CN114471132B - Additive for carbon mineralization product and preparation method and application thereof - Google Patents

Additive for carbon mineralization product and preparation method and application thereof Download PDF

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Publication number
CN114471132B
CN114471132B CN202111674577.7A CN202111674577A CN114471132B CN 114471132 B CN114471132 B CN 114471132B CN 202111674577 A CN202111674577 A CN 202111674577A CN 114471132 B CN114471132 B CN 114471132B
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carbon
additive
change material
phase change
solid
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CN114471132A (en
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马韵升
崔东波
李林丽
陈超
张国圣
吴文选
张学雷
张童鑫
李红丽
翟学成
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Shandong Hanbo Yuzhou New Material Co ltd
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Shandong Hanbo Yuzhou New Material Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81Solid phase processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/62Carbon oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/50Carbon oxides
    • B01D2257/504Carbon 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)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention belongs to the technical field of carbon dioxide mineralization, and in particular relates to an additive for a carbon mineralization product, a preparation method and application thereof. The additive is applied to a carbon mineralization product, can assist the carbon mineralization product to establish an effective carbon mineralization channel, improves the homogeneity of materials, obviously improves the carbon fixing capability of the carbon mineralization product and has lower production energy consumption.

Description

Additive for carbon mineralization product and preparation method and application thereof
Technical Field
The invention belongs to the technical field of carbon dioxide mineralization, and particularly relates to an additive for a carbon mineralization product, and a preparation method and application thereof.
Background
In recent years, atmospheric CO has been affected by human activities such as fossil fuel combustion 2 The content is increased suddenly, and the global threat of climate warming, sea level rising and the like is caused by the heat preservation effect. Carbon dioxide sequestration is becoming a research hotspot, where carbon mineralization technology is considered to be the most powerful carbon sequestrationSealing technology for potential and application prospect, which seals CO 2 Is fixed in carbon-carrying substances to achieve the aim of efficiently sealing CO 2 Is a target of (a).
However, the carbon mineralization reaction has the characteristic of diffusion carbonization from outside to inside, and as the carbon mineralization reaction proceeds, the surface density of the material increases, the carbon mineralization channels gradually decrease, and CO is prevented 2 Diffuse into the interior of the material, thereby affecting the carbon fixation effect and the quality of the carbon mineralized product. Conditions affecting the carbon mineralization reaction at the present stage include pressure, solid-liquid ratio, gas humidity, solid particle size and the like, but optimizing the reaction conditions cannot fundamentally solve the influence of a product carbon mineralization channel, carbon mineralization efficiency and carbon mineralization depth on the later carbonization maintenance of the product.
Disclosure of Invention
In view of the above, the present invention provides an additive for a carbon mineralization product, which can assist the carbon mineralization product to establish an effective carbon mineralization channel, accelerate the absorption rate of carbon dioxide, and significantly improve the carbon fixation effect.
The technical scheme of the invention is as follows:
in one aspect, the invention provides an additive for a carbon mineralization article, the additive comprising a solid-liquid phase change material and a porous material, the solid-liquid phase change material being wrapped on the surface of the porous material.
Preferably, the phase transition temperature interval of the solid-liquid phase transition material is 35-70 ℃.
Preferably, the solid-liquid phase change material is one of paraffin, paraffin-expanded perlite composite phase change material, paraffin-low density polyethylene composite phase change material, polyimide and binary fatty acid.
Preferably, the porous material is one or more of hollow glass fiber, zeolite, mesoporous silica, slag, gangue slag, pumice and the like. It should be noted that the size of the porous material in the additive is related to the size of the finished product of the carbonaceous mineralized product and the size of the particle size of the raw material, especially the larger the size of the finished product is, the larger the size of the carbonaceous mineralized product is, and the larger the maximum size of the porous material can be, the proper size can be determined through a limited number of experiments, and the invention is not limited in this respect.
The second aspect of the present invention provides a process for preparing the above additive comprising the steps of:
s1, rapidly stirring a solid-liquid phase change material under heat treatment until the solid-liquid phase change material is completely in a liquid state;
