Coal-water slurry mixed with gasified coal and petrochemical waste and its pulping process

A waste, coal-water slurry technology, applied in the petroleum industry, fuels, liquid carbon-containing fuels, etc., can solve the problems of unreported industrial application of high-concentration coal-water slurry, abnormal shutdown, coal slurry precipitation, etc. The effect of reducing cost, reducing pulping cost, and high concentration of coal slurry

Active Publication Date: 2019-02-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The terpolymer polymer compound type agent product is suitable for the production of high-concentration coal-water slurry, which has remarkable characteristics, but there is no actual industrial application report for the production of high-concentration coal-water slurry under the condition of waste mixing
Compared with waste-mixed pulping technology, pulping with this type of agent is easy to cause coal slurry precipitation and poor fluidity, resulting in abnormal stoppage of plant operation

Method used

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  • Coal-water slurry mixed with gasified coal and petrochemical waste and its pulping process
  • Coal-water slurry mixed with gasified coal and petrochemical waste and its pulping process
  • Coal-water slurry mixed with gasified coal and petrochemical waste and its pulping process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Get the water that is 8.6% of naphthalene, 14% of sulfuric acid, 37% of liquid caustic, 11% of formaldehyde, 5% of styrene, 3% of octylphenol and 21.4% of water by mass percentage, 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.

[0031] Components in mass percent: 60% of methylene naphthalene sulfonate-styrene sulfonate-octyl phenoxide polymer, 4% of sodium carbonate, 5% of carboxymethyl cellulose, 1% Dioctyl sulfosuccinate sodium penetrant an...

Embodiment 2

[0033] Get the water that is 8.6% of naphthalene, 14% of sulfuric acid, 37% of liquid caustic, 11% of formaldehyde, 5% of styrene, 3% of octylphenol and 21.4% of water by mass percentage, 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.

[0034] Components in mass percent: 56% of methylene naphthalene sulfonate-styrene sulfonate-octylphenate polymer, 6% of sodium carbonate, 8% of carboxymethyl cellulose, 5% Dioctyl sulfosuccinate sodium penetrant and 2...

Embodiment 3

[0036] Get the water that is 8.6% of naphthalene, 14% of sulfuric acid, 37% of liquid caustic, 11% of formaldehyde, 5% of styrene, 3% of octylphenol and 21.4% of water by mass percentage, 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.

[0037] Components in mass percent: 62% of methylene naphthalene sulfonate-styrene sulfonate-octylphenate polymer, 5% of sodium carbonate, 8% of carboxymethyl cellulose, 5% Dioctyl sulfosuccinate sodium penetrant and 2...

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Abstract

The invention discloses coal water slurry prepared by mixing gasified coal with petrochemical wastes. The coal water slurry is prepared from the following components: coal, the petrochemical wastes, additives and water, wherein the mass of the petrochemical wastes accounts for 0-6% of the total mass of the coal water slurry but not zero, and the adding amount of the additives accounts for 0-0.15% of the total mass of the dry coal but not zero. The invention also discloses a slurrying technology of the coal water slurry. The coal water slurry provided by the invention is good in fluidity and stability.

Description

technical field [0001] The invention relates to a coal-water slurry and a pulping process thereof, in particular to a coal-water slurry in which gasified coal is mixed with petrochemical waste and a pulping process thereof. Background technique [0002] Coal-water slurry is a coal-based liquid fuel that emerged in the 1970s. It can be used as a furnace fuel or a raw material for syngas, and has the advantages of stable combustion and low pollution emissions. Coal water slurry is a mixture of coal, water and chemical additives according to certain requirements. It has good fluidity and stability, is easy to store, and can be atomized and burned. It is a relatively high combustion efficiency and low pollution. Cheap and clean fuel can replace heavy oil to alleviate the energy security problem of oil shortage. [0003] At present, the commonly used coal water slurry additives at home and abroad are anionic dispersants, mainly naphthalene sulfonate, lignosulfonate, polyether ty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/32C10L1/24C08G16/04
CPCC08G16/0237C08G16/04C10L1/2462C10L1/326C10L2290/08C10L2290/24C10L2290/28
Inventor 王占新周忠立杨庆伟徐宁静罗志荣周南强任金成王召光赖作通谢志翔李超志
Owner CHINA PETROLEUM & CHEM CORP
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