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Process and device for producing various asphalt products by combining distillation and extraction

A technology for asphalt products and process equipment, which is applied in the processing of tar by distillation, processing tar pitch/petroleum pitch/natural pitch by distillation, and processing tar pitch/petroleum pitch/natural pitch by selective extraction, etc. High, few kinds of asphalt products, can not meet the needs of various asphalt products and other problems, to achieve the effect of environmental protection, avoid high temperature coking, shorten the conveying distance

Pending Publication Date: 2019-03-26
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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AI Technical Summary

Problems solved by technology

[0010] To sum up, in the current tar processing and production process, there are few varieties of asphalt products and low added value, and a set of production equipment can only produce one kind of asphalt product, which cannot meet the market demand for various asphalt products

Method used

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  • Process and device for producing various asphalt products by combining distillation and extraction

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Embodiment Construction

[0048] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0049] See figure 1 As shown, the present invention relates to a combination of distillation and extraction to produce a variety of asphalt products, including a dehydration tower 1, a distillation system, an extraction system and an asphalt modification system, wherein the dehydration tower 1 is provided with a tar Inlet, water / light oil production outlet, dehydrated tar production outlet;

[0050] The distillation system consists of 1 # Heating furnace 2, 1 # Distillation tower 3, 2 # Heating furnace 4, 2 # Composed of 5 distillation towers, of which 1 # Distillation column 2 and 1 # The heating furnace is connected to 3, the top of the tower is equipped with a phenol oil extraction outlet, the side line is equipped with a naphthalene oil extraction outlet and a washing oil extraction outlet, and the bottom of the tower is equipped with fo...

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Abstract

The invention relates to a process and a device for producing various asphalt products by combining distillation and extraction. The device comprises a dehydration tower, a distillation system, an extraction system and an asphalt modification system. Coal tar is used as a raw material to produce low-temperature asphalt, medium-temperature asphalt, modified asphalt, low-quinoline insoluble refinedasphalt, impregnated asphalt, hard asphalt, binder asphalt and other products by using a combined production process of distillation, extraction and asphalt modification. A variety of high value-addedasphalt products can be produced simultaneously with a set of production device, the utilization of the device is maximized, and the process and the device are adaptive to the needs of large-scale tar processing.

Description

technical field [0001] The invention relates to the technical field of coal tar processing technology in the metallurgical coking industry, in particular to a technology and a device for producing various pitch products by combining distillation and extraction. Background technique [0002] In recent years, with the development of the coking industry, tar processing tends to be more and more centralized, large-scale, fine separation and deep processing. Coal tar pitch is a bulk product separated from coal tar processing, accounting for about 50-50% of tar 60%, is an important chemical raw material, which is widely used in electrode materials, refractory materials, carbon industry, road construction, building materials and other industries. [0003] At present, the asphalt products produced by the existing tar processing mainly include low-temperature asphalt, medium-temperature asphalt and modified asphalt, and the corresponding production processes are as follows: [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/16C10C1/18C10C3/06C10C3/08
CPCC10C1/16C10C1/18C10C3/002C10C3/005C10C3/06C10C3/08
Inventor 单春华姜秋李瑞叶煌
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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