Flexible methanol production units coupling solid oxide cells and thermochemical biomass conversion via different gasification technologies

Butera, Giacomo; Fendt, S.; Jensen, Søren Højgaard; Ahrenfeldt, Jesper; Clausen, Lasse Røngaard

doi:10.1016/j.energy.2020.118432

Cited by 39 publications

(30 citation statements)

References 39 publications

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“…Methanol, as a fuel, is flammable, colorless, volatile and toxic to humans. Methanol could be generated from biomass (bio-methanol) as well as fossil fuels [73][74][75]. Traditionally, methanol was produced by the fermentation of bacteria in a cellulose compound found in wood and some supplementary plants [76].…”

Section: Methanolmentioning

confidence: 99%

State of Art of Using Biofuels in Spark Ignition Engines

Elfasakhany

2021

Energies

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Biofuels are receiving increased scientific attention, and recently different biofuels have been proposed for spark ignition engines. This paper presents the state of art of using biofuels in spark ignition engines (SIE). Different biofuels, mainly ethanol, methanol, i-butanol-n-butanol, and acetone, are blended together in single dual issues and evaluated as renewables for SIE. The biofuels were compared with each other as well as with the fossil fuel in SIE. Future biofuels for SIE are highlighted. A proposed method to reduce automobile emissions and reformulate the emissions into new fuels is presented and discussed. The benefits and weaknesses of using biofuels in SIE are summarized. The study established that ethanol has several benefits as a biofuel for SIE; it enhanced engine performance and decreased pollutant emissions significantly; however, ethanol showed some drawbacks, which cause problems in cold starting conditions and, additionally, the engine may suffer from a vapor lock situation. Methanol also showed improvements in engine emissions/performance similarly to ethanol, but it is poisonous biofuel and it has some sort of incompatibility with engine materials/systems; its being miscible with water is another disadvantage. The lowest engine performance was displayed by n-butanol and i-butanol biofuels, and they also showed the greatest amount of unburned hydrocarbons (UHC) and CO emissions, but the lowest greenhouse effect. Ethanol and methanol introduced the highest engine performance, but they also showed the greatest CO2 emissions. Acetone introduced a moderate engine performance and the best/lowest CO and UHC emissions. Single biofuel blends are also compared with dual ones, and the results showed the benefits of the dual ones. The study concluded that the next generation of biofuels is expected to be dual blended biofuels. Different dual biofuel blends are also compared with each other, and the results showed that the ethanol–methanol (EM) biofuel is superior in comparison with n-butanol–i-butanol (niB) and i-butanol–ethanol (iBE).

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Section: Methanolmentioning

confidence: 99%

State of Art of Using Biofuels in Spark Ignition Engines

Elfasakhany

2021

Energies

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“…Other solutions involving e.g. pressurized entrained flow gasification and steam electrolysis may be favored [58]. A further alternative is to couple a single-mode unit with underground storage of electrolytic H2, produced when renewable energy sources are directly available.…”

Section: Green Electricity Analysismentioning

confidence: 99%

Techno-economic analysis of methanol production units coupling solid oxide cells and thermochemical biomass conversion via the TwoStage gasifier

Butera

Jensen²,

Ahrenfeldt³

et al. 2021

Fuel Processing Technology

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“…They are also considered as ideal alternatives to petroleum-based chemicals. In comparison with the fermentation process and some conventional thermal routes such as pyrolysis or gasification, − chemo-catalysis with high efficiency is more noteworthy and desirable in industry. Particularly, biomass conversion into platform molecules via oxidation is more attractive because the retention of oxygen atoms in the final product is feasible, and oxidized products are generally of high value.…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquid/Polyoxometalate Hybrid Catalyst with Tunable Functionalities for Boosting the Selectively Oxidative Transformation of Biobased Carbohydrates

Li,

Huang,

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Biomass oxidation by synergic catalysis appears to be an efficient and sustainable approach for biomass valorization. Here we demonstrate the oxidation of glucose and its upstream biomass derivatives to glycolic acid (GA) under O2 in the presence of polyoxometalates (POM) hybridized with ionic liquids (ILs). Particularly, 61.0% selectivity of GA with 88.2% conversion and excellent carbon balance was obtained by [C2COOHMIM]4PMoV. The catalytic system was also applicable to the oxidation of raw lignocellulose. The IL-POM hybrids exhibited excellent recyclability. Time-dependent reaction, temperature-dependent NMR, and computational studies revealed that IL with carboxyl groups was supposed to suppress over-oxidation via stabilization of sugar intermediates, while the superiority of V1/IL-POM originated from the single-substituted V on the 4H site of POM. Thus, the adsorption of protonated glucose was more exothermic and kinetically favorable with the barrier of 0.41 eV. This strategy is expected to provide clues for efficient biomass conversion over multifunctional catalysts.

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Flexible methanol production units coupling solid oxide cells and thermochemical biomass conversion via different gasification technologies

Cited by 39 publications

References 39 publications

State of Art of Using Biofuels in Spark Ignition Engines

State of Art of Using Biofuels in Spark Ignition Engines

Techno-economic analysis of methanol production units coupling solid oxide cells and thermochemical biomass conversion via the TwoStage gasifier

Ionic Liquid/Polyoxometalate Hybrid Catalyst with Tunable Functionalities for Boosting the Selectively Oxidative Transformation of Biobased Carbohydrates

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