Method of producing lube stocks from waxy crudes

Details Method of producing lube stocks from waxy crudes Method of producing lube stocks from waxy crudes

1985-12-20

1987-07-07

Metz, Andrew H.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

208 18, 208 33, 208 87, 208111, C10G 5506, C10G 7306

Patent

active

046785566

ABSTRACT:
Multi-step synergistic process for converting waxy-containing hydrocarbon feedstocks to lube oil stocks having targeted pour points is disclosed. The waxy feed is first catalytically partially dewaxed with the catalyst having the structure of ZSM-5, and then the partially dewaxed oil is subjected to solvent dewaxing to reach a targeted pour point. Pretreating the crude prior to catalytic dewaxing process such as by deasphalting and aromatic removal is also disclosed. In an alternative process, the waxy-containing hydrocarbon feed is subjected to the steps of solvent dewaxing, catalytic dewaxing, and solvent dewaxing.

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Bennett, et al, New Process Produces Low-Pour Oils, pp. 69-72.

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