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Processing technology for water/ash-containing tar

A processing technology and tar technology, which is applied to the processing technology field of water/ash tar, can solve the problems of waste of resources, difficult to remove, and low utilization value of tar, and achieve the effects of convenient operation, stable oil quality and simple process

Inactive Publication Date: 2013-04-03
杨东平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To sum up, it is difficult to remove the ash and moisture in this kind of water-containing and ash-containing tar by the existing technology, and it can only be used as ordinary heavy fuel oil, so that the utilization value of the tar is not high, resulting in a large waste of resources

Method used

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  • Processing technology for water/ash-containing tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] a. Stand for dehydration

[0020] Put the raw material tar containing moisture and ash powder in the storage tank 1 into the reaction kettle 2 equipped with steam heating through the delivery pump 12. The temperature of the reaction kettle is controlled at 80°C, and then polyoxypropylene polyoxyethylene glycol ether is added to cross-link type crude oil demulsifier (POI-2420) and keep stirring for 25 minutes to break the emulsified tar. The pump 12 directly sends the raw material tar to the static separation tank 4 for static dehydration. The weight ratio of the demulsifier to the raw material tar is 0.020:100, the temperature of the separation tank is 80° C., and the static separation time is 60 minutes to separate the water and the tar. layer, the water content of the tar after standing and separating is 4.0% by weight, and a heater is arranged in the storage tank 1, and the heating temperature is 80° C. to maintain the fluidity of the tar.

[0021] b. Flash dehydrat...

Embodiment 2

[0031] a. Stand for dehydration

[0032] Put the raw material tar containing water and ash powder in the storage tank 1 into the reaction kettle 2 equipped with steam heating through the delivery pump 12. The temperature of the reaction kettle is controlled at 85°C, and then polyoxypropylene polyoxyethylene glycol ether is added to cross-link type crude oil demulsifier (POI-2420) and keep stirring for 20 minutes to demulsify the emulsified tar. The raw tar after demulsification is sent to the standing separation tank 3 with heat preservation. If the raw tar is not emulsified, it will pass through The transfer pump 12 directly sends the raw material tar to the static separation tank 4 for static dehydration. The weight ratio of the demulsifier to the raw material tar is 0.020:100, the temperature of the separation tank is 80° C., and the static separation time is 80 minutes, so that the water and the tar Layering, the water content of the tar after standing and separating is 3....

Embodiment 3

[0043] a. Stand for dehydration

[0044] Put the raw material tar containing water and ash powder in the storage tank 1 into the reaction kettle 2 equipped with steam heating through the delivery pump 12. The temperature of the reaction kettle is controlled at 90°C, and then polyoxypropylene polyoxyethylene glycol ether is added to cross-link type crude oil demulsifier (POI-2420) and keep stirring for 30 minutes to demulsify the emulsified tar. The raw tar after demulsification is sent to the static separation tank 3 with heat preservation. If the raw tar is not emulsified, it will pass through The delivery pump 12 directly sends the raw material tar to the static separation tank 4 for static dehydration. The weight ratio of the demulsifier to the raw material tar is 0.015:100, the temperature of the separation tank is 90° C., and the static separation time is 100 minutes, so that the water and the tar Layering, the water content of the tar after standing and separating is 3.0...

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Abstract

The invention discloses a processing technology for water / ash-containing tar. The processing technology is characterized in that flash evaporation is carried out on ash-containing tar twice after demulsification dehydration and flash evaporation dehydration are carried out on the water / ash-containing tar; and distillate oil after the secondary flash evaporation is cooled and separated to form finished product oil. The concrete processing technology comprises the steps of standing dehydration, flash evaporation dehydration and ash-containing asphalt separation. Compared with the prior art, theinvention has the advantages of simple process, convenient operation and stable oil quality, can effectively separate water content and ash content in the tar, and establishes a foundation for further comprehensive use of the distillate oil in the tar.

Description

technical field [0001] The invention relates to the technical field of coal tar processing, in particular to a water / ash tar processing technology. Background technique [0002] The tar produced in the process of coal gasification, semi-coal processing, and coal-fired polygeneration, due to the emulsification of water and tar, it is difficult to separate the water in the tar by ordinary static methods, and at the same time, due to the fine ash brought into the coal by the tar. The emulsification of the tar is further aggravated. The ash in the tar is evenly suspended in the tar due to the fine particles, and it is difficult to separate the ash by gravity settling and centrifugation. [0003] To sum up, it is difficult to remove the ash and moisture in the water-containing and ash-containing tar in the prior art, and it can only be used as ordinary heavy fuel oil, so that the utilization value of the tar is not high, resulting in a large waste of resources. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/02
Inventor 杨东平王洪波李来广
Owner 杨东平