Anionic-nonionic complex gasified coal water slurry additive

An anionic and non-ionic technology, applied in the gasification of granular/powdered fuels, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of limited universality of coal-water slurry additives

Inactive Publication Date: 2011-04-27
水煤浆气化及煤化工国家工程研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The universality of additives in coal water slurry is limited, and it is impossible for several additives to be universally applicable to all coal types

Method used

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  • Anionic-nonionic complex gasified coal water slurry additive
  • Anionic-nonionic complex gasified coal water slurry additive
  • Anionic-nonionic complex gasified coal water slurry additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Coal sample source: Shaanxi Shenmu Coal

[0062] The coal quality analysis is as follows:

[0063]

[0064] (1) Preparation of solid powder additives: Weigh anionic dispersant sodium lignosulfonate, anionic dispersant naphthalenesulfonic acid formaldehyde condensate, nonionic dispersant Agent ethylene oxide and propylene oxide block copolymer, sodium carbonate, sodium hydroxide, mixed evenly;

[0065] (2) Preparation of coal powder: crush the Shenmu coal to a certain particle size (≤3mm), and then dry crush it with a high-speed universal crusher. Control the crushing time and directly crush to produce coal powder with a suitable particle size distribution. The particle size distribution of coal powder is:

[0066] ≥40 mesh 2.8%

[0067] 40 mesh to 80 mesh 15.6%

[0068] 80 mesh to 120 mesh 24.8%

[0069] 120 mesh to 200 mesh 12.6%

[0070] 200 mesh to 325 mesh 22.2%

[0071] ≤325 mesh 22.0%

[0072] ...

Embodiment 2

[0076] Coal sample source: Yankuang Beisu Coal

[0077] The coal quality analysis is as follows:

[0078]

[0079] (1) Preparation of solid powder additives: Weigh anionic dispersant sodium lignosulfonate, anionic naphthalenesulfonic acid formaldehyde condensate, nonionic dispersant ring Ethylene oxide and propylene oxide block copolymer, potassium carbonate, potassium hydroxide, mixed evenly;

[0080] (2) Preparation of coal powder: crush Beisu coal to a certain particle size (≤3mm), and then dry crush it with a high-speed universal crusher. Control the crushing time and directly crush to produce coal powder with a suitable particle size distribution. The particle size distribution of coal powder is:

[0081] ≥40 mesh 2.1%

[0082] 40 mesh to 80 mesh 12.9%

[0083] 80 mesh to 120 mesh 17.2%

[0084] 120 mesh to 200 mesh 9.7%

[0085] 200 mesh to 325 mesh 20.3%

[0086] ≤325 mesh 37.8%

[0087] (3) Preparation o...

Embodiment 3

[0091] Coal sample source: Guizhou Kaiyang Coal

[0092] The coal quality analysis is as follows:

[0093]

[0094] (1) Prepare solid powder additives: weigh anionic dispersant calcium lignosulfonate, anionic dispersant naphthalenesulfonic acid formaldehyde condensate, nonionic dispersant Agent ethylene oxide and propylene oxide block copolymer, ammonium carbonate, sodium hydroxide, mixed evenly;

[0095] (2) Preparation of coal powder: crush Kaiyang coal to a certain particle size (≤3mm), and then dry crush it with a high-speed universal crusher. Control the crushing time and directly crush to produce coal powder with a suitable particle size distribution. The particle size distribution of coal powder is:

[0096] ≥40 mesh 3.9%

[0097] 40 mesh to 80 mesh 12.4%

[0098] 80 mesh ~ 120 mesh 10.0%

[0099] 120 mesh to 200 mesh 16.9%

[0100] 200 mesh to 325 mesh 37.6%

[0101] ≤325 mesh 19.2%

[0102] (3) Pre...

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Abstract

The invention provides an anionic-nonionic complex gasified coal water slurry additive. The additive is prepared by mixing the following components in part by mass uniformly: 21 to 41 parts of anionic dispersant lignosulfonate, 20.5 to 47.4 parts of anionic dispersant naphthalene sulfonate formaldehyde condensate, 5.3 to 10.3 parts of nonionic dispersant oxirane and poxypropane segmented copolymer, 21 to 25.6 parts of hole plugging agent, and 2.6 to 5.3 parts of acid-base regulator, wherein a composition of the anionic dispersant lignosulfonate, the naphthalene sulfonate formaldehyde condensate, and the nonionic dispersant oxirane and poxypropane segmented copolymer has unique synergistic property, so the synergistic effect of learn strong points to offset weakness can be played.

Description

technical field [0001] The invention relates to the field of coal-water slurry, in particular to an anion-nonion composite coal gasification water-coal slurry additive. Background technique [0002] Coal water slurry is one of the clean coal technologies that emerged in the 1980s. It is a slurry prepared from coal with a certain particle size distribution, water and a small amount of chemical additives. It has the same fluidity as petroleum, and can be pumped, atomized and burned. It can replace petroleum as fuel for boilers, and can also be used as raw material for coal gasification to produce syngas and process downstream chemical products. [0003] In the past ten years, coal-water slurry oil substitution and coal-water slurry gasification have been widely used in my country, especially coal-water slurry as a raw material for coal gasification has developed rapidly. There are nearly ten coal-water slurry gasification operating plants, and the annual pulping The volume is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/24C10L1/198C10L1/12C10L1/32C10J3/46
Inventor 金刚路文学郭宝贵张鸿林张俊先李磊刘宗峰王军刘珂傅进军王辉闫风琴荆波李彩艳孙西红宋甜甜胡宇峰尹洪清
Owner 水煤浆气化及煤化工国家工程研究中心
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