Biofuels: aviation alternative?

Marsh, George

doi:10.1016/s1471-0846(08)70138-0

Cited by 57 publications

(45 citation statements)

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“…Natural gas and coal are in abundant supply in the United States but are still non-renewable and have a large environmental footprint [39]. Biomass based sources, are potentially more environmentally friendly, although the life cycle analysis must certainly be taken into account [40,41]. The United States military has estimated that at least 50% of its energy use would be from renewable sources by the year 2020 [42].…”

Section: Alternative or Synthetic Fuelsmentioning

confidence: 99%

The Effects of Storage on Turbine Engine Fuels

Johnson¹

2018

Flight Physics - Models, Techniques and Technologies

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Modern aviation requires reliable and safe sources of fuel which means fuel is frequently stored for extended periods. In addition, as fuel is used, new fuel is added which is not always compatible with the fuel in the tank. The incompatibility and long-term storage leads to a number of problems that will be addressed in this chapter. Some of the possible changes over time include formation of bioilms, deposit formation, water incorporation and additive depletion. The chemistry and biochemistry of each of these areas will be discussed along with how they might be prevented. New areas of research on low temperature oxidation of trace fuel components and the prevention of bacterial growth will be presented. Other problems are related to the reaction of trace components in the fuel which can lead to oxidation and deposit formation. Trace components also vary based on fuel source and lead to problems in compatibility of diferent fuels. In addition some of the reactions of fuel additives will be discussed.

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Section: Alternative or Synthetic Fuelsmentioning

confidence: 99%

The Effects of Storage on Turbine Engine Fuels

Johnson¹

2018

Flight Physics - Models, Techniques and Technologies

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“…Consequently, and even if all the input material (plastic or tyres) could be converted into bio crude, for instance, there will always be, as long as demand continues to grow, a need for fresh non-recyclate. Biological waste sources may also be used to create bio-energy, hence the inclusion of sewage sludge, as a means to create biogas and the use of waste cooking oil, to replace aviation fuel in the calculations [47].…”

Section: Substituting Fossil Fuel Functionsmentioning

confidence: 99%

Exergy Replacement Cost of Fossil Fuels: Closing the Carbon Cycle

et al. 2017

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Abstract:The Exergy Replacement Cost (ERC) is an indicator that is used to ascertain the sustainability of non-renewable resource depletion. Specifically, it measures the amount of exergy society would have to expend if it were forced to re-capture and re-concentrate dispersed minerals back into a manmade usable deposit. Due to an assumption regarding the non-substitutability of fossil fuels, the original method failed to properly account for them. In fact, it sub-estimated their exergy replacement cost forty-seven-fold, on average, when considering solar radiation to fuel, and by approximately fivefold when going from crop to fuel. This new method, via the cumulative exergy consumption (CExC), calculates the exergy replacement cost of photosynthesis and bio-energy production, as together they form the best available technology when it comes to closing the carbon cycle. This approach ties together the "cradle to grave" to the "grave to cradle", standardises the ERC calculations and enables comparisons between fuel and non-fuel mineral consumption. It also opens a discussion as to the role of the ERC in sustainability debates and whether resource depletion should be a matter of geological patrimony or material/energy services.

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“…The high lignin biomass can be used for the production of high-energy dense jet fuels, bioenergy and bioelectricity by thermochemical conversion methods [10,84]. Due to the cost involved in bioethanol production, the recent focus has been shifting towards the production of drop-in hydrocarbon biofuels and bioelectricity generation by thermal deconstruction processes such as pyrolysis and gasification respectively [85].…”

Section: Enhancing Lignin Content To Produce High Energy Dense Feedstmentioning

confidence: 99%

Engineering Plant Biomass Lignin Content and Composition for Biofuels and Bioproducts

et al. 2015

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Abstract:Lignin is an aromatic biopolymer involved in providing structural support to plant cell walls. Compared to the other cell wall polymers, i.e., cellulose and hemicelluloses, lignin has been considered a hindrance in cellulosic bioethanol production due to the complexity involved in its separation from other polymers of various biomass feedstocks. Nevertheless, lignin is a potential source of valuable aromatic chemical compounds and upgradable building blocks. Though the biosynthetic pathway of lignin has been elucidated in great detail, the random nature of the polymerization (free radical coupling) process poses challenges for its depolymerization into valuable bioproducts. The absence of specific methodologies for lignin degradation represents an important opportunity for research and development. This review highlights research development in lignin biosynthesis, lignin genetic engineering and different biological and chemical means of depolymerization used to convert lignin into biofuels and bioproducts. OPEN ACCESSEnergies 2015, 8 7655

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Biofuels: aviation alternative?

Cited by 57 publications

References 0 publications

The Effects of Storage on Turbine Engine Fuels

The Effects of Storage on Turbine Engine Fuels

Exergy Replacement Cost of Fossil Fuels: Closing the Carbon Cycle

Engineering Plant Biomass Lignin Content and Composition for Biofuels and Bioproducts

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