Disclosed is a crystalline silicoaluminophosphate molecular sieve comprising a porous framework structure and at least one single ring aromatic compound within the porous framework structure. The silicoaluminophosphate molecular sieve is used to convert oxygenate feed stock to olefin product. The olefin...http://www.google.com.au/patents/US6734330?utm_source=gb-gplus-sharePatent US6734330 - Catalyst pretreatment in an oxygenate to olefins reaction system
