Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/122782
Author(s): Manuel Fonseca Almeida
Joana Dias
Conceição Alvim Ferraz
Sara L. Pardilhó
Joab V. Silva
Title: Sweet Potato Bioethanol Upgrade Using Organic and Inorganic Dehydrating Agents
Issue Date: 2019-03
Abstract: Glycerol, ethylene glycol, and quicklime were used as alternative dehydrating agents to obtain anhydrous bioethanol from sweet potato. The assay conditions were standardized using high bioethanol grades. For organic reagents, three volumetric ratios were studied whereas for quicklime, five concentrations were evaluated. Quicklime led to the highest bioethanol purity of 99.4 degrees GL, followed by glycerol and ethylene glycol, reaching 96.9 and 96.6 degrees GL, respectively. Glycerol and ethylene glycol were reused for 4 cycles with negligible loss of efficiency; however, the yield decreased by up to 8 %.
URI: https://hdl.handle.net/10216/122782
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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