| A continuous process for biodiesel production in a fixed bed reactor packed with cation-exchange resin as heterogeneous catalyst. | |
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MedLine Citation:
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PMID: 21078550 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Continuous esterification of free fatty acids (FFA) from acidified oil with methanol was carried out with NKC-9 cation-exchange resin in a fixed bed reactor with an internal diameter of 25 mm and a height of 450 mm to produce biodiesel. The results showed that the FFA conversion increased with increases in methanol/oil mass ratio, reaction temperature and catalyst bed height, whereas decreased with increases in initial water content in feedstock and feed flow rate. The FFA conversion kept over 98.0% during 500 h of continuous esterification processes under 2.8:1 methanol to oleic acid mass ratio, 44.0 cm catalyst bed height, 0.62 ml/min feed flow rate and 65°C reaction temperature, showing a much high conversion and operational stability. Furthermore, the loss of sulfonic acid groups from NKC-9 resin into the production was not found during continuous esterification. In sum, NKC-9 resin shows the potential commercial applications to esterification of FFA. |
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Authors:
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Yaohui Feng; Aiqing Zhang; Jianxin Li; Benqiao He |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-28 |
Journal Detail:
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Title: Bioresource technology Volume: 102 ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-10 Completed Date: - 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: 3607-9 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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The State Key Lab of Hollow Fiber Membrane Materials and Processes, School of Material and Chemical Engineering, Tianjin Polytechnic University, Tianjin, PR China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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