Experimental investigation on fast pyrolysis of freshwater algae. Prospects for alternative bio-fuel production

Piloni, Roxana; Daga, Inés Claudia; Urcelay, Carlos; Moyano, Elizabeth L.

doi:10.1016/j.algal.2021.102206

Cited by 17 publications

(6 citation statements)

References 43 publications

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“…B. braunii is considered a potential source of renewable fuels because it can produce large amounts of hydrocarbons through a thermal conversion process. − The hydrocarbons produced by B. braunii in the form of lipids can reach up to 75% of the dry mass of the algae, depending on the growing conditions. , The hydrocarbons produced by B.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Study of Copyrolysis of the Green Microalgae Botryococcus braunii and Victorian Brown Coal by Thermogravimetric Analysis

et al. 2021

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The copyrolysis of the green microalgae Botryococcus braunii and Victorian brown coal was studied by thermogravimetric analysis using the Kissinger−Akahira−Sunose (KAS), Flynn−Wall−Ozawa (FWO), and Friedman methods. This research aims to study the synergistic effect of mixing B. braunii and Victorian brown coal in pyrolysis reactions on the kinetic parameter using thermogravimetric analysis. Copyrolysis was carried out at four heating rates, 10, 15, 20, and 25 °C/min. The copyrolysis reaction of B. braunii and Victorian brown coal occurred from 155.79 to 545.27 °C; this temperature range was lower than that for the pyrolysis of only B. braunii under the same conditions. However, mixing the two samples increased the thermal decomposition temperature for each conversion value (α), as well as the average activation energy, due to the presence of compounds that require high temperatures to undergo pyrolysis in the Victorian brown coal. The average activation energies of the copyrolysis reaction of B. braunii and Victorian brown coal determined using the KAS, FWO, and Friedman methods were 195.20

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Section: Introductionmentioning

confidence: 99%

Kinetic Study of Copyrolysis of the Green Microalgae Botryococcus braunii and Victorian Brown Coal by Thermogravimetric Analysis

et al. 2021

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“…This is because Cp3 IR plots with the indicators of intact OM in the bottom left quadrant (Figure 5a). These include anhydrosugars, which primarily are indicators of intact polysaccharides from plants (Pouwels et al, 1987), but also found in some algae (Piloni et al, 2021); 4-isopropenylphenol, a pyrolysis product of Sphagnum acid and sensitive to aerobic degradation (Schellekens et al, 2015); and the other polysaccharides from mixed origins (i.e. microbes, plants, algae; Nguyen et al, 2003; Pouwels et al, 1987).…”

Section: Resultsmentioning

confidence: 99%

Application of mid-infrared spectroscopy for the quantitative and qualitative analysis of organic matter in Holocene sediment records

Ninnes,

Meyer-Jacob,

Tolu

et al. 2023

The Holocene

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The organic matter composition of lake sediments influences important in-lake biogeochemical processes and stores information on environmental changes. Extracting this information is notoriously difficult because of the complexity of the organic matter matrix, which routinely imposes trade-offs between high temporal and analytical detail in the selection of methods of analysis. Here, we demonstrate the potential of diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) for achieving both of these objectives using untreated bulk samples from two Holocene lake-sediment cores from central Sweden. We develop quantitative models for sediment total organic carbon (TOC) with the same predictive abilities as models based on samples diluted with KBr and qualitatively characterize the organic matter using a spectra processing-pipeline combined with principal component analysis. In the qualitative analysis we identified four organic matter sub-fractions and the interpretation of these is supported and further advanced with molecular data from pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). Within these organic fractions, compound groups such as aromatics, lignin, aliphatics, proteins and polysaccharides were identified by means of DRIFTS and the analyses and processes outlined here enables rapid and detailed quantitative and qualitative analysis of sediment organic matter. The DRIFTS approach can be used as stand-alone method for OM characterization with high temporal resolution in Holocene sediment records. It may also function as a screening process for more specific analyses of sample subsets, such as when coupled with pyrolysis-GC/MS to further tease apart the OM composition, identify sources and determine degradation status.

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“…As such, it has garnered considerable attention in various domains, such as conserving the environment, achieving carbon neutrality and promoting renewable energy sources (Jiang et al ., 2023; Palanimuthu et al ., 2023; Sánchez‐Quintero et al ., 2023). Over the past years, the development and utilisation of A. platensis gradually tend to product diversification, from the initial food and feed field expanding to cosmetics, medicine, bioenergy, eco‐fertiliser and many other promising industries (Matos et al ., 2017; Piloni et al ., 2021; El‐Shall et al ., 2023; Maddiboyina et al ., 2023; Verni et al ., 2023). In addition, Spirulina culture technology has implemented Internet‐of‐Things monitoring technology for absorbance, temperature, light intensity and water level (Lim et al ., 2023).…”

Section: Introductionmentioning

confidence: 99%

Arthrospira platensis as future food: a review on functional ingredients, bioactivities and application in the food industry

Chang,

Liu

2023

Int J of Food Sci Tech

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SummaryThe coronavirus disease 2019 (COVID‐2019) pandemic and other factors have significantly increased the number of people suffering from food shortages worldwide in 2020. As many as 720–811 million people, which is nearly 10% of the global population, are facing hunger. Thus, the need for substances that fulfil human nutritional requirements is growing to address this issue. Arthrospira platensis (A. platensis), commonly or commercially called spirulina, is an ideal product that contains various functional ingredients. Given them, various health benefits of A. platensis are proven gradually, including anti‐oxidant, immune regulation, anti‐inflammation, hypoglycaemia, anti‐bacterial and anti‐radiation properties. In recent years, functional ingredients of A. platensis are showing the potential to be functional foods. This paper gives an overview on the functional ingredients and the resulting health benefits of A. platensis summarises the research progress of A. platensis as functional foods in recent years and looks forward to its application development prospects.

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Experimental investigation on fast pyrolysis of freshwater algae. Prospects for alternative bio-fuel production

Cited by 17 publications

References 43 publications

Kinetic Study of Copyrolysis of the Green Microalgae Botryococcus braunii and Victorian Brown Coal by Thermogravimetric Analysis

Kinetic Study of Copyrolysis of the Green Microalgae Botryococcus braunii and Victorian Brown Coal by Thermogravimetric Analysis

Application of mid-infrared spectroscopy for the quantitative and qualitative analysis of organic matter in Holocene sediment records

Arthrospira platensis as future food: a review on functional ingredients, bioactivities and application in the food industry

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