首页>
外国专利>
A method of catalytic dewatering of at least one refinery-derived lubricator precursor precursor and a lubricator prepared thereby
A method of catalytic dewatering of at least one refinery-derived lubricator precursor precursor and a lubricator prepared thereby
展开▼
机译:一种至少一种精炼厂衍生的润滑剂前体前体的催化脱水方法及由此制备的润滑剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
A process for catalytic dewaxing of more than one refinery-derived lubricating base oil precursor which comprises contacting in a first reaction zone in the presence of a hydrogen-containing gas at hydrodewaxing conditions a first feed stream comprising a first refinery-derived raffinate lubricating base oil precursor which contains a first wax comprising straight-chain paraffins with a first hydrodewaxing catalyst selective for conversion of said first wax and contacting in the presence of a hydrogen-containing gas at hydrodewaxing conditions in a parallel-situated second reaction zone a second refinery-derived raffinate lubricating base oil precursor which contains a second wax containing branched and/or cyclic hydrocarbons with a second hydrodewaxing catalyst selective for conversion of said second wax, and optionally contacting in one or more further reaction zones further refinery-derived waxy raffinate lubricating base oil precursor feed streams in the presence of a hydrogen-containing gas at hydrodewaxing conditions with a hydrodewaxing catalyst, and removing at least two parallel effluent streams of refinery dewaxed lubricating base oils from said reaction zones.
展开▼