Screening of membrane technologies in concentration of bitter extracts with simultaneous alcohol recovery: An approach including both economic and environmental issues
- Figueroa Paredes, Danilo Alexander
- Laoretani, Daniela Soledad
- Morero, Betzabet del Valle
- Sánchez, Ramiro Julián
- Iribarren, Oscar Alberto
- Espinosa, Hector Jose Maria
DOIAbstract
In this paper, concentration of a bitter extract with simultaneous recovery of ethanol via either nanofiltration or pervaporation is studied from economic and environmental standpoints. The production of a bitter non-alcoholic beverage requires an extraction plant to produce the bitter extract, and a blending-bottling plant that produces the final product. The processes under study are composed by a feed tank coupled to either a nanofiltration or a pervaporation membrane and operated in batchwise form. While the ethanol contained in the permeate is recycled to the main extraction process, the content of the feed tank at the end of the batch is sent to the bottling plant. There, it is diluted with deionized water to produce 1.1 E + 08 L/year...
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