Sweet Potato Bioethanol Upgrade Using Organic and Inorganic Dehydrating Agents

• Type: Article in International Scientific Journal
• Date: 2019-03

Authors

Manuel F. Almeida (Author) FEUP; Joana Dias (Author) FEUP; Conceição Alvim Ferraz (Author) FEUP; Sara Pardilhó (Author) FEUP; Joab V. Silva (Author) Other

Journal

Title: Chemical Engineering and Technology

Vol. 42 No. 3

Pages: 560-565

ISSN: 0930-7516

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

INSPEC

Associated Projects

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Other information

Authenticus ID: P-00Q-5ZP

DOI: 10.1002/ceat.201800353

Abstract (EN): 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 %.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6