METHOD OF HYDRAULIC REFINING AND CATALYTIC DEWAXING OF COMPONENTS OF MINERAL OILS AND SYSTEM OF CATALYSTS FOR REALIZATION OF THIS METHOD Russian patent published in 2003 - IPC

FIELD: petroleum chemistry. SUBSTANCE: components of mineral oils are subjected to hydraulic refining and catalytic dewaxing in presence of catalytic system containing nickel and molybdenum at mass ratio of 1:2- 3 at total content of up to 30 mass-% on active aluminum oxide and dewaxing catalyst containing medium-silica zeolite at silicate modulus of 33-38 and volume ratio of dewaxing and refining catalysts of 1:1.2-8, respectively. Process is performed at temperature of 340-400 C, pressure of 3.0-7.0 Mpa, bulk speed of 0,4÷1,0 h^-1 and ratio of hydrogen-containing gas: raw material 500-1500: 1 n. vol/vol of raw material. EFFECT: improved quality of mineral oil components. 3 cl, 2 tbl, 4 ex