gas to the aqueous sodium hydroxide solution may be 20: 1-1000: 1. the hypergravity factor of each carbon capture hypergravity apparatus may be in the range of 10 to 350.
The gas production hypergravity device 2 is communicated to the last carbon capture hypergravity device 1 for leading the alkali liquor 11 containing sodium carbonate and sodium bicarbonate and sulfuric acid (H) to be separated by centrifugal force 2 SO 4 ) Mixing the aqueous solutions to recover carbon dioxide gas and sodium sulfate (Na) 2 SO 4 ) And sodium bisulfate (NaHSO) 4 ) An aqueous solution 21.
In the first embodiment, the pH of the aqueous solution 21 containing sodium sulfate and sodium bisulfate may be 1.0 to 4.5. More preferably, the pH of the aqueous solution 21 containing sodium sulfate and sodium bisulfate may be 1.0 to 3.0. The total concentration of sodium sulfate and sodium bisulfate in the aqueous solution 21 containing sodium sulfate and sodium bisulfate can be 1-15 wt%.
In the first embodiment, the desorption degree (desorption degree) of the alkali solution 11 containing sodium carbonate and sodium bicarbonate corresponding to the carbon dioxide gas can reach 93.32% -99.92%. Wherein the carbon dioxide desorption degree (%) is calculated by the following formula:
in the above formula, n 0 CO of the soda lye 11 containing sodium carbonate and sodium bicarbonate 3 2－ And HCO 3 － Total number of moles, n represents CO of the aqueous solution 21 containing sodium sulfate and sodium bisulfate 3 2－ And HCO 3 － Total number of moles.
The electrolysis device 3 is communicated to the gas production supergravity device 2 and is used for receiving and electrolyzing the aqueous solution 21 containing sodium sulfate and sodium bisulfate to regenerate and obtain the aqueous solution of sodium hydroxide and the aqueous solution of sulfuric acid. In the embodiment of the present invention, the electrolysis device 3 electrolyzes the aqueous solution 21 containing sodium sulfate and sodium bisulfate through a bipolar membrane (bipolar membrane) to regenerate the aqueous solution containing sodium hydroxide and the aqueous solution containing sulfuric acid, as shown in the following chemical reaction formula:
Na 2 SO 4 +2H 2 O→2NaOH+H 2 SO 4
NaHSO 4 +H 2 O→NaOH+H 2 SO 4
the circulating water tanks 4 are respectively communicated to the carbon capture hypergravity devices 1, and are used for receiving the alkali liquor 11 containing sodium carbonate and sodium bicarbonate or the liquid from the corresponding carbon capture hypergravity device 1, and circularly guiding the alkali liquor 11 containing sodium carbonate and sodium bicarbonate or the liquid from the corresponding carbon capture hypergravity device 1 into the carbon capture hypergravity device 1 so as to be in gas-liquid contact with the gas containing carbon dioxide.
The power supply device 5 is electrically connected to the electrolysis device 3 and is adapted to generate electric energy from renewable energy for electrolysis of the electrolysis device 3. In an embodiment of the present invention, the power supply device 5 is a device for generating electric energy by using sunlight or wind power.
Referring to fig. 2, the second embodiment of the carbon dioxide recovery system of the present invention is similar to the first embodiment, except that the last carbon capture hypergravity apparatus 1 of the second embodiment is used for introducing gas containing carbon dioxide from the outside and making gas-liquid contact with the sodium hydroxide aqueous solution or the liquid from the previous carbon capture hypergravity apparatus 1, and the discharged gas is introduced into the previous carbon capture hypergravity apparatus 1 to finally obtain a carbon dioxide (Na) containing gas 2 CO 3 ) And sodium bicarbonate (NaHCO) 3 ) 11 of alkali liquor.
To sum up, the utility model discloses carbon dioxide recovery system is through this intercommunication configuration of catching carbon hypergravity device 1, this product gas hypergravity device 2 and this electrolytic device 3 to through introducing this alkaline aqueous solution this catch carbon hypergravity device 1, introduce this product gas hypergravity device 2 and use this electrolytic device 3 regeneration to obtain this alkaline aqueous solution and this strong acid aqueous solution, can effectively retrieve the carbon dioxide in the gas, and the required energy consumption of reducible absorbent regeneration, so can reach the purpose of the cost utility model really.
The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the specification should be included in the scope of the present invention.
