METHOD FOR PRODUCTION OF ECOLOGICAL CLEAN DIESEL FUEL Russian patent published in 1995 - IPC

FIELD: petrochemical industry. SUBSTANCE: straight oil run or its mixture with fraction of products of catalytic cracking boiling at 150-365 C with its content of 5.0-50.0 mas. is subjected to hydraulic treatment at the first stage in the presence of catalyst containing molybdenum, cobalt or nickel and aluminum oxides. Subjected to hydraulic treatment at the second stage are the products of the first stage, or the last products after preliminary separation. Catalyst of the second stage contains, mas. platinum and/or palladium 0.2-2.0, or mixture of platinum and/or palladium and rhenium (0.05-0.25) 0.25-2.25; chlorine 0.1-1.5 or chlorine and fluorine 0.15-1.5; the balance, heat-resistant carrier. Carrier is used in form of mixture of alumosilicate with silicate module of 5-35 and zeolite V with silicate module of 3-7 and replacement degree of hydrogen ions with metal ions of 2.0-50.0% with the content of the latter of 1.0-11.0 mas. on matrix of aluminum oxide at mass ratio of aluminium oxide and mixture equalling 30: 70. Used at the first stage may be catalyst containing, mas. molybdenum oxide 7.0-18.0; cobalt oxide or nickel oxide 2.0-9.5; the balance, aluminum oxide or molybdenum oxide 8.0-16.0; cobalt oxide 2.0-6.0; phosphorus oxide 3.0-5.0; ferrous oxide 0.01-0.05; the balance, aluminum oxide. EFFECT: higher efficiency. 2 cl, 3 tbl