Integrated hydrocracking and dewaxing of hydrocarbons

US8394255B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Stephen J. McCarthy · Center Valley, US
• Gary P. Schleicher · Milford, US
• Krista Marie Prentice · Fryeburg, US
• Michel Daage · Baton Rouge, US
• Christopher G. Oliveri · Stewartsville, US
• Thomas F. Degnan · Yardley, US
• Jose G. Santiesteban · Baton Rouge, US
• Ajit B. Dandekar · South Plainfield, US
• William J. Novak · Bedminster, US
• Wenyih F. Lai · Bound Brook, US

Key dates

• Filing date: Dec 23, 2009
• Grant date: Mar 12, 2013
• Expiry date: Aug 19, 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 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 a high pressure separation can be used to partially eliminate contaminants. The integrated process includes an initial hydrotreatment, hydrocracking, catalytic dewaxing of the hydrocracking effluent, and an option final hydrotreatment.