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公开(公告)号：US20210403823A1
公开(公告)日：2021-12-30
申请号：US17280864
申请日：2019-09-24
发明人： Seung Eon LEE , Hak Mook KIM , Jin Hee OK , Kyung Seok NOH , Jun Soo PARK , Yong Rae CHO
IPC分类号： C10M101/02
摘要： Proposed is a mineral lubricating base oil having improved low-temperature performance, in which the lubricating base oil has kinematic viscosity of 9.0 cSt or less (at 40° C.), kinematic viscosity of 2.5 cSt or less (at 100° C.), and a pour point of −50° C. or less.
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2.发明申请公开(公告)号：US20230054666A1
公开(公告)日：2023-02-23
申请号：US17890252
申请日：2022-08-17
发明人： Young Wook JEON , Jin Hee OK , Kyung Seok NOH , Do Woan KIM
IPC分类号： C10G69/02 , C10G61/04 , C10M101/02 , C10M175/00
摘要： Proposed is a process of producing a high-quality lube base oil using a refined oil fraction obtained from waste lubricant as a feedstock. The process includes purifying waste lubricant to obtain a refined oil fraction, pretreating the refined oil fraction, and blending the pretreated refined oil fraction with unconverted oil (UCO), before or after vacuum distillation and catalytic dewaxing of the unconverted oil, or between the vacuum distillation and the catalytic dewaxing of the unconverted oil.
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3.发明申请公开(公告)号：US20200291321A1
公开(公告)日：2020-09-17
申请号：US16748978
申请日：2020-01-22
发明人： Hak Mook KIM , Kang Min JUNG , Kyung Seok NOH , Yong Rae CHO
IPC分类号： C10M101/02 , C10M177/00 , C10G53/02
摘要： Disclosed is a mineral base oil including 85 to 92 wt % of a paraffinic hydrocarbon and 8 to 15 wt % of a naphthenic hydrocarbon and having a Noack volatility of 10 to 12 wt % and a viscosity index of 132 to 142.
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公开(公告)号：US20240343983A1
公开(公告)日：2024-10-17
申请号：US18424874
申请日：2024-01-29
发明人： Minje Kang , Yun Ha KIM , Do Woan KIM , Kyung Seok NOH
CPC分类号： C10G65/12 , C10G7/003 , C10M101/02 , C10G2300/302 , C10G2400/10
摘要： The present disclosure provides a method of preparing a lube base oil. The method comprises (a) providing a feed stream, (b) separating the feed stream into at least two fraction streams comprising a first fraction stream and a second fraction stream, and (c) before or after the separating of the feed stream, introducing the feed stream or at least two fraction streams into a first and second hydro-processing treatments to produce at least two product streams, and the first product stream has a higher viscosity index (VI) than the second product stream. The present disclosure also provides a lube base oil and a lubricant composition comprising the lube base oil.
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5.发明公开公开(公告)号：US20230416621A1
公开(公告)日：2023-12-28
申请号：US18456321
申请日：2023-08-25
发明人： Young Wook JEON , Jin Hee OK , Kyung Seok NOH , Do Woan KIM
IPC分类号： C10G69/02 , C10G61/04 , C10M101/02 , C10M175/00
CPC分类号： C10G69/02 , C10G61/04 , C10M101/02 , C10M175/0016 , C10M175/0033 , C10M175/005 , C10N2030/41
摘要： Proposed is a process of producing a high-quality lube base oil using a refined oil fraction obtained from waste lubricant as a feedstock. The process includes purifying waste lubricant to obtain a refined oil fraction, pretreating the refined oil fraction, and blending the pretreated refined oil fraction with unconverted oil (UCO), before or after vacuum distillation and catalytic dewaxing of the unconverted oil, or between the vacuum distillation and the catalytic dewaxing of the unconverted oil.
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