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An environmental protection treatment type coal water slurry additive suitable for coal chemical coal water slurry pulping waste mixing process, its preparation method and use

A technology of coal water slurry and coal chemical industry, which is applied in the field of coal chemical industry, can solve the problems of poor adaptability of coal types, poor stability, and low effective gas yield of coal water slurry, and achieve the goal of increasing effective gas yield and reducing adaptability requirements Effect

Active Publication Date: 2017-04-26
宜兴市星光宝亿化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing coal-water slurry additives have poor adaptability to coal types, and specific additives need to be developed for a certain coal type, and the prepared coal-water slurry has low effective gas yield and poor stability
Chinese patent 97107094.6 discloses a ternary copolymer polymer compound used as an additive to coal water slurry, but the effect of using this type of material alone under the condition of waste mixing is not ideal

Method used

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  • An environmental protection treatment type coal water slurry additive suitable for coal chemical coal water slurry pulping waste mixing process, its preparation method and use
  • An environmental protection treatment type coal water slurry additive suitable for coal chemical coal water slurry pulping waste mixing process, its preparation method and use
  • An environmental protection treatment type coal water slurry additive suitable for coal chemical coal water slurry pulping waste mixing process, its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Get the water that is 8.6% naphthalene, 14% sulfuric acid, 37% liquid caustic soda, 11% formaldehyde, 5% styrene, 3% octylphenol and 21.4% water by weight, put naphthalene at 160-165 ℃ Dissolve naphthalene under low temperature; then carry out sulfonation reaction with sulfuric acid to generate β-naphthalenesulfonic acid; conduct condensation reaction with formaldehyde, styrene and octylphenol on the obtained β-naphthalenesulfonic acid at 105-110°C; then lower the temperature Cool, put concentrated sulfuric acid at 70-80°C for secondary reaction; then continue to cool down, add liquid caustic soda at 40-50°C for hydrolysis reaction to obtain methylene naphthalenesulfonate-styrenesulfonate-octyl Based phenate polymer water agent.

[0022] Components in percentage by weight: 30% methylene naphthalene sulfonate-styrene sulfonate-octylphenate polymer water, 30% sodium lignosulfonate, 4% sodium carbonate, 5% carboxymethyl cellulose, 1% dioctyl sulfosuccinate sodium penetran...

Embodiment 2

[0024] Get the water that is 8.6% naphthalene, 14% sulfuric acid, 37% liquid caustic soda, 11% formaldehyde, 5% styrene, 3% octylphenol and 21.4% water by weight, put naphthalene at 160-165 ℃ Dissolve naphthalene under low temperature; then carry out sulfonation reaction with sulfuric acid to generate β-naphthalenesulfonic acid; conduct condensation reaction with formaldehyde, styrene and octylphenol on the obtained β-naphthalenesulfonic acid at 105-110°C; then lower the temperature Cool, put concentrated sulfuric acid at 70-80°C for secondary reaction; then continue to cool down, add liquid caustic soda at 40-50°C for hydrolysis reaction to obtain methylene naphthalenesulfonate-styrenesulfonate-octyl Based phenate polymer water agent.

[0025] Components in percentage by weight: 30% methylene naphthalene sulfonate-styrene sulfonate-octylphenate high molecular polymer water agent, 26% sodium lignosulfonate, 6% sodium carbonate, 8% carboxymethyl cellulose, 5% dioctyl sulfosucc...

Embodiment 3

[0027] Get the water that is 8.6% naphthalene, 14% sulfuric acid, 37% liquid caustic soda, 11% formaldehyde, 5% styrene, 3% octylphenol and 21.4% water by weight, put naphthalene at 160-165 ℃ Dissolve naphthalene under low temperature; then carry out sulfonation reaction with sulfuric acid to generate β-naphthalenesulfonic acid; conduct condensation reaction with formaldehyde, styrene and octylphenol on the obtained β-naphthalenesulfonic acid at 105-110°C; then lower the temperature Cool, put concentrated sulfuric acid at 70-80°C for secondary reaction; then continue to cool down, add liquid caustic soda at 40-50°C for hydrolysis reaction to obtain methylene naphthalenesulfonate-styrenesulfonate-octyl Based phenate polymer water agent.

[0028] Components in percentage by weight: 35% methylene naphthalene sulfonate-styrene sulfonate-octylphenate high molecular polymer aqua, 27% sodium lignosulfonate, 5% sodium carbonate, 8% % carboxymethyl cellulose, 5% dioctyl sulfosuccinate...

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Abstract

The invention discloses an environmentally-friendly treatment type coal water slurry additive suitable for a coal chemical industry coal water slurry preparing and waste mixing technology. The additive comprises, by weight, 30-40% of a methylene naphthalene sulfonate-styrene sulfonate-octyl phenate high-molecular polymer aqua, 25-30% of sodium lignosulfonate, 2-6% of sodium carbonate, 2-8% of carboxymethyl cellulose, 1-5% of sodium diethylhexyl sulfosuccinate and 20-30% of water. The invention also discloses a preparation method and a use of the additive. Compared traditional additives, the additive disclosed in the invention has the advantages of reduction of the addition amount of the additive to every liter of a prepared coal water slurry by 0.2-0.6%, increase of the coal slurry effective gas yield by 0.5-2%, further reduction of requirements of adaptability to the type of coal water slurry gasified coal, and realization of coal blending slurry preparation, still can reach expected effects when the admixture amount of wastewater and wastes does not reach 8%, and is suitable for being used by general coal water slurry technology coal chemical industry enterprises.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, and in particular relates to an environment-friendly treatment type coal-water slurry additive suitable for coal-water slurry pulping and waste mixing process in coal chemical industry, a preparation method and application. Background technique [0002] Coal water slurry additive is a kind of chemical additive widely used in coal water slurry combustion, gasification and transportation projects. At present, the exploitation of oil has gradually failed to keep up with the use. Many countries have invested considerable manpower and financial resources in the rational development of alternative oil resources, and developed technologies that use high-quality coal to replace oil, such as coal-to-synthetic ammonia, coal-to-methanol, Coal H 2 And so on coal water slurry technology. The application of this technology must use high-efficiency and low-cost coal-water slurry additives for pulping. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/236C10L1/12C10L1/192C10L1/24C08G81/02
CPCC08G81/024C10L1/1233C10L1/14C10L1/192C10L1/236C10L1/2437C10L2300/20
Inventor 王占新周南强王召光
Owner 宜兴市星光宝亿化工有限公司