CN112759374B - Anti-coking agent for hazardous waste incineration line and preparation method thereof - Google Patents
Anti-coking agent for hazardous waste incineration line and preparation method thereof Download PDFInfo
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- CN112759374B CN112759374B CN202011632289.0A CN202011632289A CN112759374B CN 112759374 B CN112759374 B CN 112759374B CN 202011632289 A CN202011632289 A CN 202011632289A CN 112759374 B CN112759374 B CN 112759374B
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
Abstract
The invention discloses an anti-coking agent for a hazardous waste incineration line, which comprises the following components in percentage by mass: 40 to 70 percent of sintered alumina; 10 to 25 percent of sintered calcium oxide; 10 to 30 percent of sintered silicon oxide; 5 to 10 percent of clay; 0 to 5 percent of auxiliary agent; the sum of the mass percentages of the components is 100 percent. The anti-coking agent can improve the melting temperature of the hazardous waste material, reduce the coking risk and improve the operation state of a hazardous waste incineration line.
Description
Technical Field
The invention particularly relates to an anti-coking agent for a hazardous waste incineration line and a preparation method thereof.
Background
When the dangerous useless line that burns is burning the wastes material, because the more and composition of the kind of waste material is complicated, the thing that produces the low melting point in the course of the treatment is attached to equipment wall and pipeline and is leaded to burning the line and be in relatively poor operation state. In order to improve the phenomenon, the development of an anti-coking agent for a hazardous waste incineration line is needed.
Disclosure of Invention
The invention aims to solve the problems and provides an anti-coking agent for a hazardous waste incineration line and a preparation method thereof, which can improve the melting temperature of waste and reduce the coking risk.
The purpose of the invention is realized as follows:
the invention relates to an anti-coking agent for a hazardous waste incineration line, which comprises the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
The auxiliary agent in the anti-coking agent for the hazardous waste incineration line is at least one selected from sintered magnesium oxide, phosphoric acid and boric acid.
The anti-coking agent for the hazardous waste incineration line comprises the following components in percentage by mass: 40% of sintered alumina, 25% of sintered calcium oxide, 30% of sintered silicon oxide and 5% of clay.
The anti-coking agent for the hazardous waste incineration line comprises the following components in percentage by mass: 70% of sintered alumina, 10% of sintered calcium oxide, 10% of sintered silicon oxide and 10% of clay.
The particle sizes of sintered alumina, sintered calcium oxide, sintered silicon oxide, clay and auxiliary agent in the anti-coking agent for the hazardous waste incineration line are all smaller than 250 meshes
The invention provides a preparation method of an anti-coking agent for a hazardous waste incineration line, which comprises the following steps:
(1) Preparing raw materials according to the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent;
(2) And (2) putting the material obtained in the step (1) into a ball mill for mixing and crushing, and preparing a finished product with the particle size of 250-350 meshes by classification control.
The anti-coking agent for the hazardous waste incineration line and the preparation method thereof are developed according to the incineration temperature characteristics of the hazardous waste incineration line, and the anti-coking agent can improve the melting temperature of hazardous waste materials, reduce the coking risk and improve the operation state of the hazardous waste incineration line.
Drawings
FIG. 1 is a graph showing AFT test results of a hazardous waste sample and hazardous waste samples to which the anti-coking agents of examples 1 to 3 were added, respectively.
Detailed Description
The present invention will be further described with reference to the following examples.
The invention discloses an anti-coking agent for a hazardous waste incineration line, which comprises the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent.
The auxiliary agent is at least one selected from sintered magnesia, phosphoric acid and boric acid.
The invention also provides a preparation method of the anti-coking agent for the hazardous waste incineration line, which comprises the following steps:
(1) Preparing raw materials according to the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent;
(2) And (2) putting the material obtained in the step (1) into a ball mill for mixing and crushing, and preparing a finished product with the particle size of 250-350 meshes by classification control.
Formulation of example 1: 30% of sintered alumina (YND-L-90), 30% of sintered calcium oxide (YB/T042-2004), 30% of sintered silicon oxide (MG-SiO 2-15), 5% of clay, 2% of phosphoric acid and 3% of boric acid.
