Heat treating a molecular sieve and catalyst

US6503863B2 · kind B2 · utility

Assignee

• ExxonMobil Chemical Patents Inc. · US

Inventors

• Shun C. Fung · Bound Brook, US
• Marcel Janssen · Kessel-Lo, BE
• Stephen N. Vaughn · Kingwood, US
• Machteld M. Mertens · Boortmeerbeek, BE
• Albert E. Schweizer · Midland, US
• Luc Martens · Meise, BE
• Richard B. Hall · Whitehouse Station, US
• Wilfried J. Mortier · Kessel-Lo, BE
• Ronald G. Searle · Houston, US
• Yi Xiong · Houston, US

Key dates

• Filing date: Aug 15, 2001
• Grant date: Jan 7, 2003
• Expiry date: Aug 15, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2529/85
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed is a method of heat treating a molecular sieve. The method comprises providing a template-containing molecular sieve, heating the molecular sieve under conditions effective to remove a portion of the template from the molecular sieve, and cooling the heated molecular sieve to leave an amount of template effective to cover catalytic sites within the molecular sieve. A catalyst composition is also provided which comprises a molecular sieve having a microporous structure and a binder, wherein between 10 and 90 vol % of the microporous structure is occupied by a material, the material comprising a template or a carbonaceous residue of a template, and the catalyst composition exhibits a Davison Index of not greater than 30.