| Treatment of glycerol phase formed by biodiesel production. | |
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MedLine Citation:
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PMID: 20074939 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Glycerol is a by-product of biodiesel produced by transesterification and is contained in the glycerol phase together with many other materials such as soaps, remaining catalyst, water, and esters formed during the process. The content of glycerol is approximately 30-60 wt.%. In this paper, treatments of the glycerol phase to obtain glycerol with a purity of 86 wt.% (without distillation) and a mixture of fatty acids with esters (1:1) or only a mixture of fatty acids with a purity of 99 wt.% are presented. The treatment was carried out by removing of alkaline substances and esters. Fatty acids were produced by saponification of the remaining esters and subsequent neutralization of alkaline substances by phosphoric, sulfuric, hydrochloric, or acetic acids. Salts are by-products and, in the case of phosphoric acid can be used as potash-phosphate fertilizer. The process of treatment is easy and environmentally friendly, because no special chemicals or equipment are required and all products are utilizable. |
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Authors:
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Martin H?jek; Frantisek Skopal |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-01-13 |
Journal Detail:
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Title: Bioresource technology Volume: 101 ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-02-03 Completed Date: 2010-04-13 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: England |
Other Details:
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Languages: eng Pagination: 3242-5 Citation Subset: IM |
Copyright Information:
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Copyright 2009 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentsk? 573, 532 10 Pardubice, Czech Republic. martin.hajek2@upce.cz |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acids
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chemistry Biofuels* Chemical Precipitation Esterification Gasoline* Glycerol / isolation & purification* Methanol / chemistry |
| Chemical | |
Reg. No./Substance:
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0/Acids; 0/Biofuels; 0/Gasoline; 56-81-5/Glycerol; 67-56-1/Methanol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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