Contact cracking of refined gasoline in a reactor with an ascending flow of a powderous heat carrier

Conclusions

• 1. Thermal contact cracking of refined platformed gasoline in a reactor with an ascending flow of a heat carrier has been studied in laboratory and semitechnical units; the results prove that refined platformed gasolines can be used as a cracking feedstock.

• 2. It has been shown that contact cracking of refined platformed gasolines should be preferentially carried out without admixture of steam.

• 3. It has been established that unsaturated C₂–C₄ hydrocarbons, ethylene, propylene, butylénes, and divinyl can be produced in yields from 51 to 55 wt.%, 35–36%, 14–15%, 8–9%, and 4–5 wt%, respectively, from refined platformed gasolines.

• 4. Examination of the liquid cracking products from refined platformed gasolines-light oil and a 200–350°C fraction-showed that the light oil can be used as the high-octane component in car gasoline or as a starting material for the production of monocyclic aromatic hydrocarbons, and that the 200–350°C fraction can be employed as a starting material for the production of naphthalene, diphenyl, and naphthalene derivatives.