Towards a sustainable approach for development of biodiesel from plant and microalgae

Singh, Bhaskar; Guldhe, Abhishek; Rawat, Ismail; Bux, Faizal

doi:10.1016/j.rser.2013.08.067

Cited by 260 publications

(98 citation statements)

References 264 publications

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“…This was true regardless of the kind of catalyst involved, LiOH, KOH or NaOH. The results are in agreement with what is presented in the literature, denoting that the best reaction temperature in the transesterification process is slightly below the boiling point of the reacting alcohol (Singh et al, 2014). Extending the reaction temperature beyond the boiling point of the alcohol lowers the FAME yield of the biodiesel, since the ratio of methanol to oil decreases due to the evaporation of alcohol (Issariyakul & Dalai, 2014).…”

Section: Resultssupporting

confidence: 91%

“…Moreover, algae can grow in arid land, swamps and saline or fresh water, which means they do not compete for land utilization against others crops, either for fuel or food production (Patil et al, 2011b). However, the problems associated with algae in biodiesel production are in its harvesting, due to its high water content, and in lipid extraction because of its cellular structure (Singh et al, 2014). Given that microalgae have cell walls that minimize a solvent's entrance into the lipids, processes have been developed to harness extraction by weakening the cell walls or even breaking them down.…”

Section: Introductionmentioning

confidence: 99%

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Biodiesel from Three Microalgae Transesterification Processes using Different Homogenous Catalysts

Cercado¹,

Ballesteros²,

Capareda³

2018

IJTech

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Biodiesel was produced using three different alkali catalysts, namely KOH, NaOH and LiOH. The aim of the study was to determine which of these is the most effective as far as Fatty Acid Methyl Ester (FAME) yield is concerned in producing biodiesel from microalgae. Three different transesterification processes were considered; conventional, microwave-assisted and ultrasound-assisted. The study was able to show that NaOH and KOH generated far better FAME values compared to LiOH in all three transesterification processes. The introduction of microwave or ultrasound in the transesterification slightly increased the FAME yield by 5% and cut the reaction time by 50%. The best FAME yield was attained when the optimum process parameters were a methanol to oil ratio of 12:1; a catalyst load of 2% for NaOH and 3% for KOH; a reaction time of 12 minutes; and a microwave output power rate of 600 watts.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Biodiesel from Three Microalgae Transesterification Processes using Different Homogenous Catalysts

Cercado¹,

Ballesteros²,

Capareda³

2018

IJTech

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“…To overcome from these problems we need slight chemical modifications mainly transesterfication, pyrolysis and emulsification. Among these, the transesterification is the key and foremost important step to produce the safest, cleanest and ecofriendly fuel from vegetable oils, using an alkali catalyst and methanol as a receptor [27][28][29]. TAGs consists of three long chains of fatty acids attached to a glycerol backbone.…”

Section: Chemical Composition Of Biodiesel and Transesterificationmentioning

confidence: 99%

Assessment of Microalgal Triacylglycerol as Environmental Benign Approach for Biodiesel Production

Srivastava¹,

Kumar²

2018

JESPR

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Energy plays a vital role for the development for the human welfare. The global economy totally runs on energy, or we can say that all living things depends on it, for example, plants takes energy from the sunlight, water and minerals, and this process is called photosynthesis, animals takes energy from plants and from one another, whereas humans takes energy from both. As the population increases, the uses of fossil fuels increased rapidly and because of this supply of renewable resources get affected and global warming makes earth more complicated due to increase in carbon dioxide. The production of biodiesel using microalgae biomass appears to be more viable and cheaper. Microalgae are a good source of lipid and triacylglycerol (TAG) that are sustainable feedstock for biodiesel. The present paper is an attempt to know the potential of microalgae for the biodiesel production.

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“…Conforme Singh et al (2014) o crescimento de 2% ao ano de energia para transporte pode conduzir a 80% mais emissões de gases de efeito estufa em comparação aos níveis de 2002.…”

Section: Introductionunclassified

“…Fontes renováveis como energia solar, eólica, geotérmica e a partir de biomassa vegetal têm a capacidade de prover alternativas para uma energia mais limpa (SINGH et al, 2014). Segundo Beer et al (2011), o consumo de combustíveis renováveis tem impacto ambiental reconhecidamente menor.…”

Section: Introductionunclassified

Produção de biodiesel por transesterificação enzimática in situ em solvente orgânico a partir da biomassa de Desmodesmus sp.

John¹,

Silva²,

Hoeltz³

et al. 2017

RJP

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RESUMOUm dos materiais alternativos mais investigados atualmente para a produção de biodiesel são as microalgas. O presente trabalho teve como objetivo a avaliação do método de transesterificação enzimática in situ da microalga Desmodesmus sp. em solvente orgânico, acompanhando a reação através do monitoramento on-line com sonda de infravermelho e cromatografia gasosa. Dois ensaios foram realizados em condições distintas para efeito comparativo. Baseado nos resultados obtidos por espectroscopia e cromatografia, bem como nas propriedades calculadas a partir do perfil cromatográfico, pode-se concluir que é possível à produção de biodiesel in situ a partir de biomassa de microalgas, reduzindo a etapa de extração de óleo. Palavras-chave:Microalga. Desmodesmus sp. Biodiesel. Transesterificação in situ. Espectroscopia de infravermelho. Cromatografia gasosa. ABSTRACTOne of the most investigated alternative materials for the production of biodiesel is microalgae. The present work had the objective of evaluating the in situ enzymatic transesterification method using the microalga Desmodesmus sp. in organic solvent, following the reaction through online monitoring with infrared spectroscopy and gas chromatography. Two experiments were carried out under different conditions for comparative effect. Based on the results obtained by spectroscopy and chromatography, as well as the properties calculated from the chromatographic profile, it can be concluded that it is possible to produce in situ biodiesel from microalgae biomass, eliminating the oil extraction step.

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Towards a sustainable approach for development of biodiesel from plant and microalgae

Cited by 260 publications

References 264 publications

Biodiesel from Three Microalgae Transesterification Processes using Different Homogenous Catalysts

Biodiesel from Three Microalgae Transesterification Processes using Different Homogenous Catalysts

Assessment of Microalgal Triacylglycerol as Environmental Benign Approach for Biodiesel Production

Produção de biodiesel por transesterificação enzimática in situ em solvente orgânico a partir da biomassa de Desmodesmus sp.

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