This researchinvestigatedtheproductionofbiodieselfromsoy-

bean oil(transesterification process)usingpurecalciumoxideand

calcium oxideobtainedfromeggshellasheterogeneouscatalysts.

Uncalcinedeggshellandcalcinedeggshellcatalystsproducedwere

analysedusingXRFandXRDspectrometers.Theprocessingpara-

meters consideredduringthetransesterification ofthesoybean

weremethanol/oilmoleratio,catalystconcentrationandreaction

time andtheireffectsonbiodieselyieldwereevaluated.Reaction

temperatureof60 °C andstirringrateof450rpm(revolutionper

minute) werekeptconstant.Asaresultofcalcination,XRFanalysis

revealedanincreaseinCaOpercentagecompositionofeggshell

catalystfrom96%to97%.Also,thebiodieselyieldsobtained

revealedsimilarperformancepatternsforboththecalcinedegg-

shell catalystandthepureCaOcatalys

Ayoola, A. A.

Babalola, Rasheed

James, Ayodele M.

Ojewumi, M. E.

Data in Brief

This research investigated the production of biodiesel from soybean oil (transesterification process) using pure calcium oxide and calcium oxide obtained from eggshell as heterogeneous catalysts. Uncalcined eggshell and calcined eggshell catalysts produced were analysed using XRF and XRD spectrometers. The processing parameters considered during the transesterification of the soybean were methanol/oil mole ratio, catalyst concentration and reaction time and their effects on biodiesel yield were evaluated. Reaction temperature of 60 °C and stirring rate of 450 rpm (revolution per minute) were kept constant. As a result of calcination, XRF analysis revealed an increase in CaO percentage composition of eggshell catalyst from 96% to 97%. Also, the biodiesel yields obtained revealed similar performance patterns for both the calcined eggshell catalyst and the pure CaO catalyst. Keywords: Biodiesel, Calcined eggshell, Catalys

Ayoola A. Ayodeji

Ojewumi E. Modupe

Babalola Rasheed

James M. Ayodele

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Data on CaO and eggshell catalysts used for biodiesel production

