Boosted biodiesel production from waste cooking oil using novel SrO/ MgFe_2O_4 magnetic nanocatalyst at low temperature: Optimization process

Omar A. Mawlid; Hosam H. Abdelhady; Mohamed S. El-Deab

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Boosted biodiesel production from waste cooking oil using novel SrO/ MgFe_2O_4 magnetic nanocatalyst at low temperature: Optimization process

机译：Boosted biodiesel production from waste cooking oil using novel SrO/ MgFe_2O_4 magnetic nanocatalyst at low temperature: Optimization process

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This study addresses the development of a heterogeneous magnetic nanocatalyst composed of SrO/MgFe_2O_4 (Sr/ MGF) for efficient methanolysis of waste cooking oil (WCO). The thus-prepared magnetic nanocatalyst is characterized by TGA, XRD, FT-IR, FE- SEM, mapping EDX, BET, CO_2-TPD, NH3-TPD, and VSM. A systematic parametric study is screened to evaluate the optimum reaction conditions. The experimentally obtained optimum conditions are: 2 wt catalyst loading with SrO:MGF molar ratio of 7:1 operating at 45 ℃ for 180 min, and 12:1 methanol to oil molar ratio affording 96.8 biodiesel conversion. Sr/MGF is an energy conserver heterogeneous catalyst operating at low thermal energy input with markedly high biodiesel conversion. This is attributed to the superb basicity of the prepared catalyst. Kinetic and thermodynamic parameters are calculated, i.e., activation energy (E_a), change of enthalpy of activation (ΔH#), and change of entropy of activation (ΔS#) as 48.4 kJ mol~(-1), 45.7 kJ mol~(-1), and -132.5 J mol~(-1) K~(-1), respectively. Change of Gibbs free energy (ΔG#) is estimated at 318 K, 323 K, and 328 K as 87.9 kJ mol~(-1), 88.5 kJ mol~(-1), and 89.2 kJ mol~(-1), respectively. Furthermore, the physi-cochemical properties of the produced biodiesel fit perfectly within the limits of ASTM D-6751 and EN-14214 international standards. A reusability study of the catalyst reveals a significant conversion of 92.6 at the 3rd cycle.

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来源
《Energy conversion & management》 |2022年第12期|116435.1-116435.14|共14页
作者
Omar A. Mawlid; Hosam H. Abdelhady; Mohamed S. El-Deab;
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作者单位

Chemistry Department, Faculty of Science, Cairo University, Cairo, Egypt;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Renewable energy; Transesterification; Magnetic nanocatalyst; Ferrites; Heterogeneous catalysis; Oxides;

Boosted biodiesel production from waste cooking oil using novel SrO/ MgFe_2O_4 magnetic nanocatalyst at low temperature: Optimization process

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