Experimental vapor pressures (from 1 Pa to 100 kPa) of six saturated Fatty Acid Methyl Esters (FAMEs): Methyl hexanoate, methyl octanoate, methyl decanoate, methyl dodecanoate, methyl tetradecanoate and methyl hexadecanoate

2016 ◽  
Vol 102 ◽  
pp. 270-275 ◽  
Author(s):  
Lakhdar Sahraoui ◽  
Kamel Khimeche ◽  
Abdallah Dahmani ◽  
Ilham Mokbel ◽  
Jacques Jose
Keyword(s):  
Fatty Acid ◽  
Saturated Fatty Acid ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Vapor Pressures ◽  
Methyl Octanoate ◽  
Methyl Hexanoate ◽  
Acid Methyl ◽  
Methyl Dodecanoate ◽  
Methyl Decanoate

Mechanism of Flow Properties for Biodiesel Blends at Low Temperature

2013 ◽  
Vol 662 ◽  
pp. 490-497
Author(s):  
Yong Cui ◽  
Yin Nan Yuan ◽  
Xiu Chen ◽  
Yong Bin Lai
Keyword(s):  
Fatty Acid ◽  
Saturated Fatty Acid ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Cold Filter Plugging Point ◽  
Flow Properties ◽  
Straight Chain ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Acid Methyl

The chemical composition of biodiesel was analyzed by gas chromatography-mass spectrometry. The cold filter plugging point of biodiesel was measured according to GB/T 20828-2007. The cold flow properties of biodiesel were investigated on the basis of the crystallization theory, including chemical composition and molecular structure. Biodiesel might be considered a pseudobinary mixture, namely, high-melting-point saturated fatty acid methyl esters and low–melting-point unsaturated ones. Bilayer crystal structure of biodiesel was founded. Bilayer structure with headgroups aligned next to each other inside the crystal and away from nonpolar bulk liquid was large platelet lamellae. The results showed that biodiesel was mainly composed of saturated fatty acid methyl esters (C14:0～C24:0 ) and unsaturated ones(C16:1～