The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review

Zuorro, Antonio; García-Martínez, Janet B.; Barajas-Solano, Andrés F.

doi:10.3390/catal11010022

Cited by 40 publications

(30 citation statements)

References 188 publications

(203 reference statements)

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“…This is due to their fast growth rate. They can grow in wastewater while reducing the concentration of harmful nutrients; moreover, their biomass can be used as feedstock for a wide range of industrial interest products [20].…”

Section: Introductionmentioning

confidence: 99%

The Circular Economy Approach to Improving CNP Ratio in Inland Fishery Wastewater for Increasing Algal Biomass Production

García-Martínez

Sanchez-Tobos

Carvajal-Albarracín

et al. 2022

Water

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In this work, the capacity of wastewater from an inland fishery system in Colombia (Norte de Santander) was tested as culture medium for Chlorella sp. and Scenedesmus sp. Due to insufficient N and P concentrations for successful algae growth, the effect of wastewater replenishment with NO3, PO4, and Na2CO3 or NaHCO3 as a carbon source was analyzed using a three-factor nonfactorial response surface design. The results showed that the addition of NaNO3 (0.125 g/L), K2HPO4 (0.075 g/L), KH2PO4 (0.75 g/L), and NaHCO3 (0.5 and 2 g/L for Chlorella sp. and Scenedesmus sp. respectively) significantly increased the biomass of Chlorella sp. (0.87 g/L) and Scenedesmus sp. (0.83 g/L). Although these results show that the addition of other nutrients is not necessary (Na, Mg, SO4, Ca, etc.), it is still essential to determine the quality of the biomass produced in terms of its application as a feed supplement for fish production.

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Section: Introductionmentioning

confidence: 99%

The Circular Economy Approach to Improving CNP Ratio in Inland Fishery Wastewater for Increasing Algal Biomass Production

García-Martínez

Sanchez-Tobos

Carvajal-Albarracín

et al. 2022

Water

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“…In the case of biorefineries, several thermochemical and catalytic processes have been studied for the treatment and upgrading of raw materials from renewable sources, aiming at the production of biofuels (Kang et al, 2020). Among them, we can mention the gasification and synthesis of Fischer-Tropsch and thermochemical processes such as pyrolysis and liquefaction followed by hydrodeoxygenation processes (Gollakota et al, 2018;Zuorro et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Uso de compostos de nióbio como catalisadores na produção de biocombustíveis: uma revisão

Moreira¹,

Souza²,

Silva³

et al. 2022

J. Eng. Exact Sci.

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A necessidade de substituir combustíveis fósseis por biocombustíveis não é um tema recente na comunidade acadêmica. Pesquisadores estudam e desenvolvem combustíveis alternativos há décadas e, com isso, combustíveis como o biodiesel e o etanol de primeira geração se consolidaram no mercado. No entanto, esses biocombustíveis de primeira geração competem com a indústria de alimentos, o que afeta sua oferta e preço. Por outro lado, os combustíveis de segunda geração são produzidos a partir de biomassa lignocelulósica e resíduos orgânicos de atividades urbanas e agroindustriais, não competindo com a indústria de alimentos. No entanto, a maioria desses processos ainda não é economicamente viável. Duas das principais contribuições para essa inviabilidade são o baixo desempenho dos processos (baixa conversão da matéria-prima e baixa seletividade dos produtos de interesse) e o alto custo dos catalisadores, que muitas vezes são feitos de metais nobres de pouca disponibilidade. O Nióbio é um metal com diversas aplicações, mas ainda pouco explorado industrialmente como catalisador, apesar de possuir propriedades interessantes para essa finalidade. Este artigo de revisão compila trabalhos envolvendo o uso do nióbio e seus compostos como catalisador em diversos processos de produção de biocombustíveis, como esterificação, pirólise, liquefação, síntese Fischer-Tropsch, desoxigenação, entre outros. Além da revisão da literatura, este artigo apresenta uma análise crítica a respeito das aplicações de cada processo e tecnologia, bem como das pesquisas desenvolvidas pelos autores.

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“…Other studies concern strain selection and the development of cultivation methods [41]. Process technical aspects such as economic profitability, energy efficiency, and environmental performance have also been studied by several authors.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Algae-Based Biodiesel Production Topologies via Inherent Safety Index (ISI)

2021

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Increasing energy needs have led to soaring fossil fuel consumption, which has caused several environmental problems. These environmental aspects along with the energy demand have motivated the search for new energy systems. In this context, biofuels such as biodiesel have been developing into a substitute for conventional fuels. Microalgae are considered a promising option for biodiesel production due to their high lipid content. Therefore, it is important to analyze the technical aspects of the biodiesel production system. In this work, the inherent safety analysis of three emerging topologies for biodiesel production from microalgae was performed using the inherent safety index (ISI) methodology. Selected topologies include biodiesel production via lipid extraction and transesterification, in-situ transesterification, and hydrothermal liquefaction (HTL). The results revealed that the processes are inherently unsafe achieving total inherent safety index scores of 30, 29, and 36. The main risks in the cases were associated with the chemical safety index. Operating conditions represented no risk for topologies 1 and 2, while for topology 3 pressure and temperature were identified as critical variables. In general, topology 2 showed better performance from a safety perspective.

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The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review

Cited by 40 publications

References 188 publications

The Circular Economy Approach to Improving CNP Ratio in Inland Fishery Wastewater for Increasing Algal Biomass Production

The Circular Economy Approach to Improving CNP Ratio in Inland Fishery Wastewater for Increasing Algal Biomass Production

Uso de compostos de nióbio como catalisadores na produção de biocombustíveis: uma revisão

Evaluation of Algae-Based Biodiesel Production Topologies via Inherent Safety Index (ISI)

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