Claims (3)
1. A carbon dioxide recovery system characterized by: the carbon dioxide recovery system comprises:
the carbon capture hypergravity device is used for dispersing the alkaline aqueous solution through centrifugal force and introducing gas containing carbon dioxide from the outside to be in gas-liquid contact with the alkaline aqueous solution so as to obtain alkali liquor containing carbonate and bicarbonate;
the gas-generating supergravity device is communicated to the carbon-capturing supergravity device and is used for mixing the alkali liquor containing carbonate and bicarbonate with the strong acid aqueous solution through centrifugal force so as to recover and obtain carbon dioxide gas and salt-containing aqueous solution; and
and the electrolysis device is communicated with the gas production supergravity device and used for receiving and electrolyzing the salt-containing aqueous solution so as to regenerate and obtain the alkaline aqueous solution and the strong acid aqueous solution.
2. The carbon dioxide recovery system of claim 1, wherein: the carbon dioxide recovery system also comprises a circulating water tank which is communicated with the carbon capture hypergravity device and is used for receiving the alkali liquor containing carbonate and bicarbonate and circularly guiding the alkali liquor containing carbonate and bicarbonate into the carbon capture hypergravity device so as to be in gas-liquid contact with the gas containing carbon dioxide.
3. The carbon dioxide recovery system of claim 1, wherein: the carbon dioxide recovery system also comprises a power supply device which is electrically connected to the electrolysis device and is suitable for generating electric energy by utilizing the renewable energy source so as to electrolyze the electrolysis device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123257266.9U CN217410318U (en) | 2021-12-22 | 2021-12-22 | Carbon dioxide recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123257266.9U CN217410318U (en) | 2021-12-22 | 2021-12-22 | Carbon dioxide recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217410318U true CN217410318U (en) | 2022-09-13 |
Family
ID=83174582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123257266.9U Active CN217410318U (en) | 2021-12-22 | 2021-12-22 | Carbon dioxide recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217410318U (en) |
-
2021
- 2021-12-22 CN CN202123257266.9U patent/CN217410318U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113549929B (en) | Method and system for realizing hydrogen production, organic matter oxidation, carbon dioxide absorption-desorption and hydroxide regeneration | |
| CN111924807A (en) | Method and device for trapping carbon dioxide and simultaneously producing sulfuric acid by sodium bisulfate | |
| CN103882468B (en) | A kind of electrolysis-bipolar membrane electrodialysis system and production method thereof of being produced lithium hydroxide by Quilonum Retard | |
| CN113117506A (en) | Electrolysis device and method for capturing carbon dioxide from industrial waste gas or air | |
| WO2023160261A1 (en) | System and method for capture and electric regeneration and synchronous conversion of co2 | |
| CN102101010A (en) | Electrolysis circulating flue gas desulfurization method utilizing reclamation semidry method | |
| CN105169890B (en) | A kind of regenerated electrochemical method of realization amido carbon dioxide rich solution | |
| CN109809964A (en) | A method of neopentyl glycol is purified using bipolar membrane electrodialysis system | |
| CN112499651A (en) | Method and device for preparing sodium bicarbonate by electrochemically capturing carbon dioxide | |
| CN104138703B (en) | Between/paraphthaloyl chloride produce in waste gas treatment process and device | |
| CN114788997A (en) | Flue gas CO by chemical absorption method 2 Trapping system | |
| CN106039964B (en) | A kind of method of desulfurization co-producing hydrogen and sulfuric acid | |
| CN217410318U (en) | Carbon dioxide recovery system | |
| CN113416131A (en) | Method and device for preparing methyl formate and purifying natural gas by carbon capture of gas power plant | |
| CN100411713C (en) | Regeneration process of pregnant absorbing solution and washing solution for the alkaline desulfurizing procedure of SO2 containing gas | |
| WO2024016115A1 (en) | Co2 capture and desorption apparatus and method | |
| WO2023138272A1 (en) | Direct air capture carbon dioxide energy saving system and method having precise ion control | |
| CN105000559A (en) | Carbon dioxide absorbing and purifying method | |
| CN109232171A (en) | A kind of method of the complete thick vinyl chloride gas middle acid substance of removing | |
| CN214182532U (en) | Device for solving problem of greenhouse gas emission caused by urea catalytic hydrolysis | |
| CN209771794U (en) | Device for preparing liquid sulfur dioxide | |
| TWM629712U (en) | Carbon dioxide recovery system | |
| CN114411166A (en) | Device and method for combined capture of carbon dioxide for membrane-method electrolytic hydrogen production | |
| CN219885968U (en) | Based on CO 2 Environment-friendly low-carbon salt chemical production system for resource utilization | |
| WO2024002310A1 (en) | Method for coupling carbon dioxide capture and hydrogen production, and system therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |