CN115504811A - Permanent CO sequestration utilizing solar photo-thermal catalysis of minerals 2 Method (2) - Google Patents
Permanent CO sequestration utilizing solar photo-thermal catalysis of minerals 2 Method (2) Download PDFInfo
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- CN115504811A CN115504811A CN202211104000.7A CN202211104000A CN115504811A CN 115504811 A CN115504811 A CN 115504811A CN 202211104000 A CN202211104000 A CN 202211104000A CN 115504811 A CN115504811 A CN 115504811A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 35
- 239000011707 mineral Substances 0.000 title claims abstract description 34
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 19
- 230000009919 sequestration Effects 0.000 title claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Natural products O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052604 silicate mineral Inorganic materials 0.000 claims abstract description 37
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 32
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 238000003763 carbonization Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 150000004760 silicates Chemical class 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- 239000010453 quartz Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000011575 calcium Substances 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 238000007885 magnetic separation Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 239000010450 olivine Substances 0.000 claims description 3
- 229910052609 olivine Inorganic materials 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- 239000010456 wollastonite Substances 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010000 carbonizing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000010811 mineral waste Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5007—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing
- C04B41/501—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with salts or salty compositions, e.g. for salt glazing containing carbon in the anion, e.g. carbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a method for permanently sealing CO by utilizing solar photo-thermal catalysis mineral 2 The method comprises the following steps: s1, absorbing sunlight in a photo-thermal device and converting light energy into heat energy; s2, filling a silicate mineral carbon dioxide fixing agent and a catalyst into a reactor after mixing; s3, mixing CO 2 Introducing into a reactor; s4, continuously introducing the heat energy obtained in the step S1 into a reactor to perform mineral carbonization reaction; s5, after the reaction is finished, separating the saturated silicate mineral carbon dioxide fixing agent from the catalyst, carrying out subsequent treatment on the carbon dioxide fixing agent, and returning the catalyst to the step S2 for recycling; and S6, permanently sealing the silicate mineral generated after the reaction. The invention uses solar energy as energy source to carry out CO 2 The permanent storage of the minerals, the sustainable utilization of energy, the sustainable execution of the mineral storage process, permanent fixation, no limitation of regions and spaces and no pollution to the environment.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to permanent CO sequestration by utilizing solar photothermal catalysis of minerals 2 The method of (1).
Background
Currently the most common removal of CO 2 The method is a carbon capture and sequestration technology, which adopts the carbon capture technology to capture CO discharged by the industry or related energy industries 2 Separated, transported and sealed to the seabed or underground. Wherein CO is 2 Mineral sequestration is considered to be the most promising sequestration technology. CO 2 2 The mineral sealing technology is to simulate and accelerate the weathering process of rock in nature, and utilizes the reaction of carbon dioxide and calcium-magnesium-containing silicate mineral to make it react with stable carbonate (CaCO) 3 /MgCO 3 ) Form and permanent sealing.
However, the sequestration process requires the consumption of large amounts of energy to remove the CO 2 Meanwhile, the environment is polluted, so people begin to seek a sustainable, efficient and green environmental solution. Wherein the environmental problem is solved by degrading environmental pollution and developing green energy to replace fossil energyBecome two mainstream schemes at present. Solar energy is a green, sustainable energy source. Therefore, the research on the relevant technology for realizing carbon emission reduction by utilizing natural energy is very important.
Disclosure of Invention
The invention aims to provide a method for permanently sealing CO by utilizing solar photo-thermal catalysis of minerals 2 The method of (1).
The object of the invention is achieved by the following steps:
s1, absorbing sunlight in a photo-thermal device and converting light energy into heat energy;
s2, filling a silicate mineral carbon dioxide fixing agent and a catalyst into a reactor after mixing;
s3, mixing CO 2 Introducing into a reactor;
s4, continuously introducing the heat energy obtained in the step S1 into a reactor to perform mineral carbonization reaction; in the process of CO capture 2 The reaction with natural mineral or industrial waste (silicate mineral carbon dioxide fixing agent) rich in Ca, mg and other elements in a reactor under a proper temperature condition to generate a stable carbonate product;
s5, after the reaction is finished, separating the saturated silicate mineral carbon dioxide fixing agent from the catalyst, carrying out subsequent treatment on the carbon dioxide fixing agent, and returning the catalyst to the step S2 for recycling;
and S6, permanently storing the silicate mineral generated after the reaction or using the silicate mineral as a building raw material.
Preferably, the photothermal device comprises a quartz tube, a film and a vacuum layer, wherein the film covers the outer surface of the quartz tube, the vacuum layer covers the film, the film is a Cr film, and the pressure of the vacuum layer is 1.2 x 10 -3 Pa; the Cr film can be a commercial Cr film, and the Cr film covers the outer surface of the quartz tube in a coating mode, so that the quartz tube can completely absorb sunlight, simultaneously radiate a small amount of infrared light, convert the sunlight into heat energy and localize the heat energy; the vacuum layer is used for reducing heat loss, and the temperature is 1KW m under the condition that the ambient temperature is 30 DEG C -2 The photo-thermal device has an internal temperature as high as 305 ℃.
Preferably, the silicate mineral carbon dioxide fixing agent in the step S2 is one of wollastonite, olivine, serpentine, talc and basalt which contain calcium and magnesium elements.
Preferably, the reactor in the step S2 is a reactor of a solid particle bed, and is one of a fixed bed reactor, a fluidized bed reactor, a moving bed reactor and a trickle bed reactor.
Preferably, CO is said in step S3 2 The concentration is 50% -100%.
Preferably, the heat energy in the step S4 is controlled to be 600K-1000K.
Preferably, the S4 step mineral carbonization reaction directly carbonizes the dry-method carbon fixation in the route, wherein the liquid-solid ratio of the dry-method carbon fixation is lower than 0.2, and the carbonization rate is 50% -90% under the 673K reaction condition.
Preferably, the particle size of the catalyst is 50-200 μm, the particle size of the silicate mineral carbon dioxide fixing agent is 50-100 μm, and the separation method of the catalyst and the silicate mineral carbon dioxide fixing agent in the step S5 is one of screening, gravity separation and magnetic separation.
Preferably, the permanent sealing in step S6 is one of sea filling, landfill and mine piling.
Compared with the prior art, the invention has the following technical effects:
1. according to the invention, a silicate mineral carbon dioxide fixing agent and a catalyst react with carbon dioxide in a reactor to generate a stable carbonate product, the heat energy required by the reaction is the heat energy obtained by converting light energy by a photo-thermal device, the catalyst can be separated and reused after the reaction, and the carbonate product can be permanently sealed and can also be used as a building raw material;
2. the method of the invention utilizes solar energy as CO 2 The energy in the mineral sealing and storing process can reduce energy consumption cost, the energy can be continuously utilized, the whole sealing and storing process can be continuously carried out without reversion, and CO can be treated 2 The resource utilization is carried out, the waste is changed into valuable, and the environment benefit is good; the environment is not polluted; without regional and spatial restrictions, at any rateCO 2 The mineral is sealed and stored without worrying about the problems of insufficient energy supply and energy transportation; the solar energy is used as renewable energy, so that the utilization of non-renewable energy is reduced, and the non-renewable energy is protected.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
in the figure: 1-quartz tube, 2-film, 3-vacuum layer, 4-reactor.
Detailed Description
The invention is further illustrated by the following examples, but is not intended to be limited in any way, and any modifications or alterations based on the teachings of the invention are intended to fall within the scope of the invention.
