THE MECHANISM OF OXIDATION OF HYDROCARBON COMPOUNDS DURING THERMO-OXIDATIVE AGING OF PETROLEUM BITUMEN

Abstract

The most urgent problems in the oil refining industry, along with the deepening of oil refining, remain the problems of improving the quality of petroleum products, which include oil road bitumen. The strength and durability of road asphalt concrete coatings largely depends on the quality of the bitumen used, which is primarily determined by their resistance to thermal and thermo-oxidative degradation, due to the presence of easily oxidizing groups in heavy fraction molecules.
However, road surfaces based on them do not always and do not fully meet the climatic conditions of operation. One of the reasons for this is the accelerated aging of road bitumen, especially those produced by compounding technologies of raw materials or an oxidized product with components containing easily oxidizing aromatic compounds. increasing the thermal-oxidative stability of oxidized road bitumen is an urgent problem for most of their manufacturers and consumers.
The scientific article is devoted to the study of the propensity of road bitumen obtained at bitumen plants using various technologies and from raw materials of various composition to thermo-oxidative aging, establishing the relationship between the degree of elasticity and stability to thermo-oxidative aging of petroleum road bitumen.