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Complete set of equipment and method for separating high-temperature coal tar components via low-temperature rapid extraction method

A high-temperature coal tar and coal tar technology, which is applied in the direction of tar processing through selective solvent extraction and tar processing through distillation, can solve the problems of difficult processing, separation and treatment of coal tar pitch, and achieve easy automatic operation, Low equipment cost and obvious effect

Active Publication Date: 2015-05-20
CHINA UNIV OF MINING & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The primary QI components rich in raw coal tar, such as coal powder, coke powder, and inorganic minerals, are difficult to separate and process, and the obtained coal tar pitch is difficult to be directly reprocessed or used as an important carbon material raw material. use

Method used

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  • Complete set of equipment and method for separating high-temperature coal tar components via low-temperature rapid extraction method
  • Complete set of equipment and method for separating high-temperature coal tar components via low-temperature rapid extraction method
  • Complete set of equipment and method for separating high-temperature coal tar components via low-temperature rapid extraction method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Separation of high-temperature coal tar components includes a complete set of equipment and methods; the complete set of equipment includes two kettles and four tanks, which are respectively composed of a coal tar extraction kettle, a light oil solution buffer tank, a filter tank, and a refined light oil Solution buffer tanks, stills and solvent storage tanks;

[0052] The solvent inlet 1-4 on the upper right side of the coal tar extraction kettle 1-1 is connected to the pipeline of the solvent outlet 7-5 on the lower right part of the solvent tank 7-3; the lower right side of the coal tar extraction kettle 1-1 The light oil solution outlet 1-9 is connected to the pipeline of the feed inlet 2-2 on the left top of the light oil solution buffer tank 2-1; the outlet 2-5 on the right bottom of the light oil solution buffer tank 2-1 is connected to The pipeline of the light oil solution inlet 3-1 on the top cover of the filter tank 3-5 is connected; the ref...

Embodiment 2

[0080] Embodiment 2: the equipment scheme is the same as implementation 1. The specific method process is as follows:

[0081] 1. The process of extracting coal tar and obtaining heavy pitch

[0082] Described concrete method process is as follows:

[0083] Step 1: According to the volume ratio of 1:4, inject the high-temperature coal tar raw material and the extraction solvent into the coal tar from the coal tar feed port 1-4 and the solvent feed port 1-6 on the top cover of the coal tar extraction kettle 1-1 respectively In the extraction kettle 1-1, and keep the total volume of the material to the 1 / 2 height range of the coal tar extraction kettle 1-1.

[0084] Step 2: Open the valves of steam heating coil outlet 1-10 and steam heating coil inlet 1-11, control and maintain the temperature in the kettle at 60 o C±5 o In the temperature range of C, open the magnetic stirring paddle 5 and continue to stir for 4 hours afterwards, and open the valves of the first tail gas ...

Embodiment 3

[0100] Embodiment 3: the equipment scheme is the same as implementation 1. The specific method process is as follows:

[0101] 1. The process of extracting coal tar and obtaining heavy pitch

[0102] Step 1: According to the volume ratio of 1:6, inject the high-temperature coal tar raw material and the extraction solvent into the coal tar from the coal tar feed port 1-4 and the solvent feed port 1-6 on the upper cover of the coal tar extraction kettle 1-1 respectively Extraction kettle 1-1, and keep the total volume of materials to 2 / 3 of the height range of coal tar extraction kettle 1-1.

[0103] Step 2: Open the valves of steam heating coil outlet 1-10 and steam heating coil inlet 1-11, control and maintain the temperature in the kettle at 60 o C±5 o In the temperature range of C, open the magnetic stirring paddle 5 and continue to stir for 1 hour afterwards, and open the valves of the first tail gas release port 1-8 and the light oil solution discharge port 1-9 after ...

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Abstract

The invention relates to a complete set of equipment and a method for separating high-temperature coal tar components via a low-temperature rapid extraction method, and belongs to the complete set of separation equipment and the method for extracting the high-temperature coal tar. The complete set of equipment comprises two kettles and four jars: a coal tar extraction kettle, a light oil solution buffering jar, a filtering jar, refined light oil solution buffering jar, a distillation kettle and a solvent storing jar. The method comprises the following steps: extracting the coal tar to obtain heavy asphalt; filtering a refined light oil solution; and distilling the refined light oil to obtain the refined light oil. The equipment and the method have the advantages that the separation of light and heavy components in the coal tar is realized rapidly; the operation condition is moderate; the separation process is advanced; the separation efficiency is high; and the separation depth and the treatment quantity of the coal tar can be mastered flexibly and controlled selectively by changing an extraction agent, the adding amount of the extraction agent as well as the parameters of the extraction operation. The equipment and the method provided by the invention are simple and convenient to operate, obvious in energy conservation and consumption reduction, high in solvent recovery rate and easy in automatic operation, realize low-carbon clean production and are low in investment cost as well as nearly free of discharging waste residue, waste gas and waste water.

Description

technical field [0001] The invention relates to a complete set of separation equipment and method for extracting high-temperature coal tar, in particular to a complete set of equipment and method for separating high-temperature coal tar components by a low-temperature and rapid extraction method. Background technique [0002] High-temperature coal tar is a black or dark brown viscous liquid with pungent odor, which is a by-product of coking. At present, one-tower or two-tower tar distillation processes are used at home and abroad to process high-temperature coal tar. This conventional distillation method can be divided into intermittent tar distillation and continuous tar distillation, and can be divided into normal pressure according to whether there is vacuum or not. Distillation and vacuum distillation. [0003] During conventional high-temperature coal tar processing, it is necessary to provide > 450 o The heating temperature of C, coal tar processing equipment has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10C1/18C10C1/04
Inventor 魏贤勇江卫宗志敏王明南殷涛和德涛张波楚可嘉李万勇杨重阳徐宾李保民赵炜朱亭亭丁俊杨其权王青韩涛袁帅王勇曹敬佩樊星赵云鹏梁静任海宁彭友林沈红娜刘显灵周健赵伟李海平靖玲
Owner CHINA UNIV OF MINING & TECH
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