s2, sieving the porous material, and adding the sieved porous material into the liquid phase change material according to a certain proportion for uniform mixing;
s3, packaging the mixture obtained in the step S2.
Preferably, the temperature of the heat treatment is 50-100 ℃, and the time of the heat treatment is 10-30 min.
Preferably, the mass ratio of the porous material to the solid-liquid phase material in the step S2 is 100:5-20.
Preferably, the encapsulation treatment mode is one of soaking adsorption, shaping of high polymer and microencapsulation; more preferably, the encapsulation treatment is microencapsulation. It should be noted that, the above packaging manner is a common packaging manner of phase change materials, and specific operations may refer to the prior art and will not be described again.
In a third aspect, the invention provides the use of said additive in the preparation of a carbon mineralized article, the additive being added in an amount of greater than 0 and less than or equal to 30% by weight. The carbon mineralization product is capable of fixing CO 2 Specifically comprising the fixation of CO by adsorption 2 And using CO 2 Reacts with silicate minerals (natural minerals or industrial waste rich in Ca, mg and the like) to generate stable carbonate products so as to fix CO 2 Is a product of (a).
The beneficial effects of the invention are as follows: the additive can establish a carbonization channel in the carbon mineralization product, so that the uniform maintenance of carbon dioxide is realized, the homogeneity of the material is improved, and the condition of clamping is avoided; the porous material is utilized to establish a moisture channel, and the opening and closing of the channel are controlled through the state change of the phase change material, so that the free exchange of water vapor is realized, and the defect of expansion stress caused by overlarge internal vapor pressure is avoided; under the same pressure, the additive can make the mineralization depth of carbon in the mineralized product prefabricated member deeper, the carbonization is more complete, and the carbonization energy consumption is lower.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
An additive for a carbon mineralized article, the preparation process comprising: taking 500 parts of slag and 50 parts of paraffin-low density polyethylene composite phase-change material, stirring the paraffin-low density polyethylene composite phase-change material at 80 ℃ for 20min, adding the slag, uniformly mixing, and carrying out microencapsulation treatment.
Adding the additive into the raw materials of the carbon mineralized product according to the mixing amount of 0%, 2%, 4%, 6%, 8% and 10% (mass fraction) of the carbon mineralized product, stirring and mixing uniformly, and carbonizing the formed product prefabricated member for 24 hours under the carbonization pressure of 0.1MPa and the carbonization temperature of 50 ℃ to obtain the finished product. The raw material of the carbon mineralized products in this example is industrial waste containing silicate.
Example 2
An additive for a carbon mineralized article, the preparation process comprising: taking 600 parts of slag and 100 parts of paraffin-low density polyethylene, stirring the paraffin-low density polyethylene composite phase-change material at 80 ℃ for 20min, adding the slag, uniformly mixing, and carrying out microencapsulation treatment.
The additive is added into raw materials (industrial waste material same as that of the example 1) of the carbon mineralized product according to the mixing amount of 0 percent and 6 percent (mass fraction) of the carbon mineralized product, and the mixture is stirred and mixed uniformly, and a pressing process is adopted to carry out 1h, 12h, 24h, 36h, 48h and 72h on a formed product prefabricated member under the condition of the carbonization pressure of 0.1MPa and 50 ℃.
Example 3
An additive for a carbon mineralized article, the preparation process comprising: taking 300 parts of hollow glass fiber and 20 parts of paraffin-expanded perlite composite phase-change material, stirring the paraffin-low density polyethylene composite phase-change material at 70 ℃ for 30min, adding the hollow glass fiber, uniformly mixing, and carrying out microencapsulation treatment.
The additive is added into raw materials of a carbon mineralized product (the same industrial waste as in example 1) according to the doping amount of 6 percent of the carbon mineralized product, and the raw materials are stirred and mixed uniformly, and a pressing process is adopted to carbonize the formed product prefabricated member for 24 hours under the condition of the carbonization pressure of 0.1MPa and the temperature of 50 ℃ to obtain a finished product.
Example 4
An additive for a carbon mineralized article, the preparation process comprising: taking 500 parts of slag and 50 parts of paraffin-low density polyethylene composite phase-change material, stirring the paraffin-low density polyethylene composite phase-change material at 80 ℃ for 20min, adding the slag, uniformly mixing, and carrying out soaking adsorption treatment.
