Sour service hydroprocessing for lubricant base oil production

US8366908B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Krista Marie Prentice · Fryeburg, US
• Gary P. Schleicher · Milford, US
• Lei Zhang · Beijing, CN
• Timothy L. Hilbert · Sewell, US
• Michel Daage · Baton Rouge, US
• Sylvain Hantzer · Prairieville, US
• Wenyih F. Lai · Bound Brook, US
• David Mentzer · Orlean, US
• William F. Heaney · Hamilton Township, US
• Christine N. Elia · Bound Brook, US
• Shifang Luo · Pittsford, US
• Stephen J. McCarthy · Center Valley, US
• Mohan Kalyanaraman · Media, US

Key dates

• Filing date: Dec 23, 2009
• Grant date: Feb 5, 2013
• Expiry date: Jun 30, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An integrated process for producing lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants.