FIELD: chemical industry.
SUBSTANCE: present invention relates to a catalyst system for the dewaxing of hydrocarbon feedstock. The catalyst system comprises a mixture of the first dewaxing catalyst composition and the second dewaxing catalyst composition, wherein the first dewaxing catalyst composition is the ZSM-12 zeolite catalyst composition and the second dewaxing catalyst composition is the EU-2 zeolite catalyst composition and /or ZSM-48, and in which the concentration gradient of the mixture is achieved within one catalyst bed such that the concentration of the first dewaxing catalyst composition decreases and the concentration of the second dewaxing catalyst composition increases throughout the catalyst bed. The invention also relates to a method for the dewaxing of hydrocarbon feedstock, which includes contacting the hydrocarbon feedstock with said catalyst system.
EFFECT: improved performance of the dewaxing catalyst in terms of increased selectivity and high activity of the catalyst and improved base oil yield.
10 cl, 1 dwg, 2 tbl, 5 ex
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