Magnetic and reusable MgO/MgFe 2 O 4 nanocatalyst for biodiesel production from sunflower oil: Influence of fuel ratio in combustion synthesis on catalytic properties and performance

Alaei, Shervin; Haghighi, Mohammad; Toghiani, Javad; Vahid, Behgam Rahmani

doi:10.1016/j.indcrop.2018.03.015

Cited by 148 publications

(32 citation statements)

References 56 publications

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“…In addition, biodiesel presents a lower emission of particulate matter and NOx. These environmental benefits are due to the absence of sulfur compounds and aromatic residues in the oils (Alaei et al 2018;Shan et al 2018). Biodiesel not only has environmental advantages, but also has properties that make it a good fuel, such as its high ignition point, excellent lubricity and miscibility with petroleum fuels, what allows it to produce different blends (Knothe and Razón 2017).…”

Section: Introductionmentioning

confidence: 99%

A sustainable process for biodiesel production using Zn/Mg oxidic species as active, selective and reusable heterogeneous catalysts

Navas

Ruggera

Lick

et al. 2020

Bioresour. Bioprocess.

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This paper describes the preparation and characterization of MgO and ZnO-based catalysts, pure and mixed in different proportions, supported on γ-Al 2 O 3. Their catalytic performance was studied in the transesterification of soybean oil and castor oil with methanol and butanol, attempting to produce biodiesel. XRD (X-ray diffraction), SEM-EDS (scanning electron microscopy-energy dispersive X-ray spectroscopy), CO 2-adsorption and N 2-adsorption allowed characterizing the prepared catalysts. The characterization results were in all cases consistent with mesoporous solids with high specific surface area. All the catalysts exhibited good results, especially in the transesterification of castor oil using butanol. For this reaction, the reuse was tested, maintaining high FABE (fatty acid butyl esters) yields after four cycles. This good performance can be attributed to the basic properties of the Mg species, and simultaneously, to the amphoteric properties of ZnO, which allow both triglycerides and free fatty acids to be converted into esters. Using these catalysts, it is possible to obtain second-generation biodiesel, employing castor oil, a raw material that does not compete with the food industry. In addition, butanol can be produced from renewable biomass.

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Section: Introductionmentioning

confidence: 99%

A sustainable process for biodiesel production using Zn/Mg oxidic species as active, selective and reusable heterogeneous catalysts

Navas

Ruggera

Lick

et al. 2020

Bioresour. Bioprocess.

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“…In many cases, the biodiesel is blended with fossil diesel in different ratios in order to utilize its benefits . Therefore, the investigators try to develop the inexpensive and safe methods of biodiesel production . Considering that the reactants of this process are oil and methanol, using the waste materials such as waste oil could reduce the overall costs .…”

Section: Introductionmentioning

confidence: 99%

“…There are many challenges in designing the heterogeneous biodiesel catalysts such as diffusion resistance of great triglyceride molecules, specific surface area (SSA), and catalyst deactivation . Some of these problems could be solved by employing an appropriate catalytic support . MCM‐41, with a significant surface area and mesoporous structure, is a good candidate for support that could be used in several cycles of reaction because of its thermal and mechanical stability .…”

Section: Introductionmentioning

confidence: 99%

“…12 Therefore, the investigators try to develop the inexpensive and safe methods of biodiesel production. [13][14][15] Considering that the reactants of this process are oil and methanol, using the waste materials such as waste oil could reduce the overall costs. 16,17 According to the high free fatty acid (FFA) amounts of waste oil, the acidic catalysts must be utilized to reduce FFA amounts, proceed the esterification and transesterification reactions simultaneously, and prevent from saponification.…”

Section: Introductionmentioning

confidence: 99%

“…[23][24][25] Some of these problems could be solved by employing an appropriate catalytic support. 13,26,27 MCM-41, with a significant surface area and mesoporous structure, is a good candidate for support that could be used in several cycles of reaction because of its thermal and mechanical stability. 28,29 Incorporation of some specific elements into the structure of MCM-41 can influence its acidity, pore size, hydrophobicity, and stability.…”

Section: Introductionmentioning

confidence: 99%

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Structural/texture evolution of CaO/MCM‐41 nanocatalyst by doping various amounts of cerium for active and stable catalyst: Biodiesel production from waste vegetable cooking oil

2019

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Summary In present work, the aim of producing biodiesel from waste cooking oil was pursued by doping the cerium element into the MCM‐41 framework as catalyst with various Si/Ce molar ratio (5, 10, 25, 50, and Ce = 0). The catalytic performance and stability improved by employing the ultrasound irradiation in active phase loading step of catalyst preparation. The physicochemical characteristics of synthesized samples were investigated using various techniques as follows: Brunauer‐Emmett‐Teller (BET), X‐ray powder diffraction (XRD), Fourier transfer infrared (FTIR), energy‐dispersive X‐ray spectroscopy (EDX), transmission electron microscopy (TEM), and field emission scanning electron microscope (FESEM). The XRD patterns along with the results of FTIR and BET analysis revealed the MCM‐41 framework destruction while increasing the Ce content. The FESEM images of the nanocatalysts illustrated a well distribution and uniform morphology for the Ca/CeM (Si/Ce = 25). The particle size and size distribution of the Ca/CeM (Si/Ce = 25) were subsequently determined by TEM and FESEM images. The activity of fabricated nanocatalysts was evaluated by measuring the free acid methyl ester (FAME) content of produced biodiesel. The tests were carried out at constant operational conditions: T = 60°C, catalyst loading = 5 wt%, methanol/oil molar ratio = 9, and 6‐hour reaction time. A superior activity was observed for Ca/CeM (Si/Ce = 25) among other nanocatalysts with 96.8% conversion of triglycerides to biodiesel. The mentioned sample was utilized in five reaction cycles, and at the end of the fifth cycle, the conversion reached to 91.5% which demonstrated its significant stability.

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Nanocatalysts and Biofuels

Desikan

Thangavelu

Prabha

et al. 2020

Green Synthesis of Nanomaterials for Bioenergy Applications

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Magnetic and reusable MgO/MgFe 2 O 4 nanocatalyst for biodiesel production from sunflower oil: Influence of fuel ratio in combustion synthesis on catalytic properties and performance

Cited by 148 publications

References 56 publications

A sustainable process for biodiesel production using Zn/Mg oxidic species as active, selective and reusable heterogeneous catalysts

A sustainable process for biodiesel production using Zn/Mg oxidic species as active, selective and reusable heterogeneous catalysts

Structural/texture evolution of CaO/MCM‐41 nanocatalyst by doping various amounts of cerium for active and stable catalyst: Biodiesel production from waste vegetable cooking oil

Nanocatalysts and Biofuels

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