Biodiesel production from one-step heterogeneous catalyzed process of Castor oil and Jatropha oil using novel sulphonated phenyl silane montmorillonite catalyst

Negm, Nabel A.; Sayed, G. H.; Yehia, F.Z.; Habib, Onsy I.; Mohamed, Eslam A.

doi:10.1016/j.molliq.2017.03.043

Cited by 87 publications

(42 citation statements)

References 54 publications

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“…and 24% for Mg and Zn supported oxides, respectively, were obtained. The conversion result obtained with the MgO/γ-Al 2 O 3 catalyst is in good agreement with the data published by Negm et al (Negm et al, 2017) who, under similar reaction conditions (castor oil to methanol ratio 1:6, 5 wt% catalyst relative to oil) obtained a 46% conversion but using a rather more sophisticated catalyst than the one used in the present work. On the other hand, the conversion achieved with the ZnO/γ-Al 2 O 3 catalyst (24%) is also in line with that reported in the literature.…”

Section: Transesterification Of Soybean Oil and Castor Oil With Methanolsupporting

confidence: 92%

Transesterification of soybean and castor oil with methanol and butanol using heterogeneous basic catalysts to obtain biodiesel

Navas

Lick

Bolla

et al. 2018

Chemical Engineering Science

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This paper focuses on the preparation and characterization of CaO, MgO and ZnO, both bulk and supported on -Al 2 O 3 and their catalytic activity in the transesterification of soybean oil and castor oil with methanol and butanol in order to produce biodiesel. XRD, SEM, CO 2-adsorption followed by TGA and N 2 adsorption have been employed to characterize the prepared catalysts. In supported catalysts, the presence of -Al 2 O 3 improves alcohol dissociation on the superficial basic sites. The first step of the reaction mechanism is then favored (hydrogen abstraction). In the transesterification of castor oil with butanol, MgO/-Al 2 O 3 and ZnO/-Al 2 O 3 catalysts showed high yields to FABE (Fatty Acid Butyl Ester) (97% and 85%, respectively). These last catalysts constitute an efficient alternative for obtaining second-generation biodiesel, taking into account that castor oil is a nonedible source and butanol is an alcohol that can be obtained from biomass.

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Section: Transesterification Of Soybean Oil and Castor Oil With Methanolsupporting

confidence: 92%

Transesterification of soybean and castor oil with methanol and butanol using heterogeneous basic catalysts to obtain biodiesel

Navas

Lick

Bolla

et al. 2018

Chemical Engineering Science

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“…This proves that TMES, DMDES and MTES were successfully grafted onto silica surface. The bands at 3100 cm −1 and 1429 cm −1 presented in Fig.9 (c) and (d) result from the aromatic ring of PMDES [26,27]. The presence of the vinyl group can be proven by the absorption band at 1593 cm −1 [26].…”

Section: ) Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 82%

Silica Surface-Modification for Tailoring the Charge Trapping Properties of PP/POE Based Dielectric Nanocomposites for HVDC Cable Application

Rytöluoto

Anyszka

et al. 2020

IEEE Access

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This paper focuses on novel insulation polypropylene/poly(ethylene-co-octene) (PP/POE) nanocomposites for High Voltage Direct Current (HVDC) cable application. The composites contain silica modified by a solvent-free method using silanes differing in polarity and functional moieties. Thermogravimetric Analysis and Fourier Transform Infrared Spectroscopy showed that the solvent-free method is an effective way to modify silica by silanes. Silica/PP/POE nanocomposites were prepared in a mini twin-screw compounder, and the effect of silica on crystallization, dispersibility and dielectric properties of the samples was investigated. Differential Scanning Calorimetry results showed that the unmodified and modified silicas acted as nucleation agents and increased the onset of the crystallization temperature of the polymeric matrix. Scanning Electron Microscopy images showed that the silica is mostly located in the PP phase matrix. For the PP/POE nanocomposites filled with unpolar silica, a higher trap density (measured by Thermally Stimulated Depolarization Current, TSDC) was found; this might be caused by the larger interfacial area due to a better dispersion of the unpolar silica in the polymeric matrix. Polar silicas introduce deeper traps than the unpolar ones, which is most likely due to the hetero-atom introduction. Nitrogen atoms were found to have the strongest effect on the charge trapping properties. According to these results, amine-modified silica is a promising candidate for PP/POE nanocomposites for HVDC cable applications.

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“…The characteristics of biodiesel play a key role in the engine performance and stability. The various crucial properties of the obtained biodiesel were evaluated and compared with American Society for Testing and Materials (ASTM) and European Standard (EN) standards as presented in Table . Similarly, the GC‐MS spectrum of the synthesized biodiesel and the major fatty acid esters are given in Figure and Table , respectively.…”

Section: Resultsmentioning

confidence: 99%

A green route for biodiesel production from waste cooking oil over base heterogeneous catalyst

et al. 2019

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Summary The present work describes the synthesis of porous BaSnO3 by eco‐friendly sol‐gel method using albumin as a bio‐template agent, and its application as a solid base catalyst in biodiesel production from waste cooking oil. The physico‐chemical, textural, and morphological properties of the catalyst were evaluated by X‐ray diffraction (XRD), Brunauer‐Emmett‐Teller (BET), field emission scanning electron microscopy (FESEM), and temperature programmed desorption (TPD)–CO2 techniques. The synthesized catalyst showed considerable stability, efficient catalytic activity, and negligible metal leaching. The satisfactory performance of the catalyst could be ascribed to the presence of basic sites of different strength on the surface of the catalyst. The catalyst produced maximum biodiesel yield of 96% at optimum reaction conditions of 90°C reaction temperature, methanol to oil molar ratio of 10:1, catalyst dosage of 6 wt%, and reaction time of 2 hours. Moreover, the catalyst showed substantial reusability up to five reaction cycles without any considerable decrease in transesterification activity.

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Biodiesel production from one-step heterogeneous catalyzed process of Castor oil and Jatropha oil using novel sulphonated phenyl silane montmorillonite catalyst

Cited by 87 publications

References 54 publications

Transesterification of soybean and castor oil with methanol and butanol using heterogeneous basic catalysts to obtain biodiesel

Transesterification of soybean and castor oil with methanol and butanol using heterogeneous basic catalysts to obtain biodiesel

Silica Surface-Modification for Tailoring the Charge Trapping Properties of PP/POE Based Dielectric Nanocomposites for HVDC Cable Application

A green route for biodiesel production from waste cooking oil over base heterogeneous catalyst

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