THE EFFECT OF SYNTHESIS TEMPERATUR ON THE PROPERTIES OF SAPO-34

SAPO-34, a silicoaluminophosphate molecular sieve, has exhibited excellent catalytic performance in methanol-to-olefin (MTO) reaction due to the contribution of small pore, medium acidity and good thermal/hydrothermal stability .In this study, the effect of synthesis temperature on the structure of SAPO-34 under hydrothermal conditions and with tri-template (TEAOH/Morpholin/TEA), was evaluated. The products were characterized by XRD, SEM and FTIR. The overall results of this study demonstrated that synthesis temperature leads to changes in specification of SAPO-34, and with increasing of synthesis temperature, amount of crytallinity, crystal size increased

Keywords:

SAPO-34 , MTO process , Synthesis temperature