Development and utilization of medium- and low-temperature coal tar asphalt
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In recent years, the production of medium- and low-temperature coal tar in our country has grown rapidly. After distillation, the light components of medium- and low-temperature coal tar are used as feedstocks for hydrogenation to produce gasoline and diesel, while the distillation residues (asphalt) do not have effective utilization methods； Let’s discuss how each of us has utilized the downstream products of medium and low-temperature coal tar asphalt.
Regarding the development and utilization of medium- and low-temperature coal tar asphalt, the following methods exist for creating downstream products: 1. Asphalt mixtures: Medium- and low-temperature coal tar asphalt is mixed with other additives and used in road construction as a material to improve pavement performance, thereby enhancing the utility of the asphalt. 2. Alternatives to petroleum asphalt: Medium- and low-temperature coal tar asphalt is used as a substitute to replace part of the petroleum asphalt in applications. This can reduce dependence on petroleum resources and minimize environmental pollution. 3. Asphalt fuel: Medium and low-temperature coal tar asphalt is processed into fuel under appropriate technical conditions. This fuel can be used for boiler combustion, as well as in heating and other applications. 4. Asphalt emulsifier: Medium- and low-temperature coal tar asphalt is subjected to special treatment to enable it to dissolve in water, forming a stable emulsion. This emulsion can be used as emulsified asphalt and is widely applied in road construction. 5. Asphalt binder: Medium- and low-temperature coal tar asphalt is used as a binder in the manufacture of building materials, such as asphalt waterproofing membranes and asphalt binders. The above are merely some common ways of developing and utilizing downstream products derived from medium- and low-temperature coal tar asphalt; the specific approach to be adopted must be determined based on factors such as market demand, technical conditions, and economic benefits. .