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- W2982635671 abstract "Abstract For the first time, intensification of monooleoyl glycerol (MOG) synthesis has been investigated in an ultrasonic‐infrared‐wave (USIRW) promoted batch reactor. Esterification of octadecanoic acid (ODA) with glycerol (Gl) has been conducted [using Amberlyst 36 wet catalyst] in three different reactors, namely traditional batch reactor (TBR), infrared wave promoted batch reactor (IRWPBR), and USIRW‐promoted batch reactor (USIRWPBR) to assess the relative efficacy. The energy‐efficient USIRWPBR remarkably intensifies the ODA‐Gl esterification as manifested through superior ODA conversion (92.5 ± 1.25%) compared to that achieved in IRWPBR (79.8 ± 1.2%) and TBR (36.39 ± 1.25%). The most favorable reaction condition for optimum ODA conversion and maximum MOG yield was identified through statistical optimization over a selected parametric range, namely 3‐5 Gl/ODA mole ratio, 0.004‐0.006 g/mL Amberlyst 36 catalyst concentration, 300‐700 rpm impeller speed, and 333‐353 K reaction temperature. The present study also reports the formulation and validation of an innovative reaction kinetics, that is, concurrent noncatalytic and heterogeneously catalyzed (CNCHC) reaction mechanism in addition to the conventional heterogeneous kinetic models (LH and Eley‐Rideal mechanisms). Under combined USIRW, the CNCHC esterification mechanism could best describe ODA‐Gl esterification ( R 2 = 0.98) compared to LH ( R 2 = 0.97) and Eley‐Rideal ( R 2 = 0.88) mechanisms. The optimal product (MOG) was characterized by differential scanning calorimetry and thermogravimetric analysis to assess its crystallization property and thermal stability for possible application as plasticizer/fuel additives." @default.
- W2982635671 created "2019-11-08" @default.
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- W2982635671 date "2019-10-29" @default.
- W2982635671 modified "2023-10-16" @default.
- W2982635671 title "Efficient monooleoyl glycerol synthesis employing hybrid ultrasonic‐infrared‐wave promoted reactor: Concurrent catalytic and noncatalytic esterification kinetics" @default.
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- W2982635671 doi "https://doi.org/10.1002/kin.21330" @default.
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