MULTI-OBJECTIVE OPTIMIZATION OF SUPERCRITICAL WATER GASIFICATION OF LEFTOVER BRAZILIAN GINSENG ROOTS AFTER PHYTOCHEMICAL RECOVERY STEPS

Author(s)

Albarelli, J. Q. ; Mian, A. ; Santos, D. T. ; Ensinas, A. V. ; Marechal, F. ; Meireles, M. A. A.

• Document type: Journal article
• Source: Brazilian Journal of Chemical Engineering; v. 34, n. 3, p. 10-pg., 2017-07-01.

Abstract

The present study aims at studying the supercritical water gasification (SCWG) of leftover Brazilian ginseng roots after phytochemicals extraction for synthetic natural gas (SNG) production, envisioning the development of a promising Brazilian ginseng roots valorization using sub/supercritical fluids in different steps. A multi- objective energetic- economic- environmental optimization of the proposed SCWG process was assessed through the use of computational simulation tools. The results showed that, for a given leftover biomass input of 20MW, a specific cost of 62- 66 USD/MWh of SNG is obtained, which is higher than the average price on the Brazilian market. On the other hand, the production process of SNG from this residue showed to be a promising option, being energetically selfsufficient and environmentally friendly. In order for this alternative process to become more economically attractive we proposed the construction of the SCWG and the sub/supercritical extraction units in the same location, sharing part of the same high- pressure equipment. (AU)

• 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: 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: 09/17234-9 - Obtaining anthocyanins, carotenoids, flavonoids, volatile oils, and tocotrienols by supercritical technology: process parameters and chemical characterization of extracts
• Grantee: Maria Angela de Almeida Meireles Petenate
• Support Opportunities: Regular Research Grants
• 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: 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