Technological Bases of Motor Gasoline Production from Secondary Polyolefin Raw Material

Abstract

The article proposes expanding the raw material base for the production of automotive gasoline by using secondary polyolefin raw materials (HDPE, PP). By processing the specified raw materials by pyrolysis in reactor-type devices at atmospheric or elevated pressure, it is possible to partially satisfy the need for a shortage of automotive gasoline. The influence of the technological parameters of pyrolysis (temperature (t, °C), pressure (P, MPa) and process duration (τ, min.)) on the volumetricyield of pyrolysis gases and gasoline fraction p.c.-180°C was investigated. It was found that with an increase in these parameters in the studied intervals (t=380-450°C, P=0.1-2.0 MPa and τ=30-90 min.) there is a significant (from 6 wt. % to 18 wt. %) increase in the yield of the fraction b.p.-180°C. In order to create rational compositions of commercial automobile gasolines, the need to compound the obtained fraction b.p.-180°C with volatile hydrocarbon fractions obtained from oil or gas condensate raw materials has been substantiated.