Patent ID: 7511184

Claim:
A process for converting an oxygenate feedstock into one or more olefin(s) in the presence of a molecular sieve catalyst composition, the molecular sieve catalyst composition having been made by a method comprising: mixing together a composition comprising a molecular sieve, a binder, and a matrix material, wherein the composition has a weight ratio of binder to molecular sieve from greater than 0.13 to 0.71; spray drying the resulting composition; and thereafter calcining the spray dried product in a rotary bed calciner, fluid bed calciner, or batch oven at a temperature of from about 400Â° C. to 1000Â° C. in a calcination environment selected from air, nitrogen, helium, flue gas, and combinations thereof, to form a molecular sieve catalyst composition having a micropore surface area (MSA) of at least 70% of the MSA of the molecular sieve, the process comprising contacting the oxygenate feedstock with the molecular sieve catalyst composition under conditions sufficient to form the one or more olefin(s).