Mesoporous Al–Mo Oxides as an Effective and Stable Catalyst for the Synthesis of Biodiesel from the Esterification of Free-Fatty Acids in Non-edible Oils

Zhang, Qiuyun; Wei, Fangfang; Ma, Pengtao; Zhang, Yutao; Wei, Fuhua; Chen, Hongliang

doi:10.1007/s12649-017-9865-5

Cited by 39 publications

(19 citation statements)

References 33 publications

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“…Selecting these types of vegetable sources allows, in turn, to reduce biodiesel production costs (Zhang et al 2018a). Among the options already known and studied are Jatropha curcas crude oil, Silybum marianum oil, Firmiana platanifolia L.f. oil and Euphorbia lathyris crude oil (Adeniyi et al 2019;Zhang et al 2018b, Pan et al 2018. Castor oil is an excellent alternative (Elango et al 2019).…”

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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“…The use of heterogeneous catalyst can solve some of these problems through the ease of product separation and good catalyst recyclability 10 . To date, various heterogeneous acid catalysts have been reported for biodiesel production, such as metal complexes 11 13 , zeolites 14 , heteropolyacids 15 , ion exchange resins 16,17 and mesoporous solid acid 18,19 . Nevertheless, metal complex catalysts with complicate preparation process and low activity limit their applications.…”

mentioning

confidence: 99%

Facile and Low-cost Synthesis of Mesoporous Ti–Mo Bi-metal Oxide Catalysts for Biodiesel Production from Esterification of Free Fatty Acids in <i>Jatropha curcas</i> Crude Oil

Zhang

Yang

2018

J. Oleo Sci.

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Mesoporous Ti-Mo bi-metal oxides with various titanium-molybdenum ratios were successfully fabricated via a facile approach by using stearic acid as a low-cost template agent. thermal gravity (TG) /differential scanning calorimetry (DSC) analysis, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, nitrogen adsorption-desorption isotherm, NH temperature-programmed desorption (NH-TPD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) measurements indicated these materials possessing mesoporous structure, sufficient pore size and high acid intensity. The catalytic performance of prepared catalysts was evaluated by esterification of free fatty acids in Jatropha curcas crude oil (JCCO) with methanol. The effects of various parameters on FFA conversion were investigated. The esterification conversion of 87.8% was achieved under the condition of 180°C, 2 h, methanol to JCCO molar ratio of 20:1 and 3.0 wt.% catalyst (relative to the weight of JCCO). The mesoporous catalysts were found to exhibit high activities toward the simultaneous esterification and transesterification of JCCO. Furthermore, the catalyst could be recovered with a good reusability.

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“…Modi ed aluminum-molybdenum mixed oxides were prepared using stearic acid as a modi er by following the previous methods by our group [22,23], and the catalyst was denoted as S-AlMo. For comparison, stearic acid-modi ed aluminum oxide was also prepared by the same method, and it was denoted as S-Al.…”

Section: Preparation Of Aluminum-molybdenum Mixed Oxidesmentioning

confidence: 99%

Catalytic Transfer of Fructose to 5-Hydroxymethylfurfural over Bimetal Oxide Catalysts

Zhang

Liu

Yang

et al. 2019

International Journal of Chemical Engineering

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Direct conversion of fructose into 5-hydroxymethylfurfural (HMF) is achieved by using modified aluminum-molybdenum mixed oxide (S-AlMo) as solid acid catalysts. The synthesized catalyst was characterized by powder XRD, nitrogen adsorption-desorption isotherm, NH3-TPD, and SEM. As a result, the presence of strong acidity, mesostructures, and high surface area in the S-AlMo catalyst was confirmed by nitrogen adsorption-desorption isotherm and NH3-TPD studies. A study by optimizing the reaction conditions such as catalyst dosage, reaction temperature, and time has been performed. Under the optimal reaction conditions, HMF was obtained in a high yield of 49.8% by the dehydration of fructose. Moreover, the generality of the catalyst is also demonstrated by glucose and sucrose with moderate yields to HMF (24.9% from glucose; 27.6% from sucrose) again under mild conditions. After the reaction, the S-AlMo catalyst can be easily recovered and reused four times without significant loss of its catalytic activity.

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Mesoporous Al–Mo Oxides as an Effective and Stable Catalyst for the Synthesis of Biodiesel from the Esterification of Free-Fatty Acids in Non-edible Oils

Cited by 39 publications

References 33 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

Facile and Low-cost Synthesis of Mesoporous Ti–Mo Bi-metal Oxide Catalysts for Biodiesel Production from Esterification of Free Fatty Acids in <i>Jatropha curcas</i> Crude Oil

Catalytic Transfer of Fructose to 5-Hydroxymethylfurfural over Bimetal Oxide Catalysts

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