Improving the efficiency of high-temperature processes for producing lower olefins via deep-processing of by-products

Processes for producing lower olefins are critically examined. It is noted that pyrolysis of various types of hydrocarbon is
still the main process of obtaining ethylene and propylene, and is accompanied by the formation of considerable amounts of by-products,
such as liquid pyrolysis products. We present an analysis of domestic and foreign scientific, technical, and patent information pertaining to the
rational use of petrochemical production by-products, aimed at obtaining hydrocarbon (petroleum) resins. We consider the raw materials
involved in obtaining the resins, and generalize data on existing methods of obtaining resins using thermal, initiated, and ion (catalyst)
polymerization.