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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.)

Thermo-economic evaluation of a new approach to extract sugarcane wax integrated to a first and second generation biorefinery

Full text
Author(s):
Albarelli, Juliana Q. [1] ; Santos, Diego T. [1] ; Meireles, M. Angela A. [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn, LASEFI DEA FEA, Cidade Univ ZeferinoVaz, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: BIOMASS & BIOENERGY; v. 119, p. 69-74, DEC 2018.
Web of Science Citations: 0
Abstract

This study evaluates the integration of supercritical fluid extraction process to obtain sugarcane wax extract from the sugarcane filter cake residue. This cake is eliminated from the decantation process of sugarcane juice in the sugarcane biorefinery and it is generally used as a fertilizer. From this cake a lipophilic material, containing long-chain fatty alcohols and phytosterols, can be selectively recovered by means of the use of supercritical CO2 as extracting solvent. Aspen Plus (R) software was used to simulate the sugarcane biorefinery producing electricity, conventional and cellulosic ethanol and wax extract. A thermal-economic model was developed in Matlab software to perform energy integration and the economic analysis of this novel biorefinery concept. The results showed that by increasing temperature and pressure of the extraction process it is possible to produce more wax extract at an overall lower investment as lower extraction time is necessary, decreasing the number of extractors working in parallel. The integration of the extraction process to the sugarcane biorefinery had no impact on the overall ethanol production and had small impact on the electricity available for sale to the grid, decreasing only around 3% the net electricity. Payback time is strongly reduced by this integration strategy, decreasing 74% when the best configuration for SFE is adopted. The selling price for the wax extract strongly influences on the economic viability of this process, indicating that the integration of this extraction process to the sugarcane biorefinery is only economic attractive if the wax extract selling price is higher than 26.5 USD/kg. (AU)

FAPESP's process: 15/13299-0 - From seeds to final products: feasible manufacturing routes of annatto applying process intensification and process integration
Grantee:Maria Angela de Almeida Meireles Petenate
Support Opportunities: Regular Research Grants
FAPESP's process: 15/06954-1 - Development of an energetic self-sufficient and economically viable integrated sub/supercritical fluid-based biorefinery by the aid of computational modeling and simulation
Grantee:Juliana Queiroz Albarelli
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 13/18114-2 - Integral utilization of biomasses using sub/supercritical fluids: environmental, energetic and economic assessment of technological scenarios
Grantee:Juliana Queiroz Albarelli
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 12/10685-8 - Combination and coupling of processes for the production and encapsulation of value-added vegetal extracts: technical and economic evaluation
Grantee:Maria Angela de Almeida Meireles Petenate
Support Opportunities: Regular Research Grants