2017
DOI: 10.1590/1678-457x.33516
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Abstract: In the present study, the software Aspen Plus  was used to analyse two different systems for CO 2 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 β-ecdysone from Brazilian ginseng roots was considered as example in the computational simulations. The first CO 2 recycle system, named Recycle A, considered the compression of the CO 2 separated in the second flash to the r… Show more

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Cited by 12 publications
(4 citation statements)
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References 11 publications
(12 reference statements)
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“…In addition, the life-cycle CF comprises the emissions from the dairy farm (upstream) and distribution center (downstream) [104]. The boundaries are set as [113]; baseline of BM: 1.1 kg CO 2 /kg BMP [45]; SFE CO 2 reuse 95% [114]; SFE CO 2 /DME power cost estimation 100 kWh/kg extract [115].…”
Section: Life-cycle Accessment Methods Of Carbon Footprintmentioning
confidence: 99%
“…In addition, the life-cycle CF comprises the emissions from the dairy farm (upstream) and distribution center (downstream) [104]. The boundaries are set as [113]; baseline of BM: 1.1 kg CO 2 /kg BMP [45]; SFE CO 2 reuse 95% [114]; SFE CO 2 /DME power cost estimation 100 kWh/kg extract [115].…”
Section: Life-cycle Accessment Methods Of Carbon Footprintmentioning
confidence: 99%
“…The evaporator was 6 modelled as a set of heat exchangers and flash tanks. A 5% loss of ethanol was assumed between the evaporator and the reuse of ethanol at an inlet temperature of 25°C [17]. The thermodynamic method package "Wilson" was selected and used in estimating the process stream properties needed to solve the steady-state mass and energy balance.…”
Section: Process Simulationmentioning
confidence: 99%
“…Besides that, the integration of SFE into existing biorefinery concepts can be translated into energy efficiency savings. Albarello et al [122] had displayed better economical outcomes when SFE was integrated into a sugarcane biorefinery emphasized in CO 2 recycle streams. The excess thermal energy available after CO 2 cooling before recycling can be thermally integrated to eliminate the hot utility required in the CO 2 recycle stream to reduce the utility cost required.…”
Section: Considerations In Upscaling Sfe Technologymentioning
confidence: 99%