Investigation of biodiesel production by HUSY and Ce/HUSY zeolites: Influence of structural and acidity parameters

Borges, Luciana Diniz; Moura, Nayara N.; Costa, Andréia Alves; Braga, Patricia Regina Sobral; Dias, José A.; Dias, Sílvia C.L.; Macedo, Julio L. de; Ghesti, Grace Ferreira

doi:10.1016/j.apcata.2012.10.009

Cited by 40 publications

(16 citation statements)

References 34 publications

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“…It was stated that though the incorporation of tungsten species blocked the acid sites of zeolite, the new acid sites were generated from the interaction of tungsten species with Brønsted and silanol groups inside the zeolite pores as well as from the supported WO 3 moieties on the external zeolite surface. The possibility of introduction of a hetero species in order to increase the overall catalytic stability of zeolite with an adjustment of reducing the number of acid sites was also proposed by Borges et al [142]. The reported results suggested that the cerium doping on the HUSY zeolite surface increased the stability and activity of the catalyst.…”

Section: Sourcementioning

confidence: 74%

“…The reported results suggested that the cerium doping on the HUSY zeolite surface increased the stability and activity of the catalyst. After cerium doping, HUSY zeolite catalyst assisted 99.80% soybean oil conversion after 1440 min of ethanolysis reaction performed at 200 1C using ethanol-to-oil molar ratio of 30:1 and 0.001 mol catalyst [142]. Vieira et al [143] reported that sulfated lanthanum oxide impregnated HZSM-5 zeolite catalyst assisted complete conversion of oleic acid to biodiesel.…”

Section: Sourcementioning

confidence: 98%

“…Cerveró et al [158] used Novozym-435 (macroporous resins immobilized form of lipase Candida antárctica) for a step-wise biodiesel production from soybean oil. It was reported Table 8 Some heterogeneous acid catalysts for alcoholysis reaction [135][136][137][138][140][141][142][143]145,146,148,[150][151][152]. that the degree of deactivation of catalyst was inversely proportional to the number of carbon atoms in the linear lower alcohols.…”

Section: Biocatalysts For Alcoholysis Reactionmentioning

confidence: 99%

See 2 more Smart Citations

A review on recent advancement in catalytic materials for biodiesel production

Avhad

Marchetti

2015

Renewable and Sustainable Energy Reviews

324

133

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Section: Sourcementioning

confidence: 74%

Section: Sourcementioning

confidence: 98%

Section: Biocatalysts For Alcoholysis Reactionmentioning

confidence: 99%

See 1 more Smart Citation

A review on recent advancement in catalytic materials for biodiesel production

Avhad

Marchetti

2015

Renewable and Sustainable Energy Reviews

324

133

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“…The incorporation of cerium on HUSY zeoliteh as been proposed as as olution to reduce the number of acid sites on both the external and micropore surface area of the zeolite, increasingt he reusability. [70] Ce/HUSY was prepared by calcination of NH 4 USY,f ollowed by impregnation with cerium nitrate solution.B efore utilization, the catalyst was activated through calcination at 573 Kf or 4h.T he transesterification reaction was conducted at 473 Kw ith an ethanol/soybeano il molarr atio of 30:1. Ce/HUSY showeda99.5 %c onversion after the third cycle, asc ompared to 96.4 %c onversion of HUSY.…”

Section: Acid Nanocatalystsmentioning

confidence: 99%

Advances in Nanocatalyst Design for Biofuel Production

2018

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The exploitation of nanocatalysts, at the boundary between homogeneous and heterogeneous catalysis, offers new efficient ways to produce renewable biofuels in environmentally friendly conditions. Specifically, biodiesel and high density fuels have been chosen as major topics of research for the design of catalytic nanomaterials. As solid‐state catalysts, they are recyclable, and their nanometric particle size enables high activities that approach those of homogeneous catalysts. In addition, they offer novel and unique catalytic behaviors not accessible to solids above the nanometer range. Furthermore, the use of magnetically active materials has led to the development of nanocatalysts easily recoverable through the application of magnetic fields. In this Minireview, the latest achievements in the production of advanced biofuels using stable, highly active, cheap and reusable nanocatalysts are described.

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“…The solid base catalyst includes CaO-based oxides [1][2][3][4], zinc oxide-based catalysts [5][6][7][8][9][10], and zeolites and modified zeolites [11][12][13][14][15][16][17]. Heterogeneous solid acid catalysts have been used as an alternative to basic and enzyme catalysts, since they can be used in both transesterification and esterification reactions [18].…”

Section: Introductionmentioning

confidence: 99%

Active Acid Catalyst of Sulphated Zinc Oxide for Transesterification of Soybean Oil with Methanol to Biodiesel

Istadi

Anggoro

Buchori

et al. 2015

Procedia Environmental Sciences

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Active solid acid catalysts of sulphated zinc oxide (SO 4 2--ZnO and SO 4 2-/ZnO) were prepared and characterized. The solid acid catalysts were investigated for their performance on transesterification of soybean oil with methanol to produce biodiesel. The SO 4 2--ZnO and SO 4 2-/ZnO catalysts were prepared by coprecipitation and impregnation respectively to compare their performance for biodiesel production. The catalysts were characterized by X-ray Diffraction (XRD) and Fourier Transform Infra Red (FT-IR), while the fatty acid methyl ester (FAME) component in biodiesel product was identified by Gas Chromatography -Mass Spectrometer (GC-MS) and FT-IR. The SO 4 2--ZnO catalyst, prepared by coprecipitation, showed better performance for the transesterification process than the SO 4 2-/ZnO catalyst, prepared by wet impregnation. The trend of performance of both catalyst was due to effect of sulfonate incorporation into the zinc oxide structure to form active acid sites. From the catalyst testing on transesterification of soybean oil with methanol at mild conditions (temperature of 65 o C, methanol to oil mole ratio of 6, and 4 wt% of catalyst loading), the SO 4 2--ZnO catalyst exhibited promising FAME yield of 80.19% at 4 h reaction time. Therefore, the SO 4 2--ZnO catalyst showed potential as a catalyst for transesterification of soybean oil to produce biodiesel.

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Investigation of biodiesel production by HUSY and Ce/HUSY zeolites: Influence of structural and acidity parameters

Cited by 40 publications

References 34 publications

A review on recent advancement in catalytic materials for biodiesel production

A review on recent advancement in catalytic materials for biodiesel production

Advances in Nanocatalyst Design for Biofuel Production

Active Acid Catalyst of Sulphated Zinc Oxide for Transesterification of Soybean Oil with Methanol to Biodiesel

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