The stability evaluation of lime mud as transesterification catalyst in resisting CO2 and H2O for biodiesel production

Li, Hui; Niu, Shengli; Lu, Chunmei; Cheng, Shiqing

doi:10.1016/j.enconman.2015.06.039

Cited by 27 publications

(6 citation statements)

References 35 publications

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“…Next, in Exhibit 6b, the existence of peak at 3642.01 cm −1 for calcined eggshell was due to the formation of OH in Ca(OH) 2 during adsorption of H 2 O by CaO and was similar to the findings of Rahman (2018). Around 500 cm −1 , the formation of CaO for calcined eggshell has been identified, which was similar to the results obtained by Li, Niu, Lu, and Cheng (2015). Exhibit 6c shows the FT‐IR spectra of the reused catalyst.…”

Section: Resultssupporting

confidence: 89%

Biodiesel production from waste chicken oil using nanoeggshell heterogeneous catalyst with isopropyl ether as cosolvent

Kirubakaran

Selvan

2020

Environmental Quality Mgmt

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The main aim of the present work is to produce biodiesel from waste chicken fat using a nanoeggshell heterogeneous catalyst. For the first time, isopropyl ether was used as cosolvent and investigated the effects of transesterification factors affecting the biodiesel yield. The eggshell has been activated in the muffle furnace at 900°C and was further characterized by using X‐ray diffraction analysis, Fourier transform infrared spectrometer, thermogravimetric analysis, transmission electron microscopy, Brunauer–Emmett–Teller, and Hammet indicator to study the catalytic behavior of the catalyst. Optimization of transesterification parameters such as methanol‐to‐oil ratio, methanol‐to‐cosolvent ratio, catalyst concentration, and reaction time have been investigated using statistical techniques of response surface methodology (RSM) with a central composite design. The empirical value of methyl ester yield obtained from RSM (95.7%) could be comparable with the experimental value (98.1%) and showed that the model shall be considered statistically significant at 97% confidence level. Using Design expert software, by point prediction tool, the experiments were repeated for two times under optimal conditions attained biodiesel yield of 97.2%. The experimental work explored that the addition of isopropyl ether improved the biodiesel yield with a reduction in reaction time from 4 to 1.5 h. The catalyst reusability was stable up to four cycles of the transesterification reaction.

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Section: Resultssupporting

confidence: 89%

Biodiesel production from waste chicken oil using nanoeggshell heterogeneous catalyst with isopropyl ether as cosolvent

Kirubakaran

Selvan

2020

Environmental Quality Mgmt

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“…The sharp absorption band between 3700 and 3325 cm −1 can be attributed to the O―H stretching vibration from absorbed moisture. More so, absorption bands at around 1421.58, 875.71, and 713.69 cm −1 for the raw catalyst are assigned to C―O asymmetric stretching, out‐of‐plane bend, and in‐plane bend vibration modes of from CaCO 3 contained in chicken eggshell . However, the appearance of a band around 1800 cm −1 is a result of the C═O functional group contained in aldehydes .…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Fig. 2 22 However, the appearance of a band around 1800 cm −1 is a result of the C═O functional group contained in aldehydes. 19 The appearance of a band at 1626.05 cm -1 , as can be seen in Fig.…”

Section: Ftir Analysismentioning

confidence: 89%

Synthesis and characterization of anthill‐eggshell‐Ni‐Co mixed oxides composite catalyst for biodiesel production from waste frying oil

Yusuff

Adeniyi

Azeez

et al. 2018

Biofuels Bioprod Bioref

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This study was conducted to develop a new composite heterogeneous catalyst, anthill‐eggshell‐Ni‐Co mixed oxides (AENiCo), for biodiesel production via transesterification of waste frying oil. The catalyst was synthesized using a co‐precipitation method and was characterized by Brunauer‐Emmett‐Teller (BET) surface area analysis, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X‐ray diffraction (XRD) and X‐ray fluorescence (XRF). The effects of parameters affecting the catalytic reaction, reaction temperature (40–80°C), reaction time (1–5 h), catalyst loading (1–9 wt%), and methanol‐to‐oil ratio (3:1–15:1) were investigated. The stability of the spent catalyst was also investigated during reuse. The data obtained showed that the maximum biodiesel yield of 90.23% could be obtained at a reaction temperature of 70°C, reaction time of 2 h, with a catalyst loading of 3 wt% and methanol‐to‐oil ratio of 12:1. The stability study showed that the AENiCo catalyst could be reused for up to four cycles. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…According to the title search of the WOS database, using "lime", "mud", and "transesterication" words, there were only ve papers detected from 1970 to 2020. 325,[327][328][329][330] Hui et al 327 conducted the transesterication of edible peanut oil via KF supported on lime mud catalyst. They obtained 99.09% oil conversion at 64 C, with a methanol to oil ratio of 12 : 1 and 5 wt% of catalyst.…”

Section: Lime Mudmentioning

confidence: 99%

Sustainable biodiesel generation through catalytic transesterification of waste sources: a literature review and bibliometric survey

et al. 2022

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The stability evaluation of lime mud as transesterification catalyst in resisting CO2 and H2O for biodiesel production

Cited by 27 publications

References 35 publications

Biodiesel production from waste chicken oil using nanoeggshell heterogeneous catalyst with isopropyl ether as cosolvent

Biodiesel production from waste chicken oil using nanoeggshell heterogeneous catalyst with isopropyl ether as cosolvent

Synthesis and characterization of anthill‐eggshell‐Ni‐Co mixed oxides composite catalyst for biodiesel production from waste frying oil

Sustainable biodiesel generation through catalytic transesterification of waste sources: a literature review and bibliometric survey

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