Chinese | English
XTBG OpenIR  > 热带植物资源可持续利用重点实验室特色文献  > 小桐子相关文献
THE COMPLETION OF ESTERIFICATION OF FREE FATTY ACIDS IN ZANTHOXYLUM BUNGEANUM SEED OIL WITH ETHANOL
Zhang, J. H.
2014
Source PublicationInternational Journal of Green Energy
ISSN1543-5075
Volume11Issue:8Pages:822-832
AbstractIn this work, the esterification of free fatty acids (FFA) in Zanthoxylum bungeanum seed oil (ZSO) with ethanol was performed and the effects of ethanol-to-oil molar ratio (8:1-32:1), catalyst amount (0.3-3.5% wt. of oil), reaction temperature (30-65 degrees C), and reaction time (20-180 min) on the esterification of FFA were investigated. The acid value could not be reduced from beyond 40 mg KOH/g to less than 2 mg KOH/g by two-step sulfuric acid-catalyzed esterification with ethanol. Our results revealed that water formation during esterification was not a crucial factor inhibiting the completion of esterification. A novel technique to reduce acid value from above 40 mg KOH/g to less than 2 mg KOH/g was developed by using a second-step esterification with methanol. During the second-step esterification with methanol, some fatty acid ethyl esters were transformed into fatty acid methyl esters, which was confirmed by H-1 NMR.
Document Type期刊论文
Identifierhttps://ir.xtbg.ac.cn/handle/353005/7202
Collection热带植物资源可持续利用重点实验室特色文献_小桐子相关文献
Recommended Citation
GB/T 7714		 Zhang, J. H.. THE COMPLETION OF ESTERIFICATION OF FREE FATTY ACIDS IN ZANTHOXYLUM BUNGEANUM SEED OIL WITH ETHANOL[J]. International Journal of Green Energy,2014,11(8):822-832.
APA Zhang, J. H..(2014).THE COMPLETION OF ESTERIFICATION OF FREE FATTY ACIDS IN ZANTHOXYLUM BUNGEANUM SEED OIL WITH ETHANOL.International Journal of Green Energy,11(8),822-832.
MLA Zhang, J. H.."THE COMPLETION OF ESTERIFICATION OF FREE FATTY ACIDS IN ZANTHOXYLUM BUNGEANUM SEED OIL WITH ETHANOL".International Journal of Green Energy 11.8(2014):822-832.
Files in This Item: Download All
File Name/Size DocType Version Access License
THE COMPLETION OF ES（313KB） 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, J. H.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, J. H.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, J. H.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: THE COMPLETION OF ESTERIFICATION OF FREE FATTY ACIDS IN ZANTHOXYLUM BUNGEANUM SEED OIL WITH ETHANOL.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.