Abstract
The possibility of obtaining petroleum pitches from heavy pyrolysis resin, the heavy distillate formed in production of pitch from heavy pyrolysis resin, and heavy catalytic gasoil is examined. The composition and physicochemical properties of the petroleum pitches obtained and the intermediate products from the process are investigated. The important possibility of obtaining isotropic fiber-forming petroleum pitches with a yield of 20–23.1 wt. % from heavy pyrolysis resin in a unit with an intermittent reactor is demonstrated.
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