The additive is added into raw materials (same industrial waste as in example 1) of the carbon mineralized product according to the doping amount of 8 percent of the carbon mineralized product, and the raw materials are stirred and mixed uniformly, and the formed product prefabricated member is carbonized for 24 hours under the condition of the carbonization pressure of 0.1MPa and the carbonization pressure of 50 ℃ to obtain a finished product.
The carbon fixation rates of the products prepared in the above examples at different additive amounts in example 1 are shown in table 1, wherein the carbon fixation rate is measured by:
carbon fixation = (oven dry mass of carbonized product-oven dry mass of carbonized product)/(oven dry mass of carbonized product).
TABLE 1
Additive amount (%) 0 2 4 6 8 10
Carbon fixation (percent) 5 10 16 23 31 38
The carbon mineralization depth test was carried out by the burn-out method using the products of example 1 with 0% and 8% of the additive, and the test results are shown in table 2.
TABLE 2
Mineralization depth (cm) 1 2 3 4 5
Degree of carbonization without additives (%) 20 18 10 6 3
The additive content was 8% carbonization (%) 37 35 30 25 15
The products prepared in example 2 at different carbonization times were subjected to flexural and compressive strength tests, and the results are shown in Table 3.
TABLE 3 Table 3
Carbonization time (h) 1 12 24 36 48 72
Compressive Strength (MPa) at 6% blend 9 13 16 18 20 23
Additive-free compressive Strength (MPa) 5 6.8 11 13 15.5 17
Flexural strength (MPa) of 6% by weight 1.5 2.8 4.2 4.4 4.6 5
Flexural Strength (MPa) without additives 0.8 1.8 2.5 3 3.2 3.4
From the conclusion, the additive prepared by the invention can effectively improve the depth and degree of carbon mineralization of the product, and ensures that the product has enough compression resistance and bending strength.
According to the invention, the porous material is taken as a framework, and is modified by adopting the solid-liquid phase change material, and the modified porous material can construct a carbon mineralization reaction channel in the prefabricated member, so that moisture and carbon dioxide gas can freely migrate in the carbon mineralization process, and the rapid and uniform reaction of carbon dioxide in the prefabricated member under the low pressure condition is realized, thereby solving the problem of 'inside-outside difference' caused by different carbonization degrees of the prefabricated member.
More importantly, the phase change material introduced by the invention solidifies and plugs pores at normal temperature, avoids the negative influence of high water absorbability of the pores on the working performance of the material, and generates phase change reaction under the thermal condition of carbon mineralization reaction (exothermic reaction), thereby realizing the regulation and control of the pore state of the porous material, and specifically comprises the following steps: in the carbon mineralization process, the phase change material is melted, a channel is opened, free exchange and migration of water and gas are realized, and the defect of internal expansion stress of the material caused by overhigh internal water vapor pressure due to overhigh carbon mineralization reaction speed is avoided; after mineralization reaction is completed, when the temperature is restored to normal temperature, the phase change material is solidified to block the air holes, thereby blocking the corrosion and pollution of harmful impurities in the environment to the inside of the product and improving the durability of the carbonized product. In addition, the product prepared in the example 4 is slightly lower than the products prepared in the examples 1 and 2 in terms of carbon fixation rate and fracture and compression strength, which shows that the microencapsulation mode is more beneficial to playing the role of the additive; the microcapsule packaging mode continuously wraps the surface of the porous material with a film formed by the phase change material, so that the structural performance of the porous material is not damaged in the prefabrication process, the microcapsule form is damaged due to carbonization pressure and flow friction of gas in the carbon mineralization process, and the part of the porous material is exposed, so that the function of constructing a carbon mineralization water-gas channel is achieved.
It should be noted that the phase transition temperature of the solid-liquid phase change material has an important influence on the additive effect, and the solid-liquid phase change material should realize solid-liquid state transition under the reaction heat of the product carbon mineralization process, so as to ensure the opening of the pores of the porous material, and after the reaction is finished and the normal temperature is restored, the solid-liquid phase change material is solidified again to form a solid, so that the pores of the porous material are plugged. Therefore, according to the reaction heat in the carbon mineralization process, the phase change temperature interval of the solid-liquid phase change material is determined to be 35-70 ℃, and when the inventors use the phase change material with the phase change temperature interval of more than 70 ℃ to encapsulate slag, the formed additive is in an equivalent doping amount (the raw materials of the used carbon mineralization product are the same as those of the embodiment 1), and the carbon fixation rate of the obtained product is obviously lower than that of the embodiment 1.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.