Example 1
Permanent CO sequestration by utilizing solar photo-thermal catalysis of minerals 2 The method comprises the following steps:
s1, absorbing sunlight in a photo-thermal device and converting light energy into heat energy;
s2, mixing a silicate mineral carbon dioxide fixing agent and a catalyst and filling the mixture into a reactor, wherein the silicate mineral carbon dioxide fixing agent is wollastonite containing calcium and magnesium elements, the particle size of the silicate mineral carbon dioxide fixing agent is 50 micrometers, and the particle size of the catalyst is 50 micrometers;
s3, mixing CO 2 Introducing into a fixed bed reactor, CO 2 The concentration is 50%;
s4, continuously introducing the heat energy obtained in the step S1 into a fixed bed reactor to carry out mineral carbonization reaction, wherein the heat energy is controlled at 600K;
s5, after the reaction is finished, separating the saturated silicate mineral carbon dioxide fixing agent from the catalyst by adopting a screening method, subsequently treating the carbon dioxide fixing agent, and returning the catalyst to the step S2 for recycling;
and S6, filling the silicate mineral generated after the reaction into the sea.
Example 2
This example utilizes solar photothermal catalysis of minerals to permanently sequester CO 2 The photo-thermal device comprises a quartz tube 1, a film 2 and a vacuum layer 3 except the step S1, wherein the outer surface of the quartz tube 1A film 2 is covered on the vacuum layer 3, the film 2 is a Cr film, the pressure of the vacuum layer 3 is 1.2 multiplied by 10 -3 Pa; s2, the silicate mineral carbon dioxide fixing agent is olivine containing calcium and magnesium elements, the particle size of the silicate mineral carbon dioxide fixing agent is 200 mu m, and the particle size of the catalyst is 200 mu m; the reactor in the step S3 is a fluidized bed reactor, and CO 2 The concentration is 100%; s4, controlling the heat energy to be 1000K; s5, reselection separation is adopted for separation; the procedure of example 1 was repeated except that the silicate mineral was buried in the landfill at step S6.
Example 3
This example utilizes solar photothermal catalysis of minerals for permanent CO sequestration 2 The method comprises the steps except the step S2, wherein the silicate mineral carbon dioxide fixing agent is serpentine containing calcium and magnesium, the particle size of the silicate mineral carbon dioxide fixing agent is 125 mu m, and the particle size of the catalyst is 75 mu m; s3 step the reactor is a moving bed reactor, CO 2 The concentration is 75%; s4, controlling the heat energy at 800K, and performing dry carbon fixation in a direct carbonization route of mineral carbonization reaction, wherein the liquid-solid ratio of the dry carbon fixation is 0.10; s5, magnetic separation is adopted for separation in the step; the silicate minerals are deposited outside the mine in the step S6, and the procedure is the same as in example 1.
Example 4
This example utilizes solar photothermal catalysis of minerals to permanently sequester CO 2 The method of (3), except for the step (S2), the silicate mineral carbon dioxide fixing agent is talc containing calcium and magnesium, the particle size of the silicate mineral carbon dioxide fixing agent is 130 μm, and the particle size of the catalyst is 60 μm; the reactor in the step S3 is a trickle bed reactor and CO 2 The concentration is 70%; s4, controlling the heat energy at 900K, and directly carbonizing the dry-method solid carbon in the direct carbonization route of the mineral carbonization reaction, wherein the liquid-solid ratio of the dry-method solid carbon is 0.15; s5, magnetic separation is adopted for separation in the step; step S6 silicate minerals were used as building raw materials, and the rest was the same as in example 1.
Example 5
This example utilizes solar photothermal catalysis of minerals to permanently sequester CO 2 The method comprises the steps except the step S2, wherein the silicate mineral carbon dioxide fixing agent is basalt containing calcium and magnesium, the particle size of the silicate mineral carbon dioxide fixing agent is 120 mu m, and the catalyst is preparedThe grain diameter is 80 μm; s3, the reactor is a fixed bed reactor, CO 2 The concentration is 60%; s4, controlling the heat energy at 700K, and directly carbonizing the dry-method solid carbon in the route of mineral carbonization reaction, wherein the liquid-solid ratio of the dry-method solid carbon is 0.19; s5, screening separation is adopted in the separation in the step; step S6 the silicate mineral was used as a building material, and the rest was the same as in example 1.
