Please use this identifier to cite or link to this item:
Title: Techno-economic analysis of biodiesel production from microbial oil using cardoon stalks as carbon source
Authors: Castellini, Marco
Ubertini, Stefano 
Barletta, Diego
Baffo, Ilaria 
Buzzini, Pietro
Barbanera, Marco 
Journal: ENERGIES 
Issue Date: 2021
Today one of the most interesting ways to produce biodiesel is based on the use of oleaginous microorganisms, which can accumulate microbial oil with a composition similar to vegetable oils. In this paper, we present a thermo-chemical numerical model of the yeast biodiesel production process, considering cardoon stalks as raw material. The simulation is performed subdividing the process into the following sections: steam explosion pre-treatment, enzymatic hydrolysis, lipid production, lipid extraction, and alkali-catalyzed transesterification. Numerical results show that 406.4 t of biodiesel can be produced starting from 10,000 t of lignocellulosic biomass. An economic analysis indicates a biodiesel production cost of 12.8 USD/kg, thus suggesting the need to increase the capacity plant and the lipid yield to make the project economically attractive. In this regard, a sensitivity analysis is also performed considering an ideal lipid yield of 22% and 100,000 t of lignocellulosic biomass. The biodiesel production costs related to these new scenarios are 7.88 and 5.91 USD/kg, respectively. The large capacity plant combined with a great lipid yield in the fermentation stage shows a biodiesel production cost of 3.63 USD/kg making the product competitive on the current market of biofuels by microbial oil.
ISSN: 1996-1073
DOI: 10.3390/en14051473
Rights: Attribution-NonCommercial-NoDerivs 3.0 United States
Appears in Collections:A1. Articolo in rivista

Files in This Item:
File Description SizeFormat Existing users please
energies-14-01473-v2.pdfFinal paper available in gold open access here MBAdobe PDF    Request a copy
Show full item record

Citations 20

Last Week
Last month
checked on Jan 26, 2023

Page view(s)

Last Week
Last month
checked on Feb 1, 2023


checked on Feb 1, 2023

Google ScholarTM



This item is licensed under a Creative Commons License Creative Commons