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Silica‐supported morpholine alkaline ionic liquid catalysts for preparation of biodiesel
Author(s) -
Zeng XiangRui,
Wang LuLu,
Wang JiLin
Publication year - 2021
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23921
Subject(s) - catalysis , thermogravimetric analysis , ionic liquid , transesterification , methanol , chemistry , biodiesel , biodiesel production , morpholine , fourier transform infrared spectroscopy , adsorption , nuclear chemistry , inorganic chemistry , organic chemistry , chemical engineering , engineering
Biodiesel was synthesized by transesterification of soybean oil and methanol over a silica‐supported morpholine alkaline ionic liquid catalyst (SILC). Characterization of SILC was performed using 1 H‐nuclear magnetic resonance ( 1 H‐NMR), Fourier‐transform infrared spectroscopy (FT‐IR), x‐ray diffraction, thermogravimetric analysis (XRD), and nitrogen adsorption‐desorption isotherms. Transesterification proceeded satisfactorily over SILC at ambient pressure and without simultaneous water removal. Under optimal reaction conditions, including 60°C, 4 hours, reactant/catalyst molar ratio of 14/1, and 3‐wt% catalyst, a high yield of biodiesel (94.5%) was obtained. SILC's reusability was more than six times, with no obvious decrease in catalytic activity observed.