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Composite nano slurry-base fuel stabilizer, preparation and application

A technology of stabilizer and nano-slurry, which is applied in the field of composite nano-slurry-based fuel stabilizer and its preparation and application, and can solve the problems of failing to fundamentally improve the stability of water-coal/coke slurry, prone to degradation, and poor long-term stabilization effect, etc. problems, to achieve the effects of excellent timeliness, stable properties, and increased viscosity

Inactive Publication Date: 2007-10-24
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the above technical solutions rely on the selection of thickeners to improve the viscosity of the water-coal / coke slurry dispersion medium or improve the particle size distribution of the coal-water slurry and water-coke slurry particles, some achievements have been made in improving the stability of the water-coal / coke slurry. progress, but because the selected stabilizers are often organic polysaccharide raw materials, there are problems such as easy degradation, and the long-term stabilization effect is poor. In addition, the interaction between particles in the coal-water slurry and water-coke slurry system cannot be improved microscopically. and the electrical properties of the particle surface, thus failing to fundamentally improve the stability of the water-coal / coke slurry
Especially the patent about the stabilizer of oil-coke slurry and oil-water-coal / coke slurry has not been reported

Method used

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  • Composite nano slurry-base fuel stabilizer, preparation and application
  • Composite nano slurry-base fuel stabilizer, preparation and application
  • Composite nano slurry-base fuel stabilizer, preparation and application

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Example 1: The stabilizing effect of composite nano-slurry-based fuel stabilizer on Xinglongzhuang coal-water slurry.

[0017] The composite nano slurry-based fuel stabilizer is prepared by combining fibrous attapulgite with an aspect ratio of 50 to 120 and spherical diatomite at a mass ratio of 50:50, and the particle size is 10-40 nanometers. Take this kind of stabilizer to prepare Xinglongzhuang coal-water slurry as an example: use XMB-Φ240×330 ball mill, add stabilizer, Xinglongzhuang coal, water and dispersant to the ball mill for grinding, and their addition amounts are respectively 2.00g, 1998g, 931g, 10.00g, after grinding for 60 minutes, high stability coal water slurry was obtained. The composite nano-slurry-based fuel stabilizer prepared by two kinds of inorganic nanoparticles according to the percentage ratio of 10:90, 30:70, 70:30, 90:10, with the same amount of stabilizer added, without changing the output of pulp, repeat the above test , adjust the addit...

Embodiment 2

[0019] Example 2: The stabilization effect of the composite nano-slurry-based fuel stabilizer on the petroleum coke water coke slurry of Qilu Petrochemical.

[0020] The composite nano-slurry-based fuel stabilizer is prepared by combining fibrous wollastonite with an aspect ratio of 30 to 100 and spherical diatomite at a mass ratio of 60:40, and the particle diameter is 60-100 nanometers. Take this kind of stabilizer to prepare Xinglongzhuang coal-water slurry as an example: use XMB-Φ240×330 ball mill, add stabilizer, Qilu Petrochemical petroleum coke, water and dispersant to the ball mill for grinding, and their addition amounts are respectively Be 8.00g, 1992g, 807g, 10.00g, after milling for 75 minutes, high stability water coke slurry was obtained. The composite nano-slurry-based fuel stabilizer prepared by two kinds of inorganic nanoparticles according to the percentage ratio of 20:80, 40:60, 50:50, 80:20, with the same amount of stabilizer added, without changing the pul...

Embodiment 3

[0022] Example 3: The stabilizing effect of the composite nano slurry-based fuel stabilizer on Datong kerosene coal slurry.

[0023] The fiber-shaped attapulgite and spherical kaolin with an aspect ratio of 120 to 150 are prepared in a mass ratio of 50:50 to prepare a composite nano-slurry-based fuel stabilizer, and the particle size is 40-60 nanometers. Take the preparation of Datong kerosene coal slurry with this kind of stabilizer as an example: use XMB-Φ240×330 ball mill, add stabilizer, Datong coal, coal tar and dispersant to the ball mill for grinding, and their addition amount is 2.80g , 1911g, 1017g, 8.50g, after milling for 100 minutes, a highly stable oil-coal slurry was obtained. The composite nano-slurry-based fuel stabilizer prepared by two kinds of inorganic nanoparticles according to the percentage ratio of 10:90, 30:70, 70:30, 90:10, with the same amount of stabilizer added, without changing the output of pulp, repeat the above test , adjust the addition rate ...

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Abstract

The invention discloses a composite nanometer slurry-based fuel stabilizer, which is compounded by fiber shaped nanometer particle and ball-shaped nanometer particle with weight percentage at 10:90-90 :10, wherein the grain size of the particle is 10-100nm; the rate of length and radius of fiber shaped nanometer particle is 50-200. The invention possesses specific surface, which improves the stability of water coal / coke slurry.

Description

1. Technical field [0001] The invention relates to a pulp-based fuel stabilizer, in particular to a composite nano-pulp-based fuel stabilizer and its preparation and application. 2. Background technology [0002] Slurry-based fuel is a kind of chemical raw material or oil-substituting fuel in a two-phase or multi-phase dispersion system applied in the form of slurry. The slurry fuel referred to in the present invention includes coal-water slurry, water-coke slurry, oil-coal slurry, oil-coke slurry, oil-water-coke slurry, and oil-water coal slurry. Coal water slurry and water coke slurry refer to the two-phase dispersion system prepared by dispersing coal or petroleum coke and pitch coke particles with a certain particle size distribution in water; oil coal slurry and oil coke slurry refer to coal or petroleum coke with a certain particle size distribution Two-phase dispersion system made by dispersing coke and pitch coke particles in oil; oil-water coke slurry and oil-water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
Inventor 胡柏星刘靖何其慧蔡军潘毅沈健
Owner NANJING UNIV
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