CN113842768A - Carbon dioxide treatment method - Google Patents
Carbon dioxide treatment method Download PDFInfo
- Publication number
- CN113842768A CN113842768A CN202111360289.4A CN202111360289A CN113842768A CN 113842768 A CN113842768 A CN 113842768A CN 202111360289 A CN202111360289 A CN 202111360289A CN 113842768 A CN113842768 A CN 113842768A
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- China
- Prior art keywords
- carbon dioxide
- precipitation unit
- solution
- precipitation
- sodium hydroxide
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- 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.)
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 238000001556 precipitation Methods 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 10
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 239000011381 foam concrete Substances 0.000 claims abstract description 5
- 230000008595 infiltration Effects 0.000 claims abstract description 3
- 238000001764 infiltration Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 238000002791 soaking Methods 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a waste gas treatment method, in particular to a carbon dioxide treatment method, which comprises the following steps: s1, collecting carbon dioxide generated by the gas production unit of the industrial enterprise; s2, adding waste foam concrete into the precipitation unit, and adding a proper amount of hydrogen chloride solution for infiltration; s3, adding a sodium hydroxide solution into the precipitation unit, and adjusting the pH value of the solution in the precipitation unit to 9.0-10.0; s4, injecting the carbon dioxide gas collected in the S1 step into a precipitation unit for reaction. The scheme solves the problem that the treatment cost of the carbon dioxide is higher in the prior art.
Description
Technical Field
The invention relates to a waste gas treatment method, in particular to a carbon dioxide treatment method.
Background
With the continuous promotion of industrialization process, more and more industries generate carbon dioxide, and the carbon dioxide is a main cause of global warming, so that how to carry out low-cost recovery treatment on the carbon dioxide generated by the industries becomes an urgent problem to be solved.
Disclosure of Invention
The invention aims to provide a method for treating carbon dioxide, which aims to solve the problem of high treatment cost of the carbon dioxide in the prior art.
In order to achieve the above object, a basic aspect of the present invention provides a method for treating carbon dioxide, comprising the steps of: s1, collecting carbon dioxide generated by the gas production unit of the industrial enterprise; s2, adding waste foam concrete into the precipitation unit, and adding a proper amount of hydrogen chloride solution for infiltration; s3, adding a sodium hydroxide solution into the precipitation unit, and adjusting the pH value of the solution in the precipitation unit to 9.0-10.0; s4, injecting the carbon dioxide gas collected in the S1 step into a precipitation unit for reaction.
The beneficial effect of this basic scheme lies in: the waste foam concrete is utilized to generate free calcium ions, then a calcium hydroxide solution is formed, carbon dioxide reacts with the calcium hydroxide solution to form calcium carbonate precipitate, and the carbon dioxide is treated and absorbed. By adopting the method, the waste building materials are effectively utilized, so that the effect of treating the carbon dioxide at low cost is achieved.
In order to further improve the effect of treating carbon dioxide, in the step S2, the PH of the hci solution is 2.0-3.0, and the soaking time is 30-40 minutes.
In order to further enhance the effect of treating carbon dioxide, in the step S2, the PH of the hci solution is 2.0, and the soaking time is 30 minutes.
In order to further enhance the effect of treating carbon dioxide, the concentration of the sodium hydroxide solution in the step of S3 is 8 to 11 mol per liter.
In order to further enhance the effect of treating carbon dioxide, the concentration of the sodium hydroxide solution in the step S3 is 10 mol/l.
In order to further enhance the effect of treating carbon dioxide, in the step S3, the PH of the solution in the precipitation unit is adjusted to 9.0.
In order to further enhance the effect of processing carbon dioxide, at least two precipitation units are provided in the step S2. By adopting the arrangement, the sedimentation units can be used alternately, so that the continuous treatment of the carbon dioxide is realized.
Drawings
FIG. 1 is a schematic diagram of a processing system for implementing an embodiment of a method for processing carbon dioxide in accordance with the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a gas storage tank 1, a precipitation unit 2, a hydrogen chloride solution storage tank 3 and a sodium hydroxide solution storage tank 4.
Example (b): a method of treating carbon dioxide comprising the steps of:
and S1, collecting the carbon dioxide generated by the gas generating unit of the industrial enterprise, wherein in the embodiment, a gas storage tank is preferably adopted to collect and store the carbon dioxide.
S2, adding waste foam concrete into the precipitation units, wherein in the embodiment, at least two precipitation units are arranged; and adding a proper amount of hydrogen chloride solution into the precipitation unit for soaking, wherein the pH value of the hydrogen chloride solution is 2.0 in the embodiment, and the soaking time is 30 minutes, but the pH value of the hydrogen chloride solution can be any value between 2.0 and 3.0 in other embodiments, and the soaking time can be between 30 and 40 minutes.
S3, adding a sodium hydroxide solution into the precipitation unit, and adjusting the pH value of the solution in the precipitation unit to 9.0-10.0, wherein in the embodiment, the pH value of the solution in the precipitation unit is preferably adjusted to 9.0; in this embodiment, the concentration of the sodium hydroxide solution is 10 mol/l, but in other embodiments, the concentration of the sodium hydroxide solution may be any value from 8 to 11 mol/l.
