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Coal tar dehydration method

A technology of coal tar and dehydration device, which is applied in the field of coal tar dehydration, can solve problems such as substandard water content of coal tar, and achieve the effect of solving dehydration difficulties and rapid removal

Active Publication Date: 2020-12-04
榆林市榆神工业区华航能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides a tar dehydration method to solve the problem in the prior art that the water content of coal tar is not up to standard due to insufficient dehydration of coal tar

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0036] A coal tar dehydration method, such as figure 1 As shown, the method includes the following steps:

[0037] S1, compress and dry the air;

[0038] S2, fully mixing the compressed dry air in step S1 with coal tar;

[0039] S3, fully mixing hot steam with the coal tar in step S2;

[0040] S4, heating the gas-liquid mixture in step S3;

[0041] S5. After the water in the coal tar is fully evaporated, the mixture is subjected to gas-liquid separation.

[0042] In step S1, the air is compressed and dried. In this step, it is preferred to compress it and then dry it to prevent secondary liquefaction of the steam during the process of compressing the air. The drying process is deep drying.

[0043] In steps S2 and S3, the mixing ratio of compressed dry air and hot steam is 1-3:1.

[0044] In step S4, the gas-liquid mixture is heated for 15-30 minutes. During the heating process, the heating temperature is controlled at 180°C-200°C. At the same time, the coal tar was co...

Embodiment 2

[0051] A coal tar dehydration device, such as figure 2Shown, comprise the mixer 1 that coal tar passes successively, heating device 4, dissolving gas device 6, separating device 7, between mixer 1 and heating device 4, between heating device 4 and dissolving gas device 6, and A feeding pipeline 8 is connected between the gas-dissolving device 6 and the separation device 7; in use, simultaneously, it also includes a compressed air supply device 2 connected to the mixer 1, a feeding device 3 connected to the mixer 1, and A steam supply assembly 5 connected to the heating device 4 . When in use, the material is supplied to the mixer 1 through the provided feeding device 3, and at the same time, the compressed air is added to the mixer 1 through the provided compressed air supply device 2. After fully mixing, the gas-liquid mixing The body is sent to the heating device 4, and hot steam is supplied to the heating device 4 through the steam supply assembly 5 provided, and the gas-...

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PUM

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Abstract

The embodiment of the invention discloses a coal tar dehydrating method, and relates to the technical field of coal tar deep processing. The method comprises the following steps that S1, air is compressed and dried; S2, the compressed dry air obtained in step 1 is fully mixed with coal tar; S3, hot steam is fully mixed with the coal tar obtained in step 2; S4, the gas and liquid mixture obtained in step 3 is heated; S5, after water in the coal tar is fully evaporated, the mixture is subjected to gas and liquid separation. The method is used for solving the problem that dehydrating of the coaltar in the prior art is not sufficient and accordingly the water content of the coal tar does not meet standards.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of deep processing of coal tar, in particular to a coal tar dehydration method. Background technique [0002] Coal tar is a black or dark brown viscous liquid obtained by dry distillation of coal. The composition of coal tar is very rich, and the types of hydrocarbons can reach tens of thousands, so it has become an important raw material for the coal chemical industry. [0003] Coal tar usually contains a large amount of water, which has a very adverse effect on the subsequent processing and utilization of coal tar. Therefore, the water in coal tar needs to be removed before subsequent processing. However, water and oil in coal tar form an emulsified state of water-in-oil and oil-in-water, which makes it very difficult to remove water in coal tar. [0004] Generally, the emulsified system is broken by mixing the demulsifier with the coal tar, and then the water in the coal tar i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10C1/02
CPCC10C1/02
Inventor 高德俊单涛任庆民
Owner 榆林市榆神工业区华航能源有限公司