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Method for separating liquefiable and non-liquefiable components in inertinite microcomponents of coal

A separation method and micro-component technology, which are applied in the preparation of liquid hydrocarbon mixtures, grain processing, petroleum industry, etc., can solve problems such as restricting the development of coal clean technology, and achieve the effect of broad application prospects and market potential.

Active Publication Date: 2020-10-02
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although my country is rich in coal resources, there are abundant coal reserves with high inertinite content, which seriously restricts the development of clean coal technology

Method used

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  • Method for separating liquefiable and non-liquefiable components in inertinite microcomponents of coal
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  • Method for separating liquefiable and non-liquefiable components in inertinite microcomponents of coal

Examples

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Embodiment 1

[0024] A method for separating liquefiable and non-liquefiable components in the inertinite microcomponents of coal, specifically comprising the following steps:

[0025] (1) Hand-select the Daliuta coal sample to obtain a coal sample with an inertinite content above 80%;

[0026] (2) Use a jaw crusher to crush the coal sample to 0.5-3 mm, and sieve and collect inertinite-rich particles with smaller particle sizes;

[0027] (3) Grinding the inertinite enrichment to make coal powder and carrying out chemical deashing treatment, then rod milling to obtain a coal powder sample;

[0028] (4) The pulverized coal samples were subjected to centrifugal floating-sinking experiments, and the centrifugal floating-sinking experiments were carried out from low to high proportion specific gravity liquids, and samples of a series of densities (1.35g / cm2) were obtained and collected. 3 , 1.37g / cm 3 , 1.39g / cm 3 , 1.41g / cm 3 , 1.43g / cm 3 , 1.45g / cm 3 , 1.47g / cm 3 , 1.49g / cm 3 , 1.50g / c...

Embodiment 2

[0036] A method for separating liquefiable and non-liquefiable components in the inertinite microcomponents of coal, specifically comprising the following steps:

[0037] (1) manually select the coal sample of the supplementary tower to obtain a coal sample with an inertinite content of more than 80%;

[0038] (2) Use a jaw crusher to crush the coal sample to 0.5-3 mm, and sieve and collect inertinite-rich particles with smaller particle sizes;

[0039] (3) Grinding the inertinite enrichment to make coal powder and carrying out chemical deashing treatment, then rod milling to obtain a coal powder sample;

[0040] (4) Carry out centrifugal floating-sinking experiment on the pulverized coal sample, and carry out centrifugal floating-sinking experiment from low to high specific gravity liquid, obtain and collect the sample of a series of sample densities (1.35g / cm 3 , 1.37g / cm 3 , 1.39g / cm 3 , 1.41g / cm 3 , 1.43g / cm 3 , 1.45g / cm 3 , 1.47g / cm 3 , 1.49g / cm 3 , 1.50g / cm 3 )....

Embodiment 3

[0048] A method for separating liquefiable and non-liquefiable components in the inertinite microcomponents of coal, specifically comprising the following steps:

[0049] (1) Hand-select the Hulunbeier coal sample to obtain a coal sample with an inertinite content above 80%;

[0050] (2) Use a jaw crusher to crush the coal sample to 0.5-3 mm, and sieve and collect inertinite-rich particles with smaller particle sizes;

[0051] (3) Grinding the inertinite enrichment to make coal powder and carrying out chemical deashing treatment, then rod milling to obtain a coal powder sample;

[0052] (4) Carry out the centrifugal floating-sinking experiment on the pulverized coal sample, and carry out the centrifugal floating-sinking experiment on the proportioned liquid from low to high to obtain the distribution data of each density range of the sample and collect samples of each density range. Specific gravity liquid density range 1.35~1.50g / cm 3 And the density interval is set to 0.02...

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Abstract

The invention discloses a method for separating liquefied and non-liquefied components from inertinite microscopic components of coal. The method comprises the following specific steps: firstly, coalsample selection is conducted, specifically, the ash-black coal with the dark color is selected through naked eyes, and the inertinite content of the coal is relatively rich; and then inertinite is subjected to a floating experiment, specifically, coal samples with the density being 1.35-1.50 g / cm<3> are collected to be subjected to a liquefaction experiment, and through liquefaction data, it is found that liquefied and non-liquefied parts of the inertinite can be defined. According to method, separation of the inertinite microscopic components of the coal can be promoted, the content of the liquefied parts in the inertinite microscopic components of the coal is increased, and practical industrial and application value is achieved.

Description

technical field [0001] The invention specifically relates to a method for separating liquefiable and non-liquefiable microcomponents of inertinite in coal, and belongs to the technical field of separation of coal and microcomponents thereof. Background technique [0002] my country's coal resource reserves rank second in the world, and coal is also China's main energy source, which will not change for a long time in the future. Therefore, it is very important to grasp the properties of coal and fully study the composition and structure of coal. Composition directly determines the properties of coal, and all coal transformations are bound to be closely related to changes in coal composition and structure. Coal is a complex mixture of organic microcomponents with different properties and a small amount of inorganic minerals. The organic microcomponents can be divided into vitrinite, inertinite and exinite according to the optical properties of coal. The inertinite group can be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00B02C23/08
CPCB02C23/08C10G1/00
Inventor 蔺华林王叶函叶伟林连俊韩生
Owner SHANGHAI INST OF TECH