Formulation of example 2: 40% of sintered alumina (YND-L-90), 25% of sintered calcium oxide (YB/T042-2004), 30% of sintered silicon oxide (MG-SiO 2-15) and 5% of clay;
formulation of example 3: 70% of sintered alumina (YND-L-90), 10% of sintered calcium oxide (YB/T042-2004), 10% of sintered silicon oxide (MG-SiO 2-15) and 10% of clay.
The hazardous waste sample and the hazardous waste sample respectively added with the anti-coking agents of the embodiments 1-3 are subjected to AFT test, the result is shown in figure 1, and the figure shows that the scheme of the embodiment 1 does not play a role in improving the ash melting point of the sample; while example 2 increased the deformation temperature of the sample from 1050 to 1100 degrees; example 3 the deformation temperature of the sample was increased from 1050 degrees to 1300 degrees.
The sintered alumina used in the invention is porous alumina, the sintered silica is porous sintered silica, the calcium oxide is sintered by common calcium oxide, and the components have larger specific surface area and are easy to combine with slag bonding substances in flue gas, so that the melting point of slag is uniformly improved.
The anti-coking agent can improve the melting temperature of the hazardous waste material, reduce the coking risk and improve the operation state of a hazardous waste incineration line.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (4)
1. An anti-coking agent for a hazardous waste incineration line is characterized by comprising the following components in percentage by mass:
40 to 70 percent of sintered alumina;
10 to 25 percent of sintered calcium oxide;
10 to 30 percent of sintered silicon oxide;
5 to 10 percent of clay;
wherein the particle sizes of the sintered alumina, the sintered calcium oxide, the sintered silica and the clay are all less than 250 meshes;
the sintered alumina is porous alumina, and the sintered silica is porous sintered silica.
2. The anti-coking agent for the hazardous waste incineration line according to claim 1, characterized by consisting of the following components in percentage by mass: 40% of sintered alumina, 25% of sintered calcium oxide, 30% of sintered silicon oxide and 5% of clay.
3. The anti-coking agent for the hazardous waste incineration line according to claim 1, characterized by consisting of the following components in percentage by mass: 70% of sintered alumina, 10% of sintered calcium oxide, 10% of sintered silicon oxide and 10% of clay.
4. The method for preparing the anti-coking agent for the hazardous waste incineration line according to claim 1, characterized by comprising the following steps:
(1) Preparing raw materials according to the following components in percentage by mass:
40 to 70 percent of sintered alumina;
10 to 25 percent of sintered calcium oxide;
10 to 30 percent of sintered silicon oxide;
5 to 10 percent of clay;
the sum of the mass percentages of the components is 100 percent;
(2) And (2) putting the material obtained in the step (1) into a ball mill for mixing and crushing, and preparing a finished product with the particle size of 250-350 meshes by classification control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632289.0A CN112759374B (en) | 2020-12-31 | 2020-12-31 | Anti-coking agent for hazardous waste incineration line and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632289.0A CN112759374B (en) | 2020-12-31 | 2020-12-31 | Anti-coking agent for hazardous waste incineration line and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112759374A CN112759374A (en) | 2021-05-07 |
| CN112759374B true CN112759374B (en) | 2023-03-24 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2784396B1 (en) * | 1998-10-09 | 2000-11-10 | Commissariat Energie Atomique | ANTI-COCK COATINGS OF REFRACTORY ALLOYS USED IN THE OIL FIELD |
| CN102585963B (en) * | 2012-02-08 | 2013-12-11 | 广东电网公司电力科学研究院 | Biomass boiler anti-coking agent with porous membrane structure and preparation method thereof |
| CN103232876A (en) * | 2013-05-27 | 2013-08-07 | 深圳市明灯科技有限公司 | Boiler coking inhibitor |
| CN110923014A (en) * | 2019-10-28 | 2020-03-27 | 中国寰球工程有限公司 | Fluxing agent for adjusting melting characteristic of high-sulfur petroleum coke gasification ash and application thereof |
| CN111594853A (en) * | 2020-04-30 | 2020-08-28 | 山东清博生态材料综合利用有限公司 | Coke inhibitor for hazardous waste incineration kiln |
| CN111748396A (en) * | 2020-06-05 | 2020-10-09 | 中节能（连云港）清洁技术发展有限公司 | Coke inhibitor and preparation method and application thereof |
| CN111621349A (en) * | 2020-06-11 | 2020-09-04 | 上海甚恒生物科技有限公司 | Anti-coking agent for waste residue boiler and adding method |
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