Thermochemical Conversion of Sargassum for Energy Production: a Comprehensive Review

Tobío‐Pérez, Indira; Alfonso-Cardero, Arael; Díaz-Domínguez, Yosvany; Pohl, Sven; Piloto‐Rodríguez, Ramón; Lapuerta, Magı́n

doi:10.1007/s12155-021-10382-1

Cited by 15 publications

(5 citation statements)

References 166 publications

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“…k 7 = P CH4 /P H2 (14) where k i and P j correspond to the equilibrium constant for equation I and the partial pressure of gas j, respectively [6,16]. The ultimate analysis of the gasified biomasses was extracted from references [6,22], whose details can be found in Table 1, while the plastic mixture composition was obtained from [31].…”

Section: Model Descriptionmentioning

confidence: 99%

“…Technologies, such as pyrolysis and gasification, are popular to convert biomass and waste to energy and have received attention due to the versatility of the products; however, challenges exist in different forms [13][14][15]. For example, sargassum usually has a low hydrogen content; hence, its use as a fuel precursor can be limited [16]. Li et al [17] gasified Sargassum horneri biochar and found that hydrogen-rich syngas was produced, attributed to its high ash content; it was noted, however, that the high ash content might be related to the algae-growing environment.…”

Section: Introductionmentioning

confidence: 99%

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Parametric Modelling Study to Determine the Feasibility of the Co-Gasification of Macroalgae and Plastics for the Production of Hydrogen-Rich Syngas

Buentello-Montoya,

Armenta-Gutiérrez,

Maytorena-Soria

2023

Energies

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Seaweed is of importance to the environment due to properties such as its CO2 sequestration capability. On the other hand, plastic is a versatile material important to society. Unfortunately, the abundance of both plastics and seaweed represents a challenge due to the need of adequate waste management. At first, algae and plastics might not appear suitable for energy recovery; however, with co-gasification, the results are promising. This work presents a model to simulate the co-gasification of Chlorella vulgaris, Sargassum fluitans, and Sargassum natans with plastics. The effect of the gasification temperature (650–850 °C), equivalence ratio (0.25–0.45), and plastics/biomass ratio (0.0–1.0) on the produced gas’s lower heating value, tar concentration, and composition is assessed. Moreover, the environmental performance of using plastic to enhance the syngas produced from the co-gasification with sargassum is assessed using the life cycle assessment methodology. The results indicate that the lower heating value increases with the temperature and plastics/biomass ratio. Moreover, tar increases with the quantity of plastics, varying between 20 and 50 g/Nm3. Finally, adding plastics to algae during gasification reduces the variability in the syngas composition, simplifying the post-processing stage. With respect to environmental performance, gasification has an impact similar to those of pyrolysis and recycling, but the performance could improve with sufficient research and development.

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Section: Model Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Parametric Modelling Study to Determine the Feasibility of the Co-Gasification of Macroalgae and Plastics for the Production of Hydrogen-Rich Syngas

Buentello-Montoya,

Armenta-Gutiérrez,

Maytorena-Soria

2023

Energies

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“…It can also be performed using HydroThermal Liquefaction (HTL), which is a promising process for biofuels production. It requires less energy and is performed under subcritical conditions (at temperatures of around 200-380 • C and pressures between 2 and 28 MPa) [53,82]. Compared with pyrolysis, the bio-oil produced by this process is lower in oxygen and moisture content thus more stable [79].…”

Section: Bio-oilmentioning

confidence: 99%

“…The Sargassum genera are distributed in tropical and subtropical oceans, they play an essential role in maintaining the ecological balance, providing food, protecting invertebrates from predation, they also serve as nurseries for fish [82], approximately 4 10 6 -10 7 tons of biomass could be found annually in the Sargasso Sea [187]. It is a perennial genus of about ten centimeters to several meters long (up to 8 m for S. muticum), fixed by a discoid-conical holdfast.…”

Section: Study Example: Potential Energy Estimation Of Sargassum In T...mentioning

confidence: 99%

Biofuel Production from Seaweeds: A Comprehensive Review

et al. 2022

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Seaweeds represent a promising and sustainable feedstock for biofuel production which raises increasing research interests. Their high availability, easy fermentable composition, and good degradation potential make them a suitable candidate for alternating fossil fuels as an advantageous energy resource. This comprehensive review aims to summarize and discuss data from the literature on the biochemical composition of seaweeds and its potential for biomethane and biohydrogen production, as well as to investigate the effect of the common pretreatment methods. Satisfactory yields comparable to terrestrial biomass could be obtained through anaerobic digestion; concerning dark fermentation, the challenge remains to better define the operating conditions allowing a stable production of biohydrogen. Finally, we propose a potential energy production scheme with the seaweed found by the Caribbean Islands of Guadeloupe and Martinique, as well as current techno-economic challenges and future prospects. An annual energy potential of 66 GWh could be attained via a two-stage biohythane production process, this tends to be promising in terms of energetic valorization and coastal management.

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“…Biomass fuel is a renewable fuel produced by photosynthetic organisms (microalgae, macroalgae, bacteria, plants, etc.) or fungi through biological processes [23][24][25][26]. Solar fuel uses renewable solar energy, and the electricity used for electric fuel production also comes from renewable energy [27].…”

Section: Introductionmentioning

confidence: 99%

Zero-Carbon and Carbon-Neutral Fuels: A Review of Combustion Products and Cytotoxicity

Jin,

Li,

et al. 2023

Energies

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The use of zero-carbon and carbon-neutral fuels reduces emissions of conventional pollutants, but their emissions can be toxic and have various adverse effects on human health. This article reviews the possible combustion products of zero-carbon and carbon-neutral fuels, as well as their cytotoxic effects and potential health risks. At the same time, the review outlines biological models and toxicity detection methods commonly used in pollutant toxicity studies. Metals, nitrogen oxides (NOX), and ammonia (NH3) emitted from the combustion of metal fuels, hydrogen fuels, and ammonia fuels in zero-carbon fuels are harmful to human health. Exhaust emissions from carbon-neutral fuels, particularly biodiesel, and their blends with gasoline/diesel are cytotoxic, leading to severe cellular damage, such as oxidative damage, inflammatory responses, DNA damage, cell death, or apoptosis. Moreover, the normal function of the human body’s respiratory, cardiovascular, immune, digestive, urinary, and nervous systems may also be impacted by these fuel emissions according to cytotoxic research. Cytotoxicity of fuel combustion products is usually related to the fuel type, time, dose, and cell line used in the experiment. This review provides some ideas for the exhaust emission management of zero-carbon and carbon-neutral fuels and human health assessment. It also presents a theoretical and experimental basis for further research, including in vivo experiments.

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Thermochemical Conversion of Sargassum for Energy Production: a Comprehensive Review

Cited by 15 publications

References 166 publications

Parametric Modelling Study to Determine the Feasibility of the Co-Gasification of Macroalgae and Plastics for the Production of Hydrogen-Rich Syngas

Parametric Modelling Study to Determine the Feasibility of the Co-Gasification of Macroalgae and Plastics for the Production of Hydrogen-Rich Syngas

Biofuel Production from Seaweeds: A Comprehensive Review

Zero-Carbon and Carbon-Neutral Fuels: A Review of Combustion Products and Cytotoxicity

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