Covenant University Repository

Contents lists available at ScienceDirectData in BriefData in Brief 19 (2018) 1466–1473https://2352-34(http://cn CorrE-mjournal homepage: www.elsevier.com/locate/dibData ArticleData on CaO and eggshell catalysts used forbiodiesel productionAyoola A. Ayodeji a,n, Ojewumi E. Modupe a, Babalola Rasheed b,James M. Ayodele aa Chemical Engineering Department, Covenant University, Ota, Nigeriab Chemical/Petrochemical Engineering Department, Akwa Ibom State University, Nigeriaa r t i c l e i n f oArticle history:Received 11 April 2018Received in revised form30 May 2018Accepted 15 June 2018Available online 21 June 2018Keywords:BiodieselCalcined eggshellCatalystdoi.org/10.1016/j.dib.2018.06.02809/& 2018 The Authors. Published by Elsereativecommons.org/licenses/by/4.0/).esponding author.ail address: ayodeji.ayoola@covenantunivera b s t r a c tThis research investigated the production of biodiesel from soy-bean oil (transesterification process) using pure calcium oxide andcalcium oxide obtained from eggshell as heterogeneous catalysts.Uncalcined eggshell and calcined eggshell catalysts produced wereanalysed using XRF and XRD spectrometers. The processing para-meters considered during the transesterification of the soybeanwere methanol/oil mole ratio, catalyst concentration and reactiontime and their effects on biodiesel yield were evaluated. Reactiontemperature of 60 °C and stirring rate of 450 rpm (revolution perminute) were kept constant. As a result of calcination, XRF analysisrevealed an increase in CaO percentage composition of eggshellcatalyst from 96% to 97%. Also, the biodiesel yields obtainedrevealed similar performance patterns for both the calcined egg-shell catalyst and the pure CaO catalyst.& 2018 The Authors. Published by Elsevier Inc. This is an openaccess article under the CC BY license(http://creativecommons.org/licenses/by/4.0/).vier Inc. This is an open access article under the CC BY licensesity.edu.ng (A.A. Ayodeji).A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–1473 1467Specification TableMTHDEEDSubject area Materials Science Engineeringore specific subject area Renewable Energyype of data Table, imageow data was acquired The physico-chemical characteristics (chemical compositions) of theuncalcined eggshell, calcined eggshell and conventional CaO catalystswere determined using XRF and XRD spectroscopy principles. Withthe aid of Minitab software, data on the yields of biodiesel producedwas generated from the transesterification of soybean oil, using theconventional CaO and calcined eggshell catalysts. Data on biodieselproperties was obtained from the various simple laboratory testscarried out.ata format Raw, Analyzedxperimental factors Processing parameters considered in the transesterification of soy-bean oil were methanol/oil mole ratio, catalyst concentration andreaction time.xperimental features XRD and XRF analyses that were carried out involved investigating theelemental composition of the conventional CaO, uncalcined and cal-cined eggshell catalysts. During the transesterification process ofsoybean oil, methanol/oil mole ratio of 8–14, catalyst concentration of3–5wt/wt% and reaction time of 1–3 h were considered. Reactiontemperature of 60 °C and a stirring rate of 450 rpm were keptconstant.ata source location Chemical Engineering Department, Covenant University, Ota, Nigeriaand Metallurgical and Chemical Engineering Department, AmaduBello University, Zaria, Nigeria.ata accessibility Data are available within this articleDValue of the data The data on biodiesel production can be modelled to establish correlation between the operatingparameters and the yields of biodiesel. Egg shell data obtained shows that the calcined eggshell resulted in an increase in CaO content. The data obtained from the transesterification of soybean oil can be interpolated to determineoptimal conditions for the production of biodiesel. The data reveals that calcined eggshell catalyst is a potential source of CaO heterogeneous catalystthat can be used in the place of the conventional CaO catalyst during oil transesterification. Apositive step in overcoming environmental pollution associated with the wrong disposal of wasteegg shells.1. DataXRF analysis of CaO, uncalcined eggshell catalyst and calcined eggshell catalyst were presented inTable 1. XRD analysis of uncalcined eggshell (mostly CaCO3) and calcined eggshell catalyst (mostlyCaO) were presented in Fig. 1. Table 2 reveals the biodiesel yield data obtained from the transester-ification process, using the conventional CaO and calcined eggshell catalysts separately. The maineffects of the process variables during transesterification are shown in Fig. 2. The interactive effects ofthe process variables during transesterification, using the conventional CaO catalyst are shown inFig. 