Fischer-Tropsch Diesel and Biofuels Exergy and Energy Analysis for Low Emissions Vehicles

Torres, Felipe Andrade; Doustdar, Omid; Herreros, José Martín; Li, Runzhao; Poku, Robert; Tsolakis, Athanasios; Martins, Jorge; Melo, S.A.B. Vieira de

doi:10.3390/app11135958

Cited by 5 publications

(3 citation statements)

References 70 publications

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“…Miyamoto et al [27] has found that for diesel fuels with a low C/H ratio, a lower adiabatic temperature is reached, which can reduce the production of NOx. Since F-T products are synthesised to have almost no aromatics, NOx emissions are expected to be even lower [28,29]. This is supported by Szybist et al [30] who show NOx emissions to be reduced by 21-22% compared to conventional diesel.…”

Section: Fischer-tropsch Synthesismentioning

confidence: 90%

A Comprehensive Review in Microwave Pyrolysis of Biomass, Syngas Production and Utilisation

Al-Qahtani

2023

Energies

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Lignocellulosic and waste materials, such as sewage sludge, can be broken down into its useful constituents and converted into fuel for engines. This paper investigates microwave pyrolysis to decompose biomass into H2 and CO (syngas), which may be catalysed in the Fischer–Tropsch (F-T) process to liquid biofuels. Using microwave radiation as the heat source for pyrolysis proves to yield large quantities of gas with higher concentrations of H2 and CO compared to conventional heating methods. This is largely due to the energy transfer mechanism of microwaves. Pyrolysis parameters such as temperature (which increases with input power), feedstock type, microwave absorber, and biomass moisture content influence syngas yield. Several papers reviewed for this study showed differing optimal conditions for microwave pyrolysis, all being heavily dependent on the biomass used and its composition. However, all researchers agreed on the thermal efficiency of microwave heating and how its material-selective nature can increase syngas yield. Compared to diesel fuels (while processing a similar efficiency and a higher cetane number), FT fuels and specifically pyrolysis may yield the benefit of reduced nitric oxides (NOx), particulate matter (PM), unburnt hydrocarbons (HC) and carbon monoxide (CO) emissions.

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Section: Fischer-tropsch Synthesismentioning

confidence: 90%

A Comprehensive Review in Microwave Pyrolysis of Biomass, Syngas Production and Utilisation

Al-Qahtani

2023

Energies

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“…%). The paraffinic composition of the two fuel fractions (as detailed in the Supplementary Materials, Table S3, streams 20 and 21) was based on relevant literature studies focusing on the production of jet-like and diesel-like fuels from hydrotreated oils [31][32][33]. The simulated jet and diesel fuels resulted in Lower Heating Values (LHVs) of 44.4 MJ/kg and 43.8 MJ/kg, respectively.…”

Section: Tags Hydrotreatmentmentioning

confidence: 99%

Techno-Economic Evaluation of Jet Fuel Production via an Alternative Gasification-Driven Biomass-to-Liquid Pathway and Benchmarking with the State-of-the-Art Fischer–Tropsch and Alcohol-to-Jet Concepts

Detsios,

Maragoudaki,

Rebecchi

et al. 2024

Energies

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Around 65% of the mitigation needed for the targeted net-zero carbon aviation emissions in 2050 is expected to come from Sustainable Aviation Fuels (SAFs). In this study, an alternative gasification-driven Biomass-to-Liquid (BtL) concept for the production of SAFs is introduced and evaluated. In particular, a fuel synthesis scheme based on the double-stage fermentation of the produced syngas (syngas → acetic acid → TAGs) is assessed instead of the conventional Fischer-Tropsch (FT) or Alcohol-to-Jet (AtJ) synthesis. The objective of the present work is the techno-economic evaluation of a large-scale (200 MWth) replication of the mentioned BtL concept, whose performance has been simulated in Aspen PlusTM (V.11) with reasonable upscaling considerations and models validated at a pilot scale. The estimated baseline Total Capital Investment (TCI) of €577 million lies in the typical range of €500–700 million that many recent techno-economic studies adopt for gasification-driven BtL plants of similar capacity, while the estimated annual operating costs of €50 million correspond to a 15–40% OpEx reduction compared to such plants. A discounted cash flow analysis was carried out, and a baseline Minimum Jet Selling Price (MJSP) equal to 1.83 €/L was calculated, while a range of 1.38–2.27 €/L emerged from the sensitivity analysis. This study sets the biological conversion of gasification-derived syngas into triglycerides (TAGs) as a promising alternative route for the production of SAFs. In general, gasification-driven BtL pathways, led by the relatively mature FT and AtJ technologies, are capable of thriving in the coming years based on their capability of advanced feedstock flexibility.

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“…The importance of electric vehicles for the reduction of GHG emissions and, consequently, lower consumption of oil-based fuels, is indisputable. However, internal combustion engines are still the main form of propulsion in road transportation today and the scenario indicates that they will be used on a large scale for the next decades [1,2].…”

Section: Introductionmentioning

confidence: 99%

Current Scenario and Future Potential of Hybrid and Electric Vehicles in the Brazilian Automotive Sector

Carvalho,

Santos,

Torres

2023

Blucher Engineering Proceedings

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The present work aims to present an overview that involves the electrification process of the road transport sector for passenger vehicles in Brazil, given the trend of decarbonization of this sector, discussing solutions adopted by some countries to encourage the growth of the fleet. electrified. The electrification of the road transport sector is a global trend and hybrid and electric vehicle sales are increasing every year. In 2022, the Brazilian fleet of hybrid and electric vehicles was approximately 126,000 units, with exponential growth projected to exceed 1 million units by 2030. Current constraints to increasing the fleet include limited charging infrastructure, insufficient government incentives, and the higher upfront costs of hybrid and electric models compared to internal combustion engine vehicles.

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Fischer-Tropsch Diesel and Biofuels Exergy and Energy Analysis for Low Emissions Vehicles

Cited by 5 publications

References 70 publications

A Comprehensive Review in Microwave Pyrolysis of Biomass, Syngas Production and Utilisation

A Comprehensive Review in Microwave Pyrolysis of Biomass, Syngas Production and Utilisation

Techno-Economic Evaluation of Jet Fuel Production via an Alternative Gasification-Driven Biomass-to-Liquid Pathway and Benchmarking with the State-of-the-Art Fischer–Tropsch and Alcohol-to-Jet Concepts

Current Scenario and Future Potential of Hybrid and Electric Vehicles in the Brazilian Automotive Sector

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