发明授权
US6099719A Hydroconversion process for making lubicating oil basestocks 失效
用于制作润滑油基础油的加氢转化过程

Hydroconversion process for making lubicating oil basestocks
摘要:
A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by solvent extracting a feedstock to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconverting the solvent dewaxed raffinate in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.
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