شماره ركورد كنفرانس :
5048
عنوان مقاله :
Synthesis of MTO Catalyst for Enhancement of Light Olefins Selectivity; Study the Effect of Crystallization time, Agitation and Template ratio
Author/Authors :
A ،Taheri Najafabadi Chemical Engineering Department - University of Tehran , Sh ،Fatemi Chemical Engineering Department - University of Tehran , P ،Omrani Chemical Engineering Department - University of Tehran , M ،Sohrabi Chemical Engineering Department - Amirkabir University of Technology
كليدواژه :
SAPO-34 , Synthesis , MTO reaction , catalyst performance , low olefins selectivity
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
The silicoaluminophosphate (SAPO)-34 as the catalyst of methanol conversion to low olefins; ethylene and
propylene, was synthesized using the hydrothermal method. Tetraethyl ammonium hydroxide (TEAOH) was
employed as the organic template of the synthesis process at two different levels. The effect of some
operational conditions such as time of synthesis and presence or absence of agitation during crystallization
have been studied on the property of the prepared catalyst. The instrumental techniques such as BET, XRD and
FT-IR were employed to characterize the synthesized samples. The catalytic performance of the samples was
tested in MTO reaction and the activity of the catalyst and selectivity toward ethylene and propylene
production against CO, CO2 and parafins were examined. The results revealed that crystallization
accompanied by agitation during 24 hr at 200C with higher molar ratio of TEAOH could achieve to a catalyst
with higher stability and higher selectivity of light olefins in MTO reaction.
