Continuous production process of mesocarbon microbeads

Abstract

The invention provides a continuous production process of mesocarbon microbeads. The continuous production process comprises the following steps: uniformly mixing medium-temperature asphalt and anthracene oil in a raw material tank, mixing the obtained mixture with a circulating material which comes from a heating kettle and is heated by a heating furnace of the heating kettle, feeding the mixed materials into the heating kettle, heating the mixed materials to a certain temperature by the heating kettle, mixing one part of the mixed materials with a circulated reacted material which comes froma reaction kettle and is heated by a heating furnace of the reaction kettle, feeding the finally obtained mixture into the reaction kettle, keeping a certain temperature in the reaction kettle, and carrying out thermal polycondensation reaction to obtain carbon microsphere-containing intermediate asphalt; and cooling, washing, separating, drying and cooling the intermediate asphalt to obtain a finished product, namely themesocarbon microbeads. The process is simple in technological process, high in automation degree, easy to operate, low in energy consumption, low in equipment investment, good in environment-friendly effect and suitable for large-scale industrial continuous production.

Description

technical field [0001] The invention relates to the technical field of coal tar pitch processing in the metallurgical coking industry, in particular to a continuous production process of mesophase carbon microspheres, which takes medium-temperature pitch and anthracene oil obtained by coarse separation of coal tar as raw materials, and uses wash oil and light oil as solvents. . Background technique [0002] Medium-temperature pitch is the largest product obtained from coal tar processing, and its yield accounts for more than 50% of the coal tar processing volume. The price of asphalt products plays a leading role in the economic benefits of coal tar processing projects. In the existing coal tar processing enterprises, the medium temperature asphalt is directly sold as a product, and the second is processed to obtain modified asphalt products for sale. For many years, whether it is medium-temperature asphalt or modified asphalt, the product price is only slightly higher tha...

AI Technical Summary

Problems solved by technology

[0004] At present, the production of mesophase carbon microspheres generally adopts the thermal polycondensation process of intermittent operation. The processing capacity of a single set of equipment is small, the energy consumption is large, the level of automation control is low, and the labor intensity of workers is high.

Moreover, due to the instability of intermittent operation, the production capacity of the device cannot reach the design load, not only a serious waste of resources, but also the enterprise has not obtained due economic benefits

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