S4, injecting the carbon dioxide gas collected in the S1 step into a precipitation unit for reaction. In this embodiment, the plurality of precipitation units are used in turn, so that when calcium carbonate precipitates in the precipitation unit after the reaction are treated, the other precipitation units can continue to react with carbon dioxide, thereby realizing continuous treatment of carbon dioxide.
As shown in fig. 1, a processing system for implementing a carbon dioxide processing method includes a gas storage tank 1, a precipitation unit 2, a hydrogen chloride solution storage tank 3, and a sodium hydroxide solution storage tank 4, wherein the gas storage tank 1 is communicated with the precipitation unit 2 through a gas transmission pipeline, the gas transmission pipeline is provided with a control valve, and the hydrogen chloride solution storage tank 3 and the sodium hydroxide solution storage tank 4 are also respectively communicated with the precipitation unit 2 through valves.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (7)
1. A method of treating carbon dioxide comprising the steps of:
s1, collecting carbon dioxide generated by the gas production unit of the industrial enterprise;
s2, adding waste foam concrete into the precipitation unit, and adding a proper amount of hydrogen chloride solution for infiltration;
s3, adding a sodium hydroxide solution into the precipitation unit, and adjusting the pH value of the solution in the precipitation unit to 9.0-10.0;
s4, injecting the carbon dioxide gas collected in the S1 step into a precipitation unit for reaction.
2. A method for processing carbon dioxide according to claim 1, characterized in that: in the step S2, the pH value of the hydrogen chloride solution is 2.0-3.0, and the soaking time is 30-40 minutes.
3. A method for processing carbon dioxide according to claim 2, characterized in that: in the step S2, the PH of the hcl solution is 2.0, and the soaking time is 30 minutes.
4. A method for processing carbon dioxide according to claim 3, characterized in that: in the step S3, the concentration of the sodium hydroxide solution is 8-11 mol/L.
5. A method for processing carbon dioxide according to claim 4, characterized in that: in the step S3, the concentration of the sodium hydroxide solution is 10 mol/l.
6. A method for processing carbon dioxide according to claim 5, characterized in that: in the step S3, the pH value of the solution in the precipitation unit is adjusted to 9.0.
7. The method for processing carbon dioxide according to claim 6, wherein: in the step S2, at least two precipitation units are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360289.4A CN113842768A (en) | 2021-11-17 | 2021-11-17 | Carbon dioxide treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360289.4A CN113842768A (en) | 2021-11-17 | 2021-11-17 | Carbon dioxide treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113842768A true CN113842768A (en) | 2021-12-28 |
Family
ID=78984375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111360289.4A Pending CN113842768A (en) | 2021-11-17 | 2021-11-17 | Carbon dioxide treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113842768A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006075717A (en) * | 2004-09-09 | 2006-03-23 | Nippon Steel Corp | Utilization method of carbon dioxide |
| JP2009090198A (en) * | 2007-10-05 | 2009-04-30 | Shimizu Corp | Method for fixing carbon dioxide |
| US20090127127A1 (en) * | 2007-09-20 | 2009-05-21 | Joe David Jones | Removing Carbon Dioxide From Waste Streams Through Co-Generation of Carbonate and/or Bicarbonate Minerals |
| US20090169452A1 (en) * | 2007-12-28 | 2009-07-02 | Constantz Brent R | Methods of sequestering co2 |
| JP2012131697A (en) * | 2010-12-02 | 2012-07-12 | Nihon Univ | Immobilizing method of carbon dioxide |
| US20150209724A1 (en) * | 2014-01-29 | 2015-07-30 | Kabushiki Kaisha Toshiba | Heat-stable salt removing system, carbon dioxide recovering system and heat-stable salt removing method |
| KR20170121637A (en) * | 2016-04-25 | 2017-11-02 | 주식회사 애니텍 | Manufacturing system of calcium carbonate using the recycling water of ready-mixed concrete |
| JP2020163821A (en) * | 2019-03-31 | 2020-10-08 | 太平洋セメント株式会社 | Sludge water treatment recovery method |
-
2021
- 2021-11-17 CN CN202111360289.4A patent/CN113842768A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006075717A (en) * | 2004-09-09 | 2006-03-23 | Nippon Steel Corp | Utilization method of carbon dioxide |
| US20090127127A1 (en) * | 2007-09-20 | 2009-05-21 | Joe David Jones | Removing Carbon Dioxide From Waste Streams Through Co-Generation of Carbonate and/or Bicarbonate Minerals |
| JP2009090198A (en) * | 2007-10-05 | 2009-04-30 | Shimizu Corp | Method for fixing carbon dioxide |
| US20090169452A1 (en) * | 2007-12-28 | 2009-07-02 | Constantz Brent R | Methods of sequestering co2 |
| JP2012131697A (en) * | 2010-12-02 | 2012-07-12 | Nihon Univ | Immobilizing method of carbon dioxide |
| US20150209724A1 (en) * | 2014-01-29 | 2015-07-30 | Kabushiki Kaisha Toshiba | Heat-stable salt removing system, carbon dioxide recovering system and heat-stable salt removing method |
| KR20170121637A (en) * | 2016-04-25 | 2017-11-02 | 주식회사 애니텍 | Manufacturing system of calcium carbonate using the recycling water of ready-mixed concrete |
| JP2020163821A (en) * | 2019-03-31 | 2020-10-08 | 太平洋セメント株式会社 | Sludge water treatment recovery method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211228 |
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