Transesterification of rice bran oil to biodiesel using mesoporous NaBeta zeolite-supported molybdenum catalyst: Experimental and kinetic studies

Chen, Chao; Cai, Lei; Zhang, Lei; Fu, Wenqian; Hong, Yanping; Gao, Xiaofeng; Jiang, Yan; Li, Liang; Yan, Xianzai; Wu, Guoqiang

doi:10.1016/j.cej.2019.122839

Cited by 64 publications

(23 citation statements)

References 65 publications

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“…This is because it contains a number of CC bonds that easily react with oxygen. Biodiesel, with a high proportion of saturated fatty acids, exhibits better oxidation stability than biodiesel rich in esters of unsaturated fatty acids 6‐8 . The average induction time period of an oxidation reaction in biodiesel is around 0.2 to 9.4 hours by Rancimat test 9 .…”

Section: Introductionmentioning

confidence: 99%

“…Biodiesel, with a high proportion of saturated fatty acids, exhibits better oxidation stability than biodiesel rich in esters of unsaturated fatty acids. [6][7][8] The average induction time period of an oxidation reaction in biodiesel is around 0.2 to 9.4 hours by Rancimat test. 9 The oxidation stability property influences the storage time, resulting in the change of fuel property, such as viscosity and acidity, or gums, and sediment formation because of oxidation products.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

et al. 2020

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Summary Oxidation stability is an important biodiesel property. One of the methods to improve oxidation stability is partially hydrogenated fatty acid methyl esters (H‐FAME). The present research studied the novel production technique of H‐FAME derived from soybean FAME using non‐thermal parallel‐plate dielectric barrier discharge (DBD) plasma. This green hydrogenation method does not require a catalyst and can be performed under atmospheric pressure and at room temperature. The reaction using DBD plasma could effectively initiate the hydrogenation reaction, and the results showed similar performance to catalysis technique. The optimized process parameters for 35 mL of FAME were 25% H2, 5.5 hours of reaction time, and ambient temperature. This condition exhibited the highest conversion of polyunsaturated FAMEs (C18:2 and C18:3) and the highest yield of C18:1. DBD plasma hydrogenation resulted in the reduction of iodine value from 128 to 67.4. The oxidation stability was enhanced from 2.13 to 10 hours while the cloud point increased from −1°C to 11°C (still within the ASTM D6751 standard). This plasma process is a new alternative and eco‐friendly method for H‐FAME production.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

et al. 2020

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“…It is worth noting that so high TG conversion and FAME yield values obtained for support can be easily explained by the composition of the material. The used catalyst carrier contains in its composition Ca 2+ , Mg 2+ , K + , Na + , and Fe 3+ ions which are widely used as a heterogenous catalysts component in transesterification reaction [ 31 , 32 , 33 , 34 , 35 , 36 ]. These elements are active centers in the studied reaction.…”

Section: Resultsmentioning

confidence: 99%

Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

et al. 2020

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Biodiesel production from rapeseed oil and methanol via transesterification reaction facilitated by various monometallic catalyst supported on natural zeolite (NZ) was investigated. The physicochemical characteristics of the synthesized catalysts were studied by X-ray diffraction (XRD), Brunauer–Emmett–Teller method (BET), temperature-programmed-reduction in hydrogen (H2-TPR), temperature-programmed-desorption of ammonia (NH3-TPD), Scanning Electron Microscope equipped with EDX detector (SEM-EDS), and X-ray photoelectron spectroscopy (XPS) methods. The highest activity and methyl ester yields were obtained for the Pt/NZ catalyst. This catalyst showed the highest triglycerides conversion of 98.9% and fatty acids methyl esters yields of 94.6%. The activity results also confirmed the high activity of the carrier material (NZ) itself in the investigated reaction. Support material exhibited 90.5% of TG conversion and the Fatty Acid Methyl Esters yield (FAME) of 67.2%. Introduction of noble metals improves the TG conversion and FAME yield values. Increasing of the metal loading from 0.5 to 2 wt.% improves the reactivity properties of the investigated catalysts.

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“…It has adsorptive and catalytic capacities, thus may be employed as a catalyst for biodiesel production. Very few researchers investigated clay catalysts for transesterification reaction [17][18][19][20] and obtained higher biodiesel yields as compared to those attained by conventional techniques under the same conditions. This study focuses on optimization of the reaction conditions for production of fatty acid methyl ester (FAME) via methanolysis of GSO catalyzed by alkaline-activated clay (NaOH/clay).…”

Section: Introductionmentioning

confidence: 99%

Heterogeneously Catalyzed Methanolysis of Gmelina Seed Oil to Biodiesel

et al. 2020

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The heterogeneous catalysis of transesterification of gmelina seed oil to biodiesel is evaluated. The oil was extracted from the seeds with n‐hexane by solvent extraction and characterized to determine its physiochemical properties. Response surface methodology was applied to optimize the effect of process variables on the biodiesel yield. The base‐activated clay catalyst performed as montmorillonite clay with the characteristic property of a Brønsted acid. It has an improved surface area after activation that enhanced its catalytic activity on transesterification reaction. Under optimal conditions, the biodiesel yield was 70.1 %, thus demonstrating that the model predicted well the biodiesel production.

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Transesterification of rice bran oil to biodiesel using mesoporous NaBeta zeolite-supported molybdenum catalyst: Experimental and kinetic studies

Cited by 64 publications

References 65 publications

Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

Improvement of oxidation stability of fatty acid methyl esters derived from soybean oil via partial hydrogenation using dielectric barrier discharge plasma

Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

Heterogeneously Catalyzed Methanolysis of Gmelina Seed Oil to Biodiesel

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