Involvement of products of thermal processing of polymer waste into the raw material pool of oil refinery plants

Abstract

The directions of involving the products of thermal processing of polymer waste into the raw material pool of oil refineries are considered. A detailed analysis of fractions 85-180 oC, 180-360 oC and 360-KK oC, isolated from thermolysis products, has been carried out. Fractions 85-180 °C, 180-360 °C of thermolysis oil are characterized by a high content of organosulfur compounds, which necessitates their hydrotreating before use. After desulfurization, gasoline and diesel fractions can be used in the composition of gasoline and diesel fuels, respectively. The diesel fraction of 180-360 °C of thermolysis oil has a high cetane number and can be considered as a cetane-increasing component. Fraction 360-КК оС thermolysis oil is a potential component of catalytic cracking feedstock. The highest degree of conversion and the yield of valuable components (gasoline, propylene, butane-butene fraction) are achieved during cracking of feedstock containing 30 wt. % of the heavy part of thermolysis oil.