FIELD: chemical technology. SUBSTANCE: method involves the feeding of parental raw with addition into furnace, mixture heating, cooling at outlet and the separation of the synthesized product for the end product and by-side components. To increase the volume of lower olefins synthesized and decrease the coke deposition amount and corrosion on the internal equipment walls the additions were dissolved in polar solvent and added to the hydrocarbon raw flow. Additions: salts of metals of periodic system II-A, phosphorus-containing compounds and, optionally, - salts of metals of periodic system I-A and sulfur-containing compounds. Polar solvents; water or alcohol. Additions were dissolved before their addition to the hydrocarbon raw flow. Product is used in oil-processing industry. EFFECT: improved method of synthesis. 17 cl, 2 tbl, 1 dwg
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