What are the main uses of low-temperature coal tar and medium-temperature coal tar?
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What are the main uses of low-temperature coal tar and medium-temperature coal tar? Can they be used for anything other than as fuel?
Petrol and diesel fractions can also be produced. In the end, it all becomes fuel. The content of elements that are useful is very low in them.
Currently, the main technical approaches for the deep processing of medium- and low-temperature coal tar are as follows: 1. Extracting chemical products such as benzene, phenol, naphthalene, and pyridine from the light fractions of coal tar, while using coal tar pitch as a component to modify conventional road asphalt. 2. The light fractions of coal tar are refined using acid-base or adsorption methods, and then blended with ordinary heavy diesel or fuel oil. An appropriate amount of methanol can also be added to increase the total yield of light oil. Coal tar pitch is blended with conventional road asphalt. 3. Light fractions or the entire fraction stream can be hydrogenated to produce high-quality gasoline and diesel blending components or high-quality fuel oils, which can then be used to blend coal tar pitch into heavy fuel oils.
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Oil transmission pipelines burn a large amount of crude oil each year; studies have shown that light coal tar can be used as a substitute for crude oil, thereby saving significant amounts of money