Curing and modifying process for coal coke residue oil

Abstract

The invention discloses a curing and modifying process for coal coke residue oil, and belongs to the field of coal chemical industry. With the help of the method, liquid coal coke residue oil is cured, thus greatly improving softening point of the coal coke residue oil. The curing and modifying process disclosed by the invention takes waste coke residue oil which is common in a coking plant as a raw material, and comprises the steps of adding 3-38wt% of measured modifying agent to coal coke residue oil of 90-160 DEG C, and mechanically stirring completely under a sealed circumstance or a circumstance of filling nitrogen so that the coal coke residue oil and the modifying agent react for 2-4 hours at 90-160 DEG C to obtain modified coal coke residue oil. The process disclosed by the invention makes full use of waste resource, and is simple to operate and low in cost; softening point of the coal coke residue oil is improved to be above 45 DEG C from about 10 DEG C, which meets requirements provided within Technical Specifications for Construction of Highway Asphalt Pavements (JTGF40-2004), thus pointing out a new way for research on a highway pavement material.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, in particular to a solidification modification process method of coal tar residue oil. Background technique [0002] Coal tar residue oil is a mixture of tar and solid particles such as coal powder, rubber powder and carbon black obtained by scraping the scraper conveyor from the bottom of the tar intermediate tank to the discharge funnel during the coal coking gas production process. As a low-value product in the coal chemical industry, coal tar residue has not been developed and utilized as it should, and the price is only 20-50 yuan / ton. Although a small part will be used for coal blending and coking, most of the coal tar residue is burned as fuel, resulting in waste of resources, ecological damage and environmental pollution. If the coal tar residue can be used in the pavement field, the existing resources can be fully utilized, and the waste of coal tar residue can be turned into treas...

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Problems solved by technology

[0004] In order to solve the problem that the coal tar residue cannot be applied to the road surface, the present invention proposes a modification process method for improving the softening point performance of coal tar

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