Effect of the kinds of alcohols on the structure and stability of calcium oxide catalyst in triolein transesterification reaction

Urasaki, Kohei; Takagi, Shunsuke; Mukoyama, Takashi; Christopher, J.; Urasaki, Kaori; Kato, Shigeru; Yamasaki, Akira; Kojima, Toshinori; Satokawa, Shigeo

doi:10.1016/j.apcata.2011.10.019

Cited by 17 publications

(10 citation statements)

References 12 publications

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“…Concerning methanolysis of vegetable oils over CaO, some researchers believe that calcium methoxide functions as the substantial solid active species under the reacting condition [44,69,[114][115][116], but some others think that CaO is combined not only with methanol but also with by-produced glycerol, depending on the methanolysis reaction phase [3,36,49,74,114,115,[117][118][119][120]. Based on this, calcium methoxide [44,114,116,121], diglyceroxide [36,74,114,117,120] and glycerolate [74] have been tested as solid catalysts in transesterification reactions.…”

Section: Other Calcium-based Catalystsmentioning

confidence: 97%

Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives

Marinković

Stanković

Veličković

et al. 2016

Renewable and Sustainable Energy Reviews

305

125

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Section: Other Calcium-based Catalystsmentioning

confidence: 97%

Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives

Marinković

Stanković

Veličković

et al. 2016

Renewable and Sustainable Energy Reviews

305

125

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“…CaO catalyst is one of the most studied systems for biodiesel production due to high activity, availability and its low cost [10]. A large number of researches related to the application of CaO as a catalyst were reported in last decade and, also, among them are three review articles by Kouzu et al [11], Boey et al [12] and Marinković et al [13].…”

mentioning

confidence: 99%

“…All these studies on transesterification reaction using CaO revealed the following [2,10]: 1) poisoning of CaO surface basic sites by the adsorption of H 2 O and CO 2 , after exposing CaO to air [14], as shown by the following equations:…”

mentioning

confidence: 99%

Calcium oxide based catalysts for biodiesel production: A review

Kesić¹,

Lukić²,

Zdujić

et al. 2016

CI&CEQ

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Vegetable oils are mainly esters of fatty acids and glycerol, which can be converted to fatty acid methyl esters (FAME), also known as biodiesel, by the transesterification reaction with methanol. In order to attain environmental benignity, a large attention has been focused in the last decades on utilizing heterogeneous catalysts for biodiesel production instead the homogenously catalyzed transesterification of vegetable oil. The pure CaO or CaO mixed with some other metal oxide due to its low solubility in methanol, FAME and glycerol, low cost and availability is one of the most promising among the proposed heterogeneous catalysts. Solid catalysts which contain CaO usually fulfill a number of important requirements, such as high activity at mild temperature, marginal leaching of Ca cations, long life activity, reusability in transesterification of vegetable oil and easy recovery from the final products of transesterification (FAME and glycerol). This review is focused to the recent application of pure CaO or CaO in complex catalyst structure and their use as heterogeneous base catalysts for biodiesel synthesis and suitability for industrial application. [Projekat Ministarstva nauke Republike Srbije, br. 45001]

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“…Therefore, research efforts have been made in recent decades to find efficient and affordable heterogeneous catalysts. Calcium oxide (CaO) has been used as a catalyst in a large number of published studies of heterogeneous basecatalyzed transesterification [22], due to its high catalytic activity under mild reaction conditions, wide availability and low cost [23,24]. Compared to CaO, there are significantly fewer published studies on the use of calcium hydroxide, Ca(OH) 2 , for methanolysis of vegetable oils, and their findings are contradictory in terms of the achieved yield of methyl esters [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Possibility of Using Commercial Hydrated Lime as a Catalyst for Rapeseed Oil Methanolysis

Halilovic

Bеgić

Iličković

et al. 2021

IRJPAC

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In this research, the possibility of using Ca(OH)2 in the form of commercial hydrated lime as a catalyst for the methanolysis of refined rapeseed oil was evaluated. Characterization of unused catalyst was performed by SEM-EDS, laser diffraction, XRF, BET, XRD and TG/DTG methods, and vegetable oil was analyzed for physicochemical characteristics. Within methanolysis, the effects of catalyst loading, reaction temperature and reaction time on methyl ester yield, density and viscosity of biodiesel, as well as the possibility of catalyst reuse were investigated. The obtained results showed that hydrated lime is an efficient catalyst for transesterification of vegetable oil, whereby the use of 3 wt% of catalyst relative to oil weight, at temperature 60℃ and mixing rate 1000 rpm after 120 min of transesterification reaction achieved a yield of methyl esters 98.76%. With three reuses of hydrated lime, without intermediate washing and regeneration procedures, the yield of rapeseed oil methyl ester remained above 90%.

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Effect of the kinds of alcohols on the structure and stability of calcium oxide catalyst in triolein transesterification reaction

Cited by 17 publications

References 12 publications

Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives

Calcium oxide as a promising heterogeneous catalyst for biodiesel production: Current state and perspectives

Calcium oxide based catalysts for biodiesel production: A review

Possibility of Using Commercial Hydrated Lime as a Catalyst for Rapeseed Oil Methanolysis

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