Evaluation of lipid yield for biodiesel production extracted from microalgae Scenedesmus sp. submitted to different homogenization times and physicochemical changes

Kuss, Vivian Vicentini; Carliz, René Gonzalez; Díaz, Gisel Chenard; Viêgas, Carolina Vieira; Aranda, Donato Alexandre Gomes; Cruz, Yordanka Reyes

doi:10.34117/bjdv6n4-394

Cited by 4 publications

(3 citation statements)

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“…The green microalgae Monoraphidium contortum (CCMA-UFSCar701), isolated from freshwater in mangrove areas of Central and North Coasts of São Paulo State, Brazil, presented a high lipid content (43.60%) close to that observed in Botryococcus braunii (UTEX-2441; 48.85%), a strain from UTEX Culture Collection (USA) [ 159 ].The genus Scenedesmus sp. has been a target for biodiesel research [ 160 ]. Several authors focused on microalgal biodiesel using Scenedesmus sp and agro-industrial wastewater [ 161 ] or agro-industrial effluents [ 162 ].…”

Section: Biodiesel From Microalgae In Brazilmentioning

confidence: 99%

Development of Microalgae Biodiesel: Current Status and Perspectives

et al. 2022

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Microalgae are regarded as a promising source of biodiesel. In contrast with conventional crops currently used to produce commercial biodiesel, microalgae can be cultivated on non-arable land, besides having a higher growth rate and productivity. However, microalgal biodiesel is not yet regarded as economically competitive, compared to fossil fuels and crop-based biodiesel; therefore, it is not commercially produced. This review provides an overall perspective on technologies with the potential to increase efficiency and reduce the general costs of biodiesel production from microalgae. Opportunities and challenges for large-scale production are discussed. We present the current scenario of Brazilian research in the field and show a successful case in the research and development of microalgal biodiesel in open ponds by Petrobras. This publicly held Brazilian corporation has been investing in research in this sector for over a decade.

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Section: Biodiesel From Microalgae In Brazilmentioning

confidence: 99%

Development of Microalgae Biodiesel: Current Status and Perspectives

et al. 2022

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“…The ultrasound is an alternative to increase the yield of lipid extraction, among its characteristics stands out its easy handling, reduced level of impurities in the waste water, fast execution, high reproducibility, in addition to being able to be operated at low temperatures, being considered an economic and ecological process with low energy expenditure (KUMAR et al, 2015). Whereas the magnetic stirring promotes better dispersion and homogenization of the solvent inside the cell for lipid extraction, which can also be performed at ambient or moderate temperature ranges (VIÊGAS et al, 2010;KUSS et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Optimization of lipid extraction from aquatic plant Salvinia molesta D. S. Mitchell (Salviniaceae) with alternative solvents

Correia¹,

Moraes²,

Castro³

et al. 2022

Cereus

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“…(O'Brien 1998;Cruz et al 2019) Vieira (2020)(Vieira Viegas et al 2020) andKuss (2020)(Kuss et al 2020) describe acidity values above 50% in crude oils extracted from the microalgae Desmodesmus sp.…”

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confidence: 99%

Production of renewable hydrocarbons through hydrodeoxygenation of crude oil from microalgae Scenedesmus sp. with “in-situ” hydrogen production

Díaz

Rossa

Muchave

et al. 2023

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Fatty materials hydroprocessing is one of the most promising routes for renewable hydrocarbons production in the range of aviation bio-kerosene and green diesel. This study investigated the feasibility of producing renewable hydrocarbons from crude oil of the microalgae Scenedesmus sp. Two technological routes were explored: Route 1 - hydrodeoxygenation (HDO) of the microalgae crude oil with external hydrogen addition, and Route 2 - HDO of the microalgae crude oil with "in-situ" hydrogen production through glycerol reforming. Both routes employ the commercial catalyst NiMoS2/Al2O3, commonly used in removing contaminants in aviation kerosene and diesel refineries. Catalytic tests were conducted using a Design of Experiments (DOE) to evaluate the production of renewable hydrocarbons from the crude oil of microalgae Scenedesmus sp. Parameters such as temperature, glycerol amount, H2 partial pressure, and reaction time were varied to analyze the conversion of microalgae crude oil and the selectivity towards liquid hydrocarbons. Statistical analysis using ANOVA and response surface methodology demonstrated the possibility of producing renewable hydrocarbons from the crude oil of microalgae Scenedesmus sp. The proposed catalyst showed efficiency in converting triglycerides and fatty acids. Optimal conditions were identified for each route, resulting in positive conversion rates (≈100%) and high selectivity towards hydrocarbons, Route 1: 95.44% and Route 2: 94.37%. Most of the generated hydrocarbons were classified as renewable diesel, while the remaining portion belonged to the synthetic paraffinic kerosene (SPK) range. Route 2 demonstrated greater economic appeal as it enabled "in-situ" hydrogen production through glycerol reforming, eliminating the need for external hydrogen addition. Moreover, Route 2 achieved a higher hydrocarbon content in the aviation bio-kerosene range (72%) compared to Route 1, without the need for additional hydrocracking steps, along with 23% in the renewable diesel fraction up to 400 °C.

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Evaluation of lipid yield for biodiesel production extracted from microalgae Scenedesmus sp. submitted to different homogenization times and physicochemical changes

Cited by 4 publications

References 0 publications

Development of Microalgae Biodiesel: Current Status and Perspectives

Development of Microalgae Biodiesel: Current Status and Perspectives

Optimization of lipid extraction from aquatic plant Salvinia molesta D. S. Mitchell (Salviniaceae) with alternative solvents

Production of renewable hydrocarbons through hydrodeoxygenation of crude oil from microalgae Scenedesmus sp. with “in-situ” hydrogen production

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