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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.)

Organosolv fractionation of eucalyptus: Economics of cellulosic ethanol and chemicals versus lignin valorization to phenols and polyols

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Author(s):
Dornelles, Larissa Braga [1] ; Filho, Rubens Maciel [1] ; Mariano, Adriano Pinto [1]
Total Authors: 3
Affiliation:
[1] Univ Campinas UNICAMP, Sch Chem Engn, Lab Optimizat Design & Adv Control, Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: INDUSTRIAL CROPS AND PRODUCTS; v. 173, DEC 1 2021.
Web of Science Citations: 0
Abstract

This work assessed the economics of the organosolv fractionation of eucalyptus to compare the returns from valorizing lignin to phenols and polyols with the production of cellulosic ethanol and chemicals. An organosolv plant, co-located with a eucalyptus kraft pulp mill in Brazil, that sells technical lignin at \$300/t, can produce glucose by enzymatic hydrolysis at a minimum selling price of 9.2c/lb (\$203/t). Investments to valorize the lignin to polyols can generate returns comparable to the production of cellulosic chemicals (Cumulative Cash Ratio between 2 and 4 depending on the plant scale) and are more profitable than producing either ethanol or non-upgraded products. Furthermore, for situations in which cellulolytic enzymes are not available at a competitive cost, this study concluded that eucalyptus pulp companies should prioritize their investments in the valorization of lignin to increase their odds of being competitive with sucrose produced by the sugarcane industry. (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 Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 16/23647-8 - Assessment of design and process integration methodologies considering the emerging design paradigm for forest products sector transformation
Grantee:Adriano Pinto Mariano
Support Opportunities: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 16/19614-7 - Lignocellulosic sugar production in biorefineries attached to Kraft mills eucalyptus pulp: technical and economic analysis and methodology for selection of markets
Grantee:Larissa Braga Dornelles
Support Opportunities: Scholarships in Brazil - Master