Room temperature production of jatropha biodiesel over coconut husk ash

Vadery, Vinu; Narayanan, Binitha N.; Ramakrishnan, Resmi M.; Cherikkallinmel, Sudha Kochiyil; Sugunan, S.; Narayanan, Divya P.; Sasidharan, Sreenikesh

doi:10.1016/j.energy.2014.04.045

Cited by 109 publications

(72 citation statements)

References 56 publications

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“…There are various reports regarding the use of some inorganic materials such as chlorides, hydroxides, carbonates and sulphates for the exfoliation of graphite to graphene . These reports prompt us to use CHA for the exfoliation of graphite since it is highly rich with many inorganic salts including KCl . Even though coconut husk have exotic application in various fields, to the best of our knowledge there is only one report on the catalytic use of coconut husk derived materials.…”

Section: Introductionmentioning

confidence: 99%

A Green Approach for the Synthesis of Coconut Husk Ash –Twisted Graphene Nanocomposites: Novel Catalysts for Solvent‐Free Biginelli Reaction

et al. 2019

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Herein we report an easy, scalable, cost‐effective and green synthesis of twisted graphene from bulk graphite by a ball milling technique with the in situ formation of novel coconut husk ash (CHA) ‐ twisted graphene nanocomposite and its catalytic application towards multicomponent Biginelli reaction. Here the ash derived from naturally available waste material (coconut husk) is effectively used as an exfoliating agent for the scissoring of graphene layers from bulk graphite for the first time. The elemental analysis data obtained by inductively coupled plasma atomic emission spectroscopy (ICP‐AES) provided useful information regarding the composition of CHA and the nanocomposites. The X‐ray diffraction (XRD) patterns confirmed the exfoliation of graphite into graphene layers. Raman spectroscopic analysis evaluated the quality and the nature of graphene layers in the composites. X‐ray photoelectron spectroscopy (XPS) analysis confirmed the bonding between the graphene layers and CHA particles. Transmission electron microscopy (TEM) images revealed the presence of few layered graphene as well as twisted graphene in the composites. The CHA – twisted graphene nanocomposite is found to be an excellent reusable catalyst for Biginelli reaction with a higher yield of 3,4‐dihydropyrimidinones within short duration of reaction.

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Section: Introductionmentioning

confidence: 99%

A Green Approach for the Synthesis of Coconut Husk Ash –Twisted Graphene Nanocomposites: Novel Catalysts for Solvent‐Free Biginelli Reaction

et al. 2019

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“…In spite of this, room temperature biodiesel production for Jatropha curcas oil using heterogeneous catalyst was reported [28]. Figure 6 presents the effect of reaction temperature on TAN reduction for P. pinnata seed oil.…”

Section: Reaction Temperaturementioning

confidence: 97%

Single Step Biodiesel Production from Pongamia pinnata (Karanja) Seed Oil Using Deep Eutectic Solvent (DESs) Catalysts

Alhassan

Kumar

2016

Waste Biomass Valor

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This paper reports the production of biodiesel from Pongamia pinnata seed oil via single step process. The efficiency of deep eutectic solvents (DESs) synthesized from the mixture of choline chloride and para toluene solfonic acid (PTSA), was used with silica support (So-DES) and without support (Un-DES) as heterogeneous and homogeneous catalysts, respectively. The oil esterification with methanol and methyl tert-butyl ether as solvents was conducted. From the results, the optimum reaction conditions for esterification of P. pinnata seed oil with Un-DES are; catalyst loading 1 (wt%/v), reaction time was 120 min and temperature was 343 K. maximum total acid number (TAN) reduction obtained under these conditions was 0.57 mg/KOH/g and a corresponding biodiesel conversion of 97.53 %. The optimal reaction conditions for esterification with So-DES using methanol as solvent are; temperature of 353 K, catalyst loading was 5 (wt%/v) and reaction time was 240 min. The optimum TAN reduction obtained under these conditions was 1.42 mg/KOH/g with corresponding biodiesel conversion of 89.3 %. Catalysts reuse was between four to seven reuses for Un-DES and So-DES respectively. Physico-chemical properties studies indicated that, viscosity, density and calorific values were within acceptable standard limits. It could be concluded that, DES synthesized from choline chloride and PTSA either with or without supporting material, could effectively produce biodiesel with acceptable fuel quality via single step process.

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“…Organic compound contain high amount of carbon, oxygen and metal salt including K, Na, Mg, Ca [48]. Upon combustion at high temperature the carbon and oxygen content reduces, leaving alkali metal oxides such as CaO, K2O, MgO and the main ingredients in ashes [49]. High presence of basic strength oxides in the ashes increases its catalytic property to produce biodiesel [50].…”

Section: Biomass Ashesmentioning

confidence: 99%

“…Biomass ashes have potential as a good catalyst including cocoa pod husk ash [51], coconut husk ash [49] and empty palm bunch ash [64].…”

Section: Activated Carbon Catalystmentioning

confidence: 99%

Advancement in the Utilization of Nanocatalyst for Transesterification of Triglycerides

Kumar¹,

Sharma²,

Srivastava³

et al. 2018

JNST

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Room temperature production of jatropha biodiesel over coconut husk ash

Cited by 109 publications

References 56 publications

A Green Approach for the Synthesis of Coconut Husk Ash –Twisted Graphene Nanocomposites: Novel Catalysts for Solvent‐Free Biginelli Reaction

A Green Approach for the Synthesis of Coconut Husk Ash –Twisted Graphene Nanocomposites: Novel Catalysts for Solvent‐Free Biginelli Reaction

Single Step Biodiesel Production from Pongamia pinnata (Karanja) Seed Oil Using Deep Eutectic Solvent (DESs) Catalysts

Advancement in the Utilization of Nanocatalyst for Transesterification of Triglycerides

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