发明申请
US20060201851A1 Multiple side draws during distillation in the production of base oil blends from waxy feeds 失效
在从蜡质饲料生产基础油混合物时,在蒸馏过程中进行多边牵引

Multiple side draws during distillation in the production of base oil blends from waxy feeds
摘要:
A process for producing a product slate, which includes at least three base oil grades having kinematic viscosities at 100° C. within the range between about 1.8 cSt and 30 cSt, from a waxy feed having an initial boiling point of about 340° C. or less and a final boiling point of about 560° C. or higher, said process comprising (a) isomerizing at least a portion of the waxy feed, whereby the amount of isoparaffins present are increased; (b) distilling a first portion of the isomerized waxy feed in light block mode operation into at least three base oil fractions having different boiling ranges; (c) distilling a second portion of the isomerized waxy feed in medium block mode operation into at least three base oil fractions having different boiling ranges; and (d) blending at least one base oil fraction produced from light block mode with at least one base oil fraction produced from medium block mode to produce a lubricating base oil blend meeting a target value for at least one pre-selected property.
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