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公开(公告)号:EP0783470A4
公开(公告)日:1997-12-03
申请号:EP94924489
申请日:1994-07-25
申请人: MOBIL OIL CORP
CPC分类号: B01J29/7007 , B01J29/7415 , B01J2229/20 , B01J2229/36 , C10G2400/10 , Y10S208/95
摘要: High silica to alumina ratio zeolite beta modified with boron, tin, lead or indium and combined with a hydrogenation/dehydrogenation component is used to convert Fischer-Tropsch heavy end products which may contain paraffins, olefins and oxygenates into low pour point distillates with high cetane number and extra high VI lube is described. The lube can be dewaxed by a conventional solvent process, by a catalytic process, or by increasing the severity of the hydroisomerization step.
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公开(公告)号:EP0799082A4
公开(公告)日:1998-12-30
申请号:EP95941486
申请日:1995-12-02
申请人: MOBIL OIL CORP
发明人: APELIAN MINAS ROBERT , BORGHARD WILLIAM STERN , DEGNAN THOMAS FRANCIS , HANLON ROBERT TRYON , RUBIN MAE KOENIG
IPC分类号: C10G45/64 , C10G47/12 , C10G49/02 , C10G65/02 , C10G65/04 , C10G65/12 , C10G67/04 , C10G71/00 , C10G73/06 , C10G73/44 , B01B1/00
CPC分类号: C10G45/64
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公开(公告)号:EP0796304A4
公开(公告)日:1998-12-30
申请号:EP95943384
申请日:1995-12-07
申请人: MOBIL OIL CORP
IPC分类号: B01J29/78 , C10G45/64 , C10G47/12 , C10G65/04 , C10G65/10 , C10G65/12 , C10G67/04 , C10G70/06 , C10M101/02 , C10M177/00 , C10N30/02 , C10G47/00 , C10G47/04
CPC分类号: C10G65/043 , C10G45/64 , C10G2400/10
摘要: Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with a conversion to lube range products of between generally 30 and 40 wt.% of the feed. The hydrocracking is carried out at a hydrogen pressure of at least 800 psig (5617 PkPaa) using an amorphous catalyst which preferentially removes the aromatic components present in the initial feed. The hydrocracked effluent is then subjected to hydroisomerization in a second step using a low acidity zeolite beta catalyst. The second stage may be operated at high pressure by cascading the first stage product into the second stage or at a lower pressure, typically from 200 to 1000 psig (1480 to 6996 PkPaa). The second stage catalyst is preferably a noble metal containing zeolite beta catalyst. The second stage is carried out at relatively low temperature, typically from 600° to 650 °F (316 to 343 °C). A final dewaxing step to target pour point may be used.
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