Optimization of Acrylic Acid Production From Glycerol Using Aluminium-Based MOF
Pratiwi, Fatimah Tresna1)- Listyaningrum, Nur Baiti2)- Solikhah, Maharani Dewi1)- Abdullah, Iman3,4)- Krisnandi, Yuni Krisyuningsih3,4)

1 Research Center for Energy Conversion and Conservation, National Research and Innovation Agency, Kawasan PUSPIPTEK Building 480, Tangerang Selatan, Banten, 15314, Indonesia
2 Laboratory of Fuel Technology and Design Engineering, National Research and Innovation Agency, Kawasan PUSPIPTEK Building 480, Tangerang Selatan, Banten, 15314, Indonesia
3Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia 16424
4Solid Inorganic Framework Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia 16424

Abstract

The conversion of glycerol to acrylic acid was conducted using an aluminum-based MOF catalyst (Al-BDC), with variations observed in the type of metal, specifically Fe, V, and Mo. Variations in operating conditions such as glycerol concentration, addition of oxidants, and catalyst ratios were carried out only using the Fe-Al catalyst. The Al-BDC catalyst was synthesized via mechanochemistry using a horizontal ball miller, and metal incorporation was performed using incipient wetness impregnation. Among the metal type variations, the Fe/Al-BDC-70 catalyst generated the highest acrylic acid yield of 25.2%. Increasing the drying temperature for all types of metals reduces acrylic acid yield. The production of acrylic acid is more favorable with lower concentrations of glycerol. Regarding glycerol concentration, employing 78% lowered the acrylic acid output to 6%. The reaction kinetics are also affected by the variation in H2O2 addition intervals. The addition of H2O2 after a duration of 3 hours leads to a diminished yield of acrylic acid in comparison to its addition every 15 minutes from the beginning of the reaction. When a greater catalyst-to-feed ratio was used, a comparable outcome was also noted.

Keywords: Acrylic acid, Glycerol, Oxydehydration, MOF

Topic: Renewable energy