Coal water slurry additive

An additive and coal-water slurry technology, which is applied in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of large dosage, limited application, limited universality, etc., and achieve good slurrying properties, good adaptability, The effect of using less

Active Publication Date: 2012-01-25
SHANGHAI HUAYI ENERGY CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the research and application of coal-water slurry additives have attracted people's attention, and many achievements have been made, such as a compound additive of sodium p-styrenesulfonate and nonylphenol polyoxyethyl ether disclosed in patent CN101007972A; disclosed in CN1693429A A kind of surfactant mixed with multiple sulfonates; a kind of alkali lignin / sulfonated acetone / formaldehyde condensation polymer disclosed by CN101225336A; acrylic acid series additives etc. disclosed by CN101368117A; Limited performance, or large amount leads to high cost, and its application is limited

Method used

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  • Coal water slurry additive
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preparation example Construction

[0023] The preparation method of described additive is as follows:

[0024] Raw materials: β-naphthalenesulfonic acid formaldehyde polycondensate prepared according to traditional methods

[0025] Sodium lignosulfonate, penetrant sodium alkylsulfonate, and emulsifier are all purchased from the market

[0026] At 70°C, stir and dissolve β-naphthalenesulfonic acid formaldehyde polycondensate and sodium lignosulfonate in water, then add penetrant and emulsifier, and stir evenly.

Embodiment （1）

[0028] The weight ratio of β-naphthalenesulfonic acid formaldehyde polycondensate, sodium lignosulfonate, penetrant and emulsifier is 1:1.0-1.5:0.04-0.05:0.02-0.03. Compounded into additives according to the preparation method.

Embodiment （2）

[0030] The weight ratio of β-naphthalenesulfonic acid formaldehyde polycondensate, sodium lignosulfonate, penetrant and emulsifier is 1:0.5-0.9:0.01-0.02:0.02-0.03. Compounded into additives according to the preparation method.

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Abstract

The invention relates to a coal water slurry additive. Two types of dispersant, penetrant and emulsifier are compounded according to a certain proportion, and thereby the additive with high universality and good slurriability is produced. The additive can be applied in coal water slurry produced with a variety of coals for gasification, and under 0.5 to 2.5 per thousand of addition, coal water slurry reaches or even excels the GB/T18855-2002 standard.

Description

technical field [0001] The invention relates to a coal-water slurry additive, in particular to a coal-water slurry additive with wide adaptability and good slurry-forming property. Background technique [0002] my country's mineral energy is dominated by coal. By 2010, coal will account for about 60% of the primary energy consumption structure. Therefore, vigorously developing clean coal technology and utilizing my country's coal resources efficiently and cleanly will help promote the coordinated development of energy and the environment and satisfy the needs of the people. The need for rapid and stable economic development has extremely important strategic significance. [0003] Coal water slurry is a new, efficient and clean coal-based fuel. It is a mixture made of 66%~69% coal with different distributions, about 30% water and about 1% chemical additives. It is also called liquid coal. The world's energy industry has started research on coal-water slurry since the 1970s. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32C10L1/24C10L1/26C10L1/198C10L1/188C10L10/18
Inventor 周志喆周亚明吴祖伟谭红卫汪文梅
Owner SHANGHAI HUAYI ENERGY CHEM
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