Sour service dewaxing catalyst without separate hydrogenation function

US8263519B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Christine N. Elia · Bound Brook, US
• Mohan Kalyanaraman · Media, US
• Michel Daage · Baton Rouge, US
• Stephen H. Brown · Lebanon, US
• Lei Zhang · Beijing, CN
• Robert A. Crane · Lower Saucon Township, US
• Valery Sokolovskii · Santa Clara, US
• David M. Lowe · Sunnyvale, US
• Jun Han · Daejeon, KR
• Nicholas Ohler · San Leandro, US
• Daniel Giaquinta · Saratoga, US
• Anthony F. Volpe, Jr. · Sunnyvale, US

Key dates

• Filing date: Dec 18, 2008
• Grant date: Sep 11, 2012
• Expiry date: Mar 6, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2229/42
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.