Claims (9)
1. Permanent CO sequestration utilizing solar photo-thermal catalysis of minerals 2 The method is characterized by comprising the following steps:
s1, absorbing sunlight in a photo-thermal device and converting light energy into heat energy;
s2, filling a silicate mineral carbon dioxide fixing agent and a catalyst into a reactor after mixing;
s3, mixing CO 2 Introducing into a reactor;
s4, continuously introducing the heat energy obtained in the step S1 into a reactor to perform mineral carbonization reaction;
s5, after the reaction is finished, separating the saturated silicate mineral carbon dioxide fixing agent from the catalyst, carrying out subsequent treatment on the carbon dioxide fixing agent, and returning the catalyst to the step S2 for recycling;
and S6, permanently storing the silicate mineral generated after the reaction or using the silicate mineral as a building raw material.
2. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method is characterized in that the photo-thermal device comprises a quartz tube (1), a film (2) and a vacuum layer (3), the film (2) covers the outer surface of the quartz tube (1), the vacuum layer (3) covers the film (2), the film (2) is a Cr film, and the pressure of the vacuum layer (3) is 1.2 multiplied by 10 -3 Pa。
3. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method is characterized in that the silicate mineral carbon dioxide fixing agent in the step S2 is wollastonite, olivine, serpentine, talc and brown stone containing calcium and magnesium elementsOne kind of Wuyan rock.
4. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method is characterized in that the reactor in the step S2 is a reactor of a solid particle bed layer and is one of a fixed bed reactor, a fluidized bed reactor, a moving bed reactor and a trickle bed reactor.
5. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 Characterized in that CO as described in step S3 2 The concentration is 50% -100%.
6. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method is characterized in that the heat energy in the step S4 is controlled to be 600K-1000K.
7. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method is characterized in that dry carbon fixation in a direct carbonization route of mineral carbonization reaction in the step S4 is performed, wherein the liquid-solid ratio of the dry carbon fixation is lower than 0.2, and the carbonization rate is 50-90% under the 673K reaction condition.
8. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method is characterized in that the particle size of the catalyst is 50-200 mu m, the particle size of the silicate mineral carbon dioxide fixing agent is 50-100 mu m, and the separation method of the catalyst and the silicate mineral carbon dioxide fixing agent in the S5 step is one of screening, gravity separation and magnetic separation.
9. The method of claim 1, wherein the solar photothermal catalysis of minerals is utilized to permanently sequester CO 2 The method of (2), wherein the permanent sealing in step (S6) is one of sea filling, landfill, and mine piling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211104000.7A CN115504811B (en) | 2022-09-09 | 2022-09-09 | Solar photo-thermal catalytic mineral permanent CO sealing 2 Is a method of (2) |
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| CN202211104000.7A CN115504811B (en) | 2022-09-09 | 2022-09-09 | Solar photo-thermal catalytic mineral permanent CO sealing 2 Is a method of (2) |
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| CN115504811B CN115504811B (en) | 2023-09-22 |
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Citations (9)
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|---|---|---|---|---|
| US20090169452A1 (en) * | 2007-12-28 | 2009-07-02 | Constantz Brent R | Methods of sequestering co2 |
| US20100221163A1 (en) * | 2009-02-27 | 2010-09-02 | Caterpillar Inc. | Method to sequester co2 as mineral carbonate |
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| CN102198367A (en) * | 2011-03-17 | 2011-09-28 | 青岛科技大学 | Technology for carbon solidification, base manufacture, soil make and sand control |
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| CN114751372A (en) * | 2022-03-12 | 2022-07-15 | 昆明理工大学 | Method for fixing carbon dioxide in water-gas shift process by utilizing real-time carbonization of silicate |
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2022
- 2022-09-09 CN CN202211104000.7A patent/CN115504811B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090169452A1 (en) * | 2007-12-28 | 2009-07-02 | Constantz Brent R | Methods of sequestering co2 |
| US20100221163A1 (en) * | 2009-02-27 | 2010-09-02 | Caterpillar Inc. | Method to sequester co2 as mineral carbonate |
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| CN114751372A (en) * | 2022-03-12 | 2022-07-15 | 昆明理工大学 | Method for fixing carbon dioxide in water-gas shift process by utilizing real-time carbonization of silicate |
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