Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst

	Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst
	Zeng, Dan 1; Li, Ruosong 1; Feng, Mingjun 2; Fang, Tao 1
刊名	applied biochemistry and biotechnology
	2014-10-01
卷号	174 期号:4 页码:1484-1495
关键词	Free fatty acids Esterification Sodium methoxide Supercritical methanol Response surface methodology
英文摘要	an integrated process of supercritical methanol (scm) and sodium methoxide catalyst was developed to produce fatty acid methyl esters (fames) via continuous esterification from crude biodiesel. the crude biodiesel with high free fatty acid (ffa) content must be refined to reduce the acid value (av) for meeting the quality standards. the process parameters were studied by box-behnken design (bbd) of response surface methodology (rsm). the experimental results revealed that the av of crude biodiesel decreased from 18.66 to 0.55 mg koh g(-1) at the reaction conditions of 350 a degrees c, 0.5 % amount of sodium methoxide catalyst, and 10 mpa. temperature shows the most significant effect on the esterification, followed by pressure and amount of sodium methoxide catalyst. this integrated process proved to be a potential route to refine the crude biodiesel because of its continuity, high efficiency, and less energy consumption with relatively moderate reaction conditions compared with conventional methods.
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	biochemistry & molecular biology ; biotechnology & applied microbiology
研究领域[WOS]	biochemistry & molecular biology ; biotechnology & applied microbiology
关键词[WOS]	vegetable-oil ; rapeseed oil ; cooking oil ; transesterification ; fuel ; optimization ; energy
收录类别	SCI
语种	英语
WOS记录号	WOS:000342494300021
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/143193]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Dept Chem Engn, Xian 710049, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Dan,Li, Ruosong,Feng, Mingjun,et al. Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst[J]. applied biochemistry and biotechnology,2014,174(4):1484-1495.
APA	Zeng, Dan,Li, Ruosong,Feng, Mingjun,&Fang, Tao.(2014).Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst.applied biochemistry and biotechnology,174(4),1484-1495.
MLA	Zeng, Dan,et al."Continuous Esterification of Free Fatty Acids in Crude Biodiesel by an Integrated Process of Supercritical Methanol and Sodium Methoxide Catalyst".applied biochemistry and biotechnology 174.4(2014):1484-1495.