The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2006
Filed:
Jun. 20, 2003
Peter N. Loezos, Houston, TX (US);
Shun Chong Fung, Bridgewater, NJ (US);
Stephen Neil Vaughn, Kingwood, TX (US);
Kenneth Ray Clem, Humble, TX (US);
James H. Beech, Kingwood, TX (US);
Nicolas P. Coute, Houston, TX (US);
Marcel Johannes Janssen, Kessel-Lo, BE;
Luc Roger Marc Martens, Meise, BE;
Karl G. Strohmaier, Port Murray, NJ (US);
Peter N. Loezos, Houston, TX (US);
Shun Chong Fung, Bridgewater, NJ (US);
Stephen Neil Vaughn, Kingwood, TX (US);
Kenneth Ray Clem, Humble, TX (US);
James H. Beech, Kingwood, TX (US);
Nicolas P. Coute, Houston, TX (US);
Marcel Johannes Janssen, Kessel-Lo, BE;
Luc Roger Marc Martens, Meise, BE;
Karl G. Strohmaier, Port Murray, NJ (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The invention is directed to methods for protecting metalloaluminophosphate molecular sieves, particularly silicoaluminophosphate (SAPO) molecular sieves, from loss of catalytic activity due to contact with a gas containing water. The methods of the invention provide procedures that enable activated sieve to contact water vapor, within a certain range of time, temperature, and water partial pressure conditions, before the sieve becomes substantially deactivated.