Coal water slurry and preparation method thereof

A technology of coal-water slurry and coal powder, which is applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of water-coke slurry stability deviation, high petroleum coke content, and less research, and achieve good stability , the effect of high coal slurry concentration and low water separation rate

Active Publication Date: 2022-01-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Terpolymer polymer compound type agent products are suitable for the production of high-concentration coal-water slurry, but there are few related studies on the production of high-concentration coal-water slurry under the condition of blending petroleum coke
[0008] Due to the high carbon content and low ash content of petroleum coke, the prepared water coke slurry has deviation stability and is easy to precipitate

Method used

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  • Coal water slurry and preparation method thereof
  • Coal water slurry and preparation method thereof
  • Coal water slurry and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The present embodiment provides a kind of coal-water slurry, based on the total mass of the coal-water slurry, comprising the following components by weight: 80 parts of coal powder, 20 parts of petroleum coke, 20 parts of water, and the described coal-water slurry also contains additives, The content of the additive is 0.15% of the total mass of coal powder and petroleum coke.

[0037] Present embodiment also provides a kind of preparation method of coal-water slurry, comprises the following steps:

[0038]Dissolve 5 parts by weight of naphthalene at 160°C; carry out sulfonation reaction with 20 parts by weight of sulfuric acid to generate β-naphthalenesulfonic acid; mix the obtained β-naphthalenesulfonic acid with 15 parts by weight of formaldehyde , the styrene of 8 weight parts, the maleic acid of 1 weight part carry out condensation reaction; Carry out cooling again, add the liquid caustic soda of 36 weight parts and the water of 15 weight parts to carry out hydrol...

Embodiment 2

[0042] The present embodiment provides a kind of coal-water slurry, based on the total mass of the coal-water slurry, comprising the following components by weight: 80 parts of coal powder, 20 parts of petroleum coke, 20 parts of water, and the described coal-water slurry also contains additives, The content of the additive is 0.15% of the total mass of coal powder and petroleum coke.

[0043] Present embodiment also provides a kind of preparation method of coal-water slurry, comprises the following steps:

[0044] Dissolve 10 parts by weight of naphthalene at 165°C; carry out sulfonation reaction with 10 parts by weight of sulfuric acid to generate β-naphthalenesulfonic acid; mix the obtained β-naphthalenesulfonic acid with 8 parts by weight of formaldehyde , the styrene of 1 weight part, the maleic acid of 5 weight parts carry out condensation reaction; Carry out cooling again, add the liquid caustic soda of 40 weight parts and the water of 25 weight parts to carry out hydro...

Embodiment 3

[0048] The present embodiment provides a kind of coal-water slurry, based on the total mass of the coal-water slurry, comprising the following components by weight: 80 parts of coal powder, 20 parts of petroleum coke, 20 parts of water, and the described coal-water slurry also contains additives, The content of the additive is 0.15% of the total mass of coal powder and petroleum coke.

[0049] Present embodiment also provides a kind of preparation method of coal-water slurry, comprises the following steps:

[0050] Dissolve 10 parts by weight of naphthalene at 163°C; carry out sulfonation reaction with 20 parts by weight of sulfuric acid to generate β-naphthalenesulfonic acid; dissolve the obtained β-naphthalenesulfonic acid with 15 parts by weight of formaldehyde , the styrene of 5 weight parts, the maleic acid of 5 weight parts carry out condensation reaction; Carry out cooling again, add the liquid caustic soda of 20 weight parts and the water of 25 weight parts to carry ou...

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Abstract

The invention discloses coal water slurry and a preparation method thereof, and belongs to the technical field of chemical industry raw materials. The coal water slurry comprises the following components in parts by weight based on the total mass of the coal water slurry: 70-80 parts of coal powder, 20-30 parts of petroleum coke and 20-30 parts of water, and further comprises an additive, wherein the content of the additive is 0-0.15% of the total mass of the coal powder and the petroleum coke, but is not 0, and the additive is prepared from a methylene naphthalene sulfonate-styrene sulfonate-maleate high-molecular polymer, sodium lignin sulfonate, sodium hydroxide, hydroxyethyl cellulose and sodium polyacrylate. The obtained coal water slurry is high in coal slurry concentration, low in 24-hour bleeding rate, good in stability, free of hard precipitation and good in stability and flowability.

Description

technical field [0001] The invention relates to a coal-water slurry and a preparation method thereof, belonging to the technical field of chemical raw materials. Background technique [0002] Coal water slurry preparation technology is to crush raw coal, a certain amount of water and additives through crushing, grinding and shearing, etc., and then prepare a liquid mixture that meets the requirements, which is used for coal water slurry boilers or gasifiers, and has stable combustion and pollution discharge. Less advantages. Coal water slurry technology has the advantages of low investment, high technology maturity and high degree of localization, especially when it is used to synthesize methanol, it can realize isobaric synthesis, and when it is used to synthesize ammonia, it can reduce the investment cost of the transformation section. In particular, coal-water slurry gasification technologies such as the multi-nozzle opposed coal-water slurry gasifier and the water-coole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
CPCC10L1/326
Inventor 关志鹏王占新周南强赖作通王召光谢志翔张行吴正阳
Owner CHINA PETROLEUM & CHEM CORP
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