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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.)

Process Design and Technoeconomic Assessment of the Extraction of Levulinic Acid from Biomass Hydrolysate Using n-Butyl Acetate, Hexane, and 2-Methyltetrahydrofuran

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Leal Silva, Jean F. [1] ; Maciel Filho, Rubens [1, 2] ; Wolf Maciel, Maria R. [2]
Total Authors: 3
[1] Univ Campinas FEQ UNICAMP, Sch Chem Engn, BR-13083852 Campinas, SP - Brazil
[2] Wolf Maciel, Maria R., Univ Campinas FEQ UNICAMP, Sch Chem Engn, BR-13083852 Campinas, SP, Brazil.Leal Silva, Jean F., Univ Campinas FEQ UNICAMP, Sch Chem Engn, BR-13083852 Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 59, n. 23, p. 11031-11041, JUN 10 2020.
Web of Science Citations: 0

Levulinic acid, a chemical produced during the hydrolysis of biomass, has various applications in the chemical and fuel markets that are unexplored because of several problems related to its large-scale production. Recovery of levulinic acid is challenging because of its low volatility, the presence of other chemicals in the biomass hydrolysate, and the desire to recycle the catalyst. In this work, the recovery cost of levulinic acid from biomass hydrolysate was evaluated and optimized in a complete recovery process, including the evaporation of hydrolysate, extraction, and solvent recycling. Three solvents with different classifications in solvent selection guides were considered: n-butyl acetate, hexane, and 2-methyltetrahydrofuran. In the optimized scenarios, the recovery cost using 2-methyltetrahydrofuran was \$0.156 kg(-1) (17% lower than that of n-butyl acetate and 32% lower than that of hexane). The simulation results, based on a group contribution method, present a methodology suitable for the early-stage assessment of separation processes to recover renewable chemicals in biorefineries. (AU)

FAPESP's process: 15/20630-4 - Biorefinery development integrated to a bioethanol sugar cane plant with zero CO2 emission: routes to convert renewable resources to bio-products and bio-electricity
Grantee:Rubens Maciel Filho
Support type: Research Projects - Thematic Grants
FAPESP's process: 16/10450-1 - Process development for sugarcane conversion to ethyl levulinate: a route for a viable biodiesel additive
Grantee:Jean Felipe Leal Silva
Support type: Scholarships in Brazil - Master