中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Synthesis of biodiesel from soybean oil by coupling catalysis with subcritical methanol
作者: Yin, Jian-Zhong1;  Xiao, Min1;  Wang, Ai-Qin2;  Xiu, Zhi-Long3
关键词: Biodiesel ;  Transesterification ;  Subcritical methanol ;  Supercritical methanol ;  Soybean oil
刊名: ENERGY CONVERSION AND MANAGEMENT
发表日期: 2008-12-01
DOI: 10.1016/j.enconman.2008.08.008
卷: 49, 期:12, 页:3512-3516
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Thermodynamics ;  Energy & Fuels ;  Mechanics ;  Physics, Nuclear
研究领域[WOS]: Thermodynamics ;  Energy & Fuels ;  Mechanics ;  Physics
英文摘要: Biodiesel synthesis from soybean oil and methanol was investigated under supercritical and subcritical conditions. Under the supercritical conditions, the maximum methyl ester yield exceeded 98% when the molar ratio of methanol to oil was 42:1 and the reaction temperature ranged from 260 degrees C to 350 degrees C. In order to decrease the operational temperature and pressures and to increase the conversion efficiency of methanol, first co-solvent was added to the reaction mixture to improve the reaction process, and then a novel idea was presented in which catalysis and supercritical effect were coupled together. Thus, with 2.5 wt% hexane, temperature of 300 degrees C, methanol to oil ratio of 42, a 85.5% conversion is observed in 30 min, while a 62.2% conversion is observed without hexane in the same condition; with less carbon dioxide, temperature of 300 degrees C, methanol to oil ratio of 42, a 91.6% conversion is observed in 20 min, while a 51.4% conversion is observed without carbon dioxide in the same condition; With only a little amount of potassium hydroxide as the catalyst (KOH/oil = 0.1 wt%), a 98% yield of methyl esters was obtained in 10 min at a reaction temperature of 160 degrees C and the molar ratio (methanol/oil) of 24:1. In contrast, above 1 wt% of catalyst is required in the conventional alkali-catalyzed method: while only 6% yield of methyl ester was obtained at 260 degrees C (corresponding to subcritical conditions) without the catalyst.
关键词[WOS]: SUPERCRITICAL-FLUID EXTRACTION ;  SEED OIL ;  TRANSESTERIFICATION ;  COSOLVENT ;  LIPASE ;  FUEL
语种: 英语
WOS记录号: WOS:000261307900015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141121
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Dalian Univ Technol, Sch Environm & Biol Sci & Technol, Dalian 116024, Peoples R China

Recommended Citation:
Yin, Jian-Zhong,Xiao, Min,Wang, Ai-Qin,et al. Synthesis of biodiesel from soybean oil by coupling catalysis with subcritical methanol[J]. ENERGY CONVERSION AND MANAGEMENT,2008,49(12):3512-3516.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Yin, Jian-Zhong]'s Articles
 [Xiao, Min]'s Articles
 [Wang, Ai-Qin]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Yin, Jian-Zhong]‘s Articles
 [Xiao, Min]‘s Articles
 [Wang, Ai-Qin]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Powered by CSpace