FIELD: hydrocarbon conversion catalysts. SUBSTANCE: catalyst contains matrix composed of eta- and gamma-alumina with at least 3% (based on the total catalyst weight) eta-alumina; 0.001 to 10% of at least one alloying metal selected from group including titanium, zirconium, hafnium, cobalt, nickel, zinc, lanthanides, and alkali and alkali-earth metals; 0.1 to 15% of at least one halogen (fluorine, chlorine, bromine, and iodine); 0.01 to 2% of at least one precious platinum-group metal; and 0.05 to 10% of at least one promoting metal: tin, germanium, indium, gallium, thallium, antimony, lead, rhenium, manganese, chromium, molybdenum, and tungsten. EFFECT: increased activity and stability of catalyst. 33 cl, 6 tbl, 4 ex
