Biodiesel fuel production with solid amorphous-zirconia catalysis in fixed bed reactor

Furuta, Satoshi; Matsuhashi, Hiromi; Arata, Kazushi

doi:10.1016/j.biombioe.2005.10.010

Cited by 183 publications

(84 citation statements)

References 10 publications

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“…In many production processes for biodiesel, alkaline catalysts are typically used. The commonly used homogenous base catalysts are potassium hydroxide (KOH), sodium hydroxide (NaOH), and the corresponding potassium or sodium methoxide [7,8]. However, the use of homogeneous alkaline catalysts in the production of biodiesel requires acid neutralization and a washing step to remove the catalyst and salt from the ester phase, which generates a large amount of wastewater.…”

Section: Introductionmentioning

confidence: 99%

Continuous Process for Biodiesel Production in Packed Bed Reactor from Waste Frying Oil Using Potassium Hydroxide Supported on Jatropha curcas Fruit Shell as Solid Catalyst

et al. 2012

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Abstract:The transesterification of waste frying oil (WFO) with methanol in the presence of potassium hydroxide catalyst supported on Jatropha curcas fruit shell activated carbon (KOH/JS) was studied. The catalyst systems were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and the Brunauer-Emmett-Teller (BET) method. The effects of reaction variables such as residence time, reaction temperature, methanol/oil molar ratio and catalyst bed height in packed bed reactor (PBR) on the yield of biodiesel were investigated. SEM images showed that KOH was well distributed on the catalyst support. The optimum conditions for achieving the conversion yield of 86.7% consisted of a residence time of 2 h, reaction temperature of 60 °C, methanol/oil molar ratio of 16 and catalyst bed height of 250 mm. KOH/JS could be used repeatedly five times without any activation treatment, and no significant activity loss was observed. The results confirmed that KOH/JS catalyst had a great potential to be used for industrial application in the transesterification of WFO. The fuel properties of biodiesel were also determined.

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Section: Introductionmentioning

confidence: 99%

Continuous Process for Biodiesel Production in Packed Bed Reactor from Waste Frying Oil Using Potassium Hydroxide Supported on Jatropha curcas Fruit Shell as Solid Catalyst

et al. 2012

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“…The WCOME s yield reached 92. 3 1.12 at 8 h reaction, the catalyst amount 6 wt/wt, and molar ratio of methanol to WCO 25:1 and a temperature of 200 . The catalyst used in this study was found to reduce the high content of FFAs to about 0.620 , signifying that, the catalyst is highly effective for simultaneous esterification and transesterification reaction.…”

Section: Resultsmentioning

confidence: 99%

“…As a result the experimental yield of methyl esters obtained from tungstated molybdena and ferric-manganese doped tungstated molybdena was found to be 65.0 0.17 and 92. 3 1.12, respectively. In addition, Table 1 shows that ferric-manganese doped tungstated molybdena gives highest ester yield as well as specific surface area and density of active centres which indicates that the ferric and manganese dopants increase the surface area, acidity and the catalytic activity of ferric-manganese doped tungstated molybdena relative to that of tungstated molybdena catalyst.…”

Section: Impact Of Methyl Alcohol/ Spent Cooking Feedstockmentioning

confidence: 94%

“…A chief goal of this work is to evaluate catalytic performance of ferric-manganese doped tungstated/molybdena solid acid catalyst for biodiesel-forming type reactions. The FMWMo is synthesized through impregnation technique and categorized utilizing XRD, Raman spectroscopy, TPD-NH 3 , TGA, BET, XRF and TEM. In addition, the impact of methanolysis process variables has been also assessed.…”

Section: Introductionmentioning

confidence: 99%

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Biodiesel Synthesis Catalyzed by Transition Metal Oxides: Ferric-Manganese Doped Tungstated/Molybdena Nanoparticle Catalyst

2015

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“…Solid catalysts have several advantages, such as being easy to recover from the mixture [12], high purity of glycerol as byproduct [13], cheaper and more environmentally friendly compared to conventional catalysts. Alkalineearth metals, for example KI/Al 2 O 3 [14], NaOH/γ-Al 2 O 3 [15], Mg-Al hydrotalcite [16] have been studied as heterogeneous catalyst for biodiesel production.…”

Section: B Introductionmentioning

confidence: 99%

Kinetics of Palm Oil Transesterification Using Double Promoted Catalyst CaO/KI/ γ - Al 2 O 3

Asri¹,

Budikarjono²,

Suprapto³

et al. 2015

J. Eng. Technol. Sci.

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Abstract. Double promoted catalyst (CaO/KI/γ-Al 2 O 3 ) was used as the catalyst for transesterification of palm oil into biodiesel. The experiment was carried out in a batch reactor consisting of a three-neck glass flask (500 ml capacity) equipped with a reflux condenser, thermometer and magnetic stirrer. Kinetic study was carried out with methanol under reflux conditions at different temperatures (35-75°C) and different times of reaction (1-7 hours). The effects of temperature and time of the reaction on the conversion of palm oil into biodiesel and reaction rate constants were investigated. The results showed that the conversion and rate constants of reaction increased with the increasing of the reaction temperature. The highest conversion of 97% was obtained at 65°C and 5 hours of reaction time. Meanwhile, the activation energy and the frequency factor were 15.47 kJ/mol and 1.22.10 2 , respectively.

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Biodiesel fuel production with solid amorphous-zirconia catalysis in fixed bed reactor

Cited by 183 publications

References 10 publications

Continuous Process for Biodiesel Production in Packed Bed Reactor from Waste Frying Oil Using Potassium Hydroxide Supported on Jatropha curcas Fruit Shell as Solid Catalyst

Continuous Process for Biodiesel Production in Packed Bed Reactor from Waste Frying Oil Using Potassium Hydroxide Supported on Jatropha curcas Fruit Shell as Solid Catalyst

Biodiesel Synthesis Catalyzed by Transition Metal Oxides: Ferric-Manganese Doped Tungstated/Molybdena Nanoparticle Catalyst

Kinetics of Palm Oil Transesterification Using Double Promoted Catalyst CaO/KI/ γ - Al 2 O 3

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