Fuels for the future

Reijnders, L.

doi:10.1080/19438150903068596

Cited by 19 publications

(6 citation statements)

References 125 publications

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“…After harvesting, the next major challenge is the de-watering the concentrated biomass. Usually, 90% of the post-harvest weight of the microalgae paste is water which needs to be reduced below 50% by weight for efficient oil extraction (Reijnders, 2008). Water is removed by heating the biomass that could consume a great amount of energy.…”

Section: Main Sectionmentioning

confidence: 99%

Evaluation of the potential of commercial use of microalgae in the world and in Ukraine

Pavliukh

Shamanskyi

Бойченко

et al. 2020

AEAT

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Purpose This paper aims to evaluate of the microalgae potential for commercial application, in particular to conduct experimental study of biogenic compounds removal from sewage waters by microalgae, and to calculate economical benefits from biofertizers and biofuel production. Design/methodology/approach Experimental study in the concentration change of nitrogen and phosphorus compounds in the cultivation of Chlorella Vulgaris microalgae in various types of sewage water was carried out. Findings The efficiency wastewater treatment by microalgae was confirmed. The economic benefit from the biomass utilization as biofuel production was calculated. Practical implications Implementation of wastewater treatment technology with biomass recycling for biofuel and biofertilizers production will minimize the impact on the environment. Originality/value As a results of experimental studies, the ability of microalgae to reduce biogenic elements in wastewater was confirmed. Microalgae can be used both for wastewater treatment to biogenic elements removal, such as phosphorous and nitrogen compounds, and biofuel, biofertilizers production. Prospects of the commercial use of microalgae are obvious. They are specially adapted to an environment dominated by viscous forces.

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Section: Main Sectionmentioning

confidence: 99%

Evaluation of the potential of commercial use of microalgae in the world and in Ukraine

Pavliukh

Shamanskyi

Бойченко

et al. 2020

AEAT

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“…Different data and approaches may be needed in attributional and consequential LCA ,. Regarding microalgal biofuels, knowledge often partly or fully relates to the research and development stage or to the limited production stage.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…Also, the comparison with other products may be different in consequential LCA. For instance, it is expected that life cycle emissions of fossil transport fuels will go up in the future, whereas their EROI will go down, and this may increase the relative attractiveness of microalgal biofuels if compared with fossil fuels, although not if compared with solar and wind energy …”

Section: Life Cycle Assessmentmentioning

confidence: 99%

Lipid‐based liquid biofuels from autotrophic microalgae: energetic and environmental performance

Reijnders

2012

WIREs Energy & Environment

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Commercial cultivation of autotrophic microalgae for food production dates back to the 1950s. Autotrophic microalgae have also been proposed as a source for lipid-based liquid biofuels. As yet, there is no commercial production of such biofuels and estimated near-term prices are far in excess of fossil fuel prices and prices of biofuels based on terrestrial food oil crops. Future costs of autotrophic microalgal lipid-based biofuels are very uncertain. The energetic return of energy investment in liquid autotrophic microalgal biofuels is below a factor 5, even if optimistic assumptions are made about future technologies. Available studies do not allow for firm estimates of life cycle greenhouse gas emissions of autotrophic microalgal lipid-based biofuels. Apart from greenhouse gases, life cycle pollutant emissions of autotrophic microalgal biodiesel may well be more of an environmental burden than the life cycle pollutant emissions linked to fossil diesel or biofuels based on canola or switchgrass. Whether the prospects for, and performance of, lipid-based biofuels from autotrophic microalgae in the more distant future will much improve appears to be largely dependent on breakthroughs in

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“…In recent years, the need to use fuels that are alternatives to conventional hydrocarbons has been increasingly growing. The indiscriminate use of fossil fuels is no longer sustainable, due to their limited availability and high environmental impact [ 1 , 2 ]. In the vast scenario concerning both fuels and energy conversion devices, electrochemical systems play a crucial role for hydrogen production and energy accumulation (primary and secondary cells and supercapacitors) as well as electricity production by means of fuel cells [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Pd–Co-Based Electrodes for Hydrogen Production by Water Splitting in Acidic Media

et al. 2023

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To realize the benefits of a hydrogen economy, hydrogen must be produced cleanly, efficiently and affordably from renewable resources and, preferentially, close to the end-users. The goal is a sustainable cycle of hydrogen production and use: in the first stage of the cycle, hydrogen is produced from renewable resources and then used to feed a fuel cell. This cycle produces no pollution and no greenhouse gases. In this context, the development of electrolyzers producing high-purity hydrogen with a high efficiency and low cost is of great importance. Electrode materials play a fundamental role in influencing electrolyzer performances; consequently, in recent years considerable efforts have been made to obtain highly efficient and inexpensive catalyst materials. To reach both goals, we have developed electrodes based on Pd–Co alloys to be potentially used in the PEMEL electrolyzer. In fact, the Pd–Co alloy is a valid alternative to Pt for hydrogen evolution. The alloys were electrodeposited using two different types of support: carbon paper, to fabricate a porous structure, and anodic alumina membrane, to obtain regular arrays of nanowires. The goal was to obtain electrodes with very large active surface areas and a small amount of material. The research demonstrates that the electrochemical method is an ideal technique to obtain materials with good performances for the hydrogen evolution reaction. The Pd–Co alloy composition can be controlled by adjusting electrodeposition parameters (bath composition, current density and deposition time). The main results concerning the fabrication process and the characterization are presented and the performance in acid conditions is discussed.

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Fuels for the future

Cited by 19 publications

References 125 publications

Evaluation of the potential of commercial use of microalgae in the world and in Ukraine

Evaluation of the potential of commercial use of microalgae in the world and in Ukraine

Lipid‐based liquid biofuels from autotrophic microalgae: energetic and environmental performance

Pd–Co-Based Electrodes for Hydrogen Production by Water Splitting in Acidic Media

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