Perspectives on the integration of a supercritical fluid extraction plant to a sugarcane biorefinery: thermo-economical evaluation of CO2 recycle systems

Author(s)

Albarelli, Juliana Q. ; Santos, Diego T. ; Cocero, Maria Jose ; Meireles, Maria Angela A.

• Document type: Journal article
• Source: FOOD SCIENCE AND TECHNOLOGY; v. 38, n. 1, p. 6-pg., 2018-01-01.

Abstract

In the present study, the software Aspen Plus. was used to analyse two different systems for CO2 recycle in a SFE process for extraction of more polar compounds using ethanol as co-solvent, the most common co-solvent used due to its environment-friendly nature. The extraction process of beta-ecdysone from Brazilian ginseng roots was considered as example in the computational simulations. The first CO2 recycle system, named Recycle A, considered the compression of the CO2 separated in the second flash to the recycle pressure assumed at the first flash tank, its cooling to 25 degrees C and recirculation, while the second recycle system, named Recycle B, considered the cooling and pumping of the CO2 separated in the second flash, its heating to 25 degrees C and recirculation. The best techno-economic condition to operate the recycling step would be using Recycle A at 40 bar and 30 degrees C considering a stand-alone SFE process; and using Recycle B at 40 bar and 40 degrees C, considering this process in close proximity of a hypothetical sugarcane biorefinery. Therefore, these results suggest that the selection where would be located the SFE plant should be taken into account during the first steps of the process design. (AU)

• 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
• FAPESP's process: 10/16485-5 - Technical and economic evaluation of the integration of sustainable processes for a better use of brazilian ginseng (Pfaffia glomerata)
• Grantee: Diego Tresinari dos Santos
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 12/19304-7 - Brazilian ginseng biorefinery: simulation and multi-objective optimization
• Grantee: Diego Tresinari dos Santos
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• 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: 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: 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