Claims (6)

1. An additive for a carbon mineralized article, characterized in that the additive comprises a solid-liquid phase change material and a porous material, the solid-liquid phase change material being wrapped on the surface of the porous material; the porous material is one or more of hollow glass fiber, zeolite, mesoporous silica, slag, gangue slag and pumice, the phase transition temperature interval of the solid-liquid phase change material is 35-70 ℃, and the solid-liquid phase change material is one of paraffin, paraffin-expanded perlite composite phase change material, paraffin-low density polyethylene composite phase change material, polyimide and binary fatty acid.
2. A process for preparing the additive of claim 1, comprising the steps of:
s1, rapidly stirring a solid-liquid phase change material under heat treatment until the solid-liquid phase change material is completely in a liquid state;
s2, sieving the porous material, and then adding the sieved porous material into the solid-liquid phase-change material for uniform mixing;
s3, packaging the mixture.
3. The method according to claim 2, wherein the temperature of the heat treatment is 50-100 ℃, and the time of the heat treatment is 10-30 min.
4. The method of claim 2, wherein the encapsulation is performed by one of soaking adsorption, shaping of a polymer, and microencapsulation.
5. The method of claim 4, wherein the encapsulation is by microencapsulation.
6. The use of the additive according to claim 1 for the preparation of a carbon mineralized article, wherein the additive is added in an amount of more than 0 and less than or equal to 30% by weight.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1896173A (en) * 2006-06-24 2007-01-17 浙江华特实业集团华特化工有限公司 Production of inorganic-phase variable composite material of membrane-coated porous adsorptive
JP2010142679A (en) * 2008-12-16 2010-07-01 Aisan Ind Co Ltd Heat storage medium-imparted combined adsorbing material and method for producing the same
CN103102869A (en) * 2011-11-09 2013-05-15 中国石油化工股份有限公司 Manufacturing method of phase change material
CN103752239A (en) * 2014-02-11 2014-04-30 北京科技大学 Preparation method of metal organic framework coated phase-change material microcapsule
CN106622140A (en) * 2015-11-03 2017-05-10 中国石油化工股份有限公司 Composite zeolitic imidazolate framework material as well as preparation method and application thereof
CN109650805A (en) * 2018-11-26 2019-04-19 徐州工程学院 A method of carbon sequestration fill paste is prepared using discarded concrete
CN110804422A (en) * 2019-11-18 2020-02-18 中南大学 Preparation method of paraffin-cement-based shape-stabilized phase change material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1896173A (en) * 2006-06-24 2007-01-17 浙江华特实业集团华特化工有限公司 Production of inorganic-phase variable composite material of membrane-coated porous adsorptive
JP2010142679A (en) * 2008-12-16 2010-07-01 Aisan Ind Co Ltd Heat storage medium-imparted combined adsorbing material and method for producing the same
CN103102869A (en) * 2011-11-09 2013-05-15 中国石油化工股份有限公司 Manufacturing method of phase change material
CN103752239A (en) * 2014-02-11 2014-04-30 北京科技大学 Preparation method of metal organic framework coated phase-change material microcapsule
CN106622140A (en) * 2015-11-03 2017-05-10 中国石油化工股份有限公司 Composite zeolitic imidazolate framework material as well as preparation method and application thereof
CN109650805A (en) * 2018-11-26 2019-04-19 徐州工程学院 A method of carbon sequestration fill paste is prepared using discarded concrete
CN110804422A (en) * 2019-11-18 2020-02-18 中南大学 Preparation method of paraffin-cement-based shape-stabilized phase change material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Development of leak-free phase change material aggregates";Sarra Drissi et al.;《Construction and Building Materials》;第230卷;全文 *

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