Production method of coal-series fuel oil

A production method and fuel oil technology, applied in the field of coal chemical industry, can solve the problems of low energy utilization rate, uneven composition, complex process, etc., achieve good environmental protection effect, reduce the content of impurities such as nitrogen and sulfur, and simple process Effect

Inactive Publication Date: 2017-02-22
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is long and the process is relatively complicated. The mixing of the oils of the two media is likely to cause uneven components and certain fluctuations in quality, and the anthracene oil needs to be stored in some storage tanks, and the temperature is repeatedly lowered and heated during the processing process. not tall

Method used

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  • Production method of coal-series fuel oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A specific embodiment of the production method of coal-based fuel oil, the specific steps are as follows:

[0039] 1) filling the dehydration tower 3 through the tar preheater 1 through the pre-dehydration tower 2, and filling the dehydration tower 3 to a certain liquid level;

[0040]2) When the liquid level of the dehydration tower 3 is close to 50%, start the circulation pump 4 at the bottom of the dehydration tower to start the circulation of the dehydration tower;

[0041] 3) Start the heat transfer oil system, start heating the heat transfer oil, and the heat transfer oil starts to feed the tar preheater 1 and the dehydration tower reboiler 5 (heat the pre-dehydration tower through the tar preheater, and dehydrate the dehydration tower through the dehydration tower reboiler) Tower 3 heating) heat supply;

[0042] 4) Start the extraction pump 6 at the bottom of the dehydration tower to supply the tar raw material to the distillation tower 8; start the extraction p...

Embodiment 2

[0050] A specific embodiment of the production method of coal-based fuel oil, the specific steps are as follows:

[0051] 1) filling the dehydration tower 3 through the tar preheater 1 through the pre-dehydration tower 2, and filling the dehydration tower 3 to a certain liquid level;

[0052] 2) When the liquid level of the dehydration tower 3 is close to 50%, start the circulation pump 4 at the bottom of the dehydration tower to start the circulation of the dehydration tower;

[0053] 3) Start the heat transfer oil system, start heating the heat transfer oil, and the heat transfer oil starts to feed the tar preheater 1 and the dehydration tower reboiler 5 (heat the pre-dehydration tower through the tar preheater, and dehydrate the dehydration tower through the dehydration tower reboiler) Tower 3 heating) heat supply;

[0054] 4) Start the extraction pump 6 at the bottom of the dehydration tower to supply the tar raw material to the distillation tower 8; start the extraction ...

Embodiment 3

[0062] A specific embodiment of the production method of coal-based fuel oil, the specific steps are as follows:

[0063] 1) filling the dehydration tower 3 through the tar preheater 1 through the pre-dehydration tower 2, and filling the dehydration tower 3 to a certain liquid level;

[0064] 2) When the liquid level of the dehydration tower 3 is close to 50%, start the circulation pump 4 at the bottom of the dehydration tower to start the circulation of the dehydration tower;

[0065] 3) Start the heat transfer oil system, start heating the heat transfer oil, and the heat transfer oil starts to feed the tar preheater 1 and the dehydration tower reboiler 5 (heat the pre-dehydration tower through the tar preheater, and dehydrate the dehydration tower through the dehydration tower reboiler) Tower 3 heating) heat supply;

[0066] 4) Start the extraction pump 6 at the bottom of the dehydration tower to supply the tar raw material to the distillation tower 8; start the extraction ...

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Abstract

The invention discloses a production method of coal-series fuel oil and relates to the field of the coal chemical industry. The production method comprises steps as follows: 1) high-temperature coal tar is selected as a raw material, and a 5%-10% sodium carbonate solution is added; 2) a liquid obtained in step 1) is heated for dewatering and desalting, light oil, phenol oil and naphthalene oil components with lower boiling points and low calorific values are distilled, refined and separated, and the rest components are the coal-series fuel oil serving as industrial fuel. The production method adopts the simple process and is energy-saving and environment-friendly, coal chemical resources are better utilized, light oil, phenol oil, naphthalene oil and other components with high added values are extracted from high-temperature coal tar, the rest components are all used as the coal-series fuel oil product, and the product quality is uniform and stable.

Description

technical field [0001] The invention relates to a method for producing coal-based fuel oil from high-temperature coal tar, which belongs to the field of coal chemical industry. Background technique [0002] With the continuous development of the chemical industry and machinery industry, the demand for fuel oil (referring to furnace and kiln fuel) is increasing day by day. As we all know, at present, heavy oil, residual oil, oil slurry, and re-refined oil are mainly used as fuel oil in the market. Due to the high content of sulfur, nitrogen and other impurities and volatile components, they are easy to be polluted during transportation and use. environment; at the same time, due to the continuous reduction of oil resources, this kind of fuel oil is increasingly unable to meet market demand. Therefore, seeking alternative fuels for fuel oil has always been a research direction of people. [0003] my country is a country rich in coal resources, and the use of coal tar by-prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/02
CPCC10G53/02C10G2300/202
Inventor 吴术彬刘小敏雷兴红梁治学张贺娟徐兵肖述池吕欣泽
Owner 武汉钢铁有限公司
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