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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Jet fuel production in eucalyptus pulp mills: Economics and carbon footprint of ethanol vs. butanol pathway

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Author(s):
Braz, Danilo Silva [1] ; Mariano, Adriano Pinto [1]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, Sch Chem Engn, Lab Optimizat Design & Adv Control LOPCA, Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Bioresource Technology; v. 268, p. 9-19, NOV 2018.
Web of Science Citations: 4
Abstract

This work assessed the economics and carbon footprint of alcohol (ethanol vs. n-butanol)-to-jet fuel production using eucalyptus for feedstock. Considering a risk-mitigating strategy of investing first in the alcohol plant (organosolv pretreatment, enzymatic hydrolysis, fermentation) and waiting five years until the second investment (alcohol-to-jet plant), the minimum jet fuel selling price was similar in both ethanol and butanol cases (2.10 and 2.08 US\$/1 for 20% Internal Rate of Return, IRR). In contrast, according to a stochastic decision-making framework that had carbon footprint as one of the criteria, the ethanol pathway is more promising. Nevertheless, even optimistic assumptions (regarding e.g. lignin price, and the interval between project phases) were ineffective to prevent eucalyptus jet fuel from depending on price premium (> 1.00 US\$/1), which is needed for better returns than those from eucalyptus ethanol plants. Therefore, the feasibility of alcohol-to-jet fuel production in eucalyptus pulp mills depends on long-term, stable premium and subsidy. (AU)

FAPESP's process: 15/07097-5 - Development of a bioprocess with high energy efficiency for the flexible production of butanol/ethanol integrated to a Kraft pulp mill
Grantee:Adriano Pinto Mariano
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants