Temperature and dilution effects on MTO process with a SAPO-34-based catalyst in fluidized bed reactor

Conversion of methanol to light olefins (MTO) using SAPO-34 molecular-sieve as the reaction catalyst was studied in a fluidized bed reactor within the temperature range of 400-550 degrees C by 50 degrees C increments and under 50, 66.6 and 90 vol% of methanol in the feed, diluted with water or an inert. SAPO-34-based catalyst was prepared by agglomeration with clay and alumina to allow proper fluidization. Catalytic results show the highest olefin yield for 500 degrees C and a reduction in catalyst deactivation for 1:1 methanol:water molar ration in the feed.

Automated summary

The conversion of methanol to light olefins was studied using SAPO-34 molecular sieve as the catalyst. The highest olefin yield was obtained at 500 degrees C with a 1:1 methanol:water molar ratio in the feed.