CHARACTERISTIC PROPERTIES OF SYNTHESIS PROCESS OF OLEFINS FROM METHANOL OVER MİCROPOROUS SILICOALUMINOPHOSPHATE CATALYSTS

Abstract

Silicoaluminophosphate catalysts (SAPO-34) were synthesized using hydrothermal method. İt was
investigated the influence of structure directing agents (tetraethylammonium hydroxide, morpholine,
triethylamine, diethylamine), which were used during synthesis process, to the structure and also to the
activity and stability of obtained patterns in the process of conversion of methanol to light C2-C4 olefins.
It was defined that using of tetraethylammonium hydroxide/morpholine mixed agents lead to the
formation of catalyst with stable structure, yield of light olefins over this catalyst is higher in compare to
other patterns and consist of 78%.
Keywords: zeolite, methanol, light olefins, hydrothermal, tetraethylammoniumhydroxide, morpholine, diethylamine, triethylamine