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Naphthalene coal water slurry additive and preparation method thereof

A technology for additive preparation and coal water slurry, which is applied in the field of coal water slurry additives, can solve problems such as poor stability of coal slurry, and achieve the effects of long stable period, low price and increased effect

Active Publication Date: 2015-07-15
SHENZHEN GCD PETROLEUM ADDITIVE CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the dispersing effect of naphthalene-based additives is relatively good, the stability of the prepared coal slurry is poor, and it generally needs to be used in combination with other additives

Method used

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  • Naphthalene coal water slurry additive and preparation method thereof
  • Naphthalene coal water slurry additive and preparation method thereof
  • Naphthalene coal water slurry additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Put 100 grams of C9 / C10 naphthalene-rich fraction in a 500 ml four-neck flask, raise the temperature to 155°C, add 80 grams of 98% concentrated sulfuric acid dropwise, stir at 160-165°C for 3 hours, cool down to 110°C, add 40 mL of water, stirred at constant temperature for 1 hour to obtain naphthalenesulfonic acid solution. At the same time, 10 grams of polyethylene glycol (molecular weight 1000), 1.9 grams of p-toluenesulfonyl chloride and 15 milliliters of heavy aromatics were put into another flask, 0.8 grams of pyridine was added dropwise, stirred at room temperature for 6 hours, then 5 grams of aniline was added, and the mixture was heated at 110 ° C. Stir for 4 hours. Add this reaction solution to the above-mentioned naphthalenesulfonic acid solution, adjust the acidity to 30% with 98% concentrated sulfuric acid, add 50 grams of 38% formaldehyde solution dropwise at 90°C, then raise the temperature to 110°C, stir at constant temperature for 3 hours, and cool down...

Embodiment 2

[0029] Put 100 grams of C9 / C10 naphthalene-rich fraction in a 500 ml four-necked flask, raise the temperature to 155°C, add 90 grams of 98% concentrated sulfuric acid dropwise, stir at 160-165°C for 2 hours, cool down to 110°C, add 40 mL of water, stirred at constant temperature for 1 hour to obtain naphthalenesulfonic acid solution. At the same time, 20 grams of polyethylene glycol (molecular weight 1000), 3.8 grams of p-toluenesulfonyl chloride and 30 milliliters of heavy aromatics were put into another flask, and 1.6 grams of pyridine was added dropwise, stirred at room temperature for 2 hours, then 5 grams of aniline was added, and the °C for 4 hours. Add this reaction solution into the above-mentioned naphthalenesulfonic acid solution, adjust the acidity to 30% with 98% concentrated sulfuric acid, add 70 grams of 38% formaldehyde solution dropwise at 90°C, then raise the temperature to 110°C, stir at constant temperature for 2 hours, and cool down to room temperature , a...

Embodiment 3

[0031] Put 100 grams of C9 / C10 naphthalene-rich fraction in a 500 ml four-neck flask, raise the temperature to 155°C, add 100 grams of 98% concentrated sulfuric acid dropwise, stir at 160-165°C for 4 hours, cool down to 110°C, add 40 mL of water, stirred at constant temperature for 1 hour to obtain naphthalenesulfonic acid solution. At the same time, 10 grams of polyethylene glycol (molecular weight 1000), 1.9 grams of p-toluenesulfonyl chloride and 15 milliliters of heavy aromatics were put into another flask, 0.8 grams of pyridine was added dropwise, stirred at room temperature for 4 hours, and then 10 grams of aniline was added. The reaction was carried out for 4 hours. Add this reaction solution to the above-mentioned naphthalenesulfonic acid solution, adjust the acidity to 30% with 98% concentrated sulfuric acid, add 60 grams of 38% formaldehyde solution dropwise at 90°C, then raise the temperature to 110°C, stir at constant temperature for 3 hours, and cool down to room ...

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Abstract

The invention discloses a naphthalene coal water slurry additive and a preparation method thereof. In order to fully utilize the cracking byproducts namely C9 / C10 fractions, the invention discloses a novel multifunctional naphthalene coal water slurry additive prepared from the C9 / C10 naphthalene-enriched fractions of ethylene cracking, and the additive is prepared through the following steps: sulfonating and hydrolyzing the C9 / C10 naphthalene-enriched fractions, and then mixing the reaction products with aniline polyether condensate and formaldehyde to carry out polycondensation and neutralization reactions. The additive integrates the dispersibility and stability, and has the advantages of few mixing amount, high pulping concentration, strong adaptability to coal species, and high stability. The raw materials are sufficient, the product performance is good, the problem that the comprehensive utilization of C9 / C10 fractions is difficult is solved, and thus the additive and preparation method have a wide market prospect.

Description

technical field [0001] The invention relates to a coal-water slurry additive, specifically a novel multifunctional naphthalene-based coal-water slurry additive. Background technique [0002] With the development of my country's petrochemical industry, especially the gradual increase in ethylene production capacity, the output of by-product cracking C9 and C10 is also increasing. For a long time, except for a small amount of petroleum resin and solvent oil, most of them have been used as fuel and have not been effectively utilized. Therefore, how to make better use of this part of resources to develop downstream products is to enhance the deep processing capacity of the ethylene industry and promote product structure adjustment. , The key to enhancing the competitiveness and overall efficiency of the entire petrochemical industry. [0003] my country is a country rich in coal and low in oil. Coal resources account for more than 65% of my country's energy consumption. However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/24C10L1/30C10L1/32
Inventor 熊靓严斌张捷
Owner SHENZHEN GCD PETROLEUM ADDITIVE CO
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