3, while the interactive effects of the process variables during transesterification, using eggshellcatalyst are shown in Fig. 4. Table 3 reveals the properties of the biodiesel produced.Table 1XRF spectrometry of the conventional CaO, Uncalcined and calcined eggshell catalysts.Compound Chemical Composition of the Catalyst (wt%)Conventional Uncalcined CalcinedCaO Eggshells EggshellsMgO – 0.531 0.544Al2O3 – 0.353 0.255SiO2 – 1.504 1.266P2O5 – 0.283 0.316SO3 – 0.559 0.123K2O – 0.118 0.103CaO 99.230 96.131 97.080Mn2O3 – 0.003 0.000Fe2O3 0.110 0.017 0.013SrO 0.120 0.305 0.263ZrO2 0.010 – –BaO 0.240 – –La2O3 0.130 – –CeO2 0.040 – –Pr2O3 0.040 – –Yb2O3 0.050 – –A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–147314682. Experimental design, materials and methodsResponse surface experimental design (Box-Behnken method, Minitab 17 software) was employedto investigate the effects of variation of methanol-oil mole ratio, catalyst concentration and reactiontime on biodiesel yield, using a similar approach published in Ref. [1]. Materials used includemethanol (99% purity, Qualikems, India), CaO (99.2%, Romil Ltd UK), waste eggshell and soybean oil.Equipment used include XRD and XRF spectrometers.Waste eggshells were first carefully washed in clean water to remove sand, tissue, and otherimpurity present. And then dried in oven (110 °C for 40min). The thin lining in the inner part of theshells were then carefully removed. The eggshells were then crushed (using electrical crushingmachine) and grinded into fine particles. Fine particle size of 80 mm was obtained through sieveanalysis. The powder obtained was calcined at temperature of 850 °C in an electric furnace for 4 h toensure complete transformation of eggshell rich in CaCO3 to catalyst rich in CaO [2–4].Determination of the elemental composition of uncalcined and calcined eggshell catalystsinvolved the use of XFD and XRF analysis. Phillips 1404 XRF Wavelength Disperse Spectrometercoupled with X-ray tube and a Rh anode (X-rays source) having HVPS 60 kV, 7.0mA, a LN2 cooled Si(Li) detector with a resolution of 131 eV at, Mn Kα (5.9 keV) X-ray and a 6-sample turret (that permitsthe mounting and analyzing of 6 samples at a time) was used. XRF spectrometer operation was basedon the emission of the excited elemental components of the given sample through the bombarding ofthe sample with high energy X-rays [1].For the uncalcined eggshell, main peak was observed at 2θ¼29.0°, other peaks were noticed at2θ¼36.0°, 39.0°, 44.0°, 47.0° and 48.0° (Fig. 1a). These peak values were the characteristics of CaCO3.And the peak for the calcined eggshell catalyst were measured at 2θ¼29.0°, 32.5°, 47.5° and 54.0°, themain peak values characteristics of calcium oxide (Fig. 1b).Soybean biodiesel production involved transesterification process as reported in Ref. [5]. Com-paratively, the result of biodiesel yield revealed similar behavioral pattern between the conventionalCaO and calcined eggshell catalysts. Properties of the soybean biodiesel produced were established,using simple laboratory equipment.Fig. 1. XRD spectrometry of: (a) uncalcined eggshell, (b) calcined eggshell catalyst.A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–1473 1469Table 2Experimental design and biodiesel yields obtained from the transesterification process.Rxn time Methanol/Oil Catalyst conc. % Biodiesel yield % Biodiesel yield(h) (mole ratio) (wt/wt%) (using CaO catalyst) (using eggshell catalyst)2 8 3 88 853 14 4 94 911 8 4 86 831 11 3 82 812 11 4 83 822 8 5 84 842 14 5 87 853 11 5 82 803 8 4 91 892 11 4 82 811 14 4 89 861 11 5 80 802 14 3 89 872 11 4 83 823 11 3 84 81Fig. 2. Main effects of the process variables (a) CaO catalyst and (b) eggshell catalyst.A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–14731470Fig. 3. Interactive effects of the process variables, using conventional CaO catalyst.A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–1473 1471Fig. 4. Interactive effects of the process variables, using eggshell catalyst.Table 3Properties of soybean biodiesel produced.Sample Density @ 25 °C (g/cm3)Pour Point(°C)Flash point(°C)Viscosity @ 40 °C(mm2/s)Water content(%)Acid value (mgKOH/g)Soybeanbiodiesel0.8900 2 148 4.32 0.005 0.040A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–14731472A.A. Ayodeji et al. / Data in Brief 19 (2018) 1466–1473 1473AcknowledgementThe authors would like to thank Covenant University Centre for Research Innovation and Dis-covery (CUCRID) Ota, Nigeria for its support in making the publication of this research possible.Transparency document. Supporting informationTransparency data associated with this article can be found in the online version at https://doi.org/10.1016/j.dib.2018.06.028.References[1] A.A. Ayoola, E.B. Igho, O.S.I. Fayomi, Data on calcium oxide and cow bone catalysts used for soybean biodiesel production,Data Brief 18 (2018) 512–517.[2] A.A. Ayoola, F.K. Hymore, C.A. Omonhinmin, V.E. Efeovbokhan, O.A. Ayeni, O.A. Olafadehan, Impacts analysis of emissionsfrom biodiesel and washing water, Ind. J. Environ. Prot. 36 (2) (2015) 156–168.[3] N.V. Empikul, P. Krasae, B. Puttasawat, B. Yoosuk, N. Chollacoop, K. Faungnawakij, Waste shells of mollusk and egg asbiodiesel production catalysts, Bioresour. Technol. 101 (2010) 3765–3767.[4] A.A. Ayoola, F.K. Hymore, M.A. Obande, I.N. Udeh, Optimization of experimental conditions for biodiesel production, Int.J. Eng. Technol. 12 (6) (2012) 130–133.[5] A.A. Ayoola, D.O. Adeniyi, S.E. Sanni, K.I. Osakwe, J.D. Jato, Investigating production parameters and impacts of potentialemissions from soybean biodiesel stored under different conditions, Environ. Eng. Res. 23 (1) (2018) 54–61.

Data on CaO and eggshell catalysts used for

biodiesel production

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Data on CaO and eggshell catalysts used for biodiesel production

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