Economic and legal aspects of the direct processing of sugar beet to ethanol

Olba–Zięty, Ewelina; Gołaszewski, Janusz; Krzykowski, Michał; Zięty, Jakub Jan; Klink, Holger

doi:10.1088/1755-1315/214/1/012050

Cited by 1 publication

(2 citation statements)

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“…73 kg of the 1000 kg feed, a breakeven bioethanol fuel price of 1.85 $/L can be achieved. This is in close agreement with the price presented in the work by Olba-Ziety et al [68]. The breakeven price is defined as the price at which bioethanol must be sold in order to breakeven with system net duty and estimated CapEX costs.…”

Section: Simulation Economic Evaluationsupporting

confidence: 88%

“…This will indicate exactly how the designed process in this study compares with other models. A study by Olba-Ziety et al [68] focuses on the commercial evaluation of bioethanol production from sugar beets and is compared with the results of this study [68]. The comparison is presented in Table 8, from which it is seen that by reducing the net system duty to 6500 kJ/tonne biomass and assuming 30% conversion of hemicellulose content in the biomass, which comes up to approx.…”

Section: Simulation Economic Evaluationmentioning

confidence: 95%

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Energy and Economic Analysis of Date Palm Biomass Feedstock for Biofuel Production in UAE: Pyrolysis, Gasification and Fermentation

et al. 2020

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This work evaluates date palm waste as a cheap and available biomass feedstock in UAE for the production of biofuels. The thermochemical and biochemical routes including pyrolysis, gasification, and fermentation were investigated. Simulations were done to produce biofuels from biomass via Aspen Plus v.10. The simulation results showed that for a tonne of biomass feed, gasification produced 56 kg of hydrogen and fermentation yielded 233 kg of ethanol. Process energy requirements, however, proved to offset the bioethanol product value. For 1 tonne of biomass feed, the net duty for pyrolysis was 37 kJ, for gasification was 725 kJ, and for fermentation was 7481.5 kJ. Furthermore, for 1 tonne of date palm waste feed, pyrolysis generated a returned USD $768, gasification generated USD 166, but fermentation required an expenditure of USD 763, rendering it unfeasible. The fermentation economic analysis showed that reducing the system’s net duty to 6500 kJ/tonne biomass and converting 30% hemicellulose along with the cellulose content will result in a breakeven bioethanol fuel price of 1.85 USD/L. This fuel price falls within the acceptable 0.8–2.4 USD/L commercial feasibility range and is competitive with bioethanol produced in other processes. The economic analysis indicated that pyrolysis and gasification are economically more feasible than fermentation. To maximize profits, the wasted hemicellulose and lignin from fermentation are proposed to be used in thermochemical processes for further fuel production.

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Section: Simulation Economic Evaluationsupporting

confidence: 88%

Section: Simulation Economic Evaluationmentioning

confidence: 95%