Integrated hydrocracking and dewaxing of hydrocarbons

US8617383B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Krista Marie Prentice · Fryeburg, US
• Michel Daage · Baton Rouge, US
• Ajit B. Dandekar · South Plainfield, US
• Christopher G. Oliveri · Stewartsville, US
• Rohit Vijay · Bound Brook, US
• Stephen J. McCarthy · Center Valley, US
• Wenyih F. Lai · Bound Brook, US
• Bradley R. Fingland · Jackson, US

Key dates

• Filing date: Jun 27, 2011
• Grant date: Dec 31, 2013
• Expiry date: Feb 16, 2032

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 naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen 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 with only a high pressure separation so that the dewaxing still occurs under sour conditions. Various combinations of hydrotreating, catalytic dewaxing, hydrocracking, and hydrofinishing can be used to produce fuel products and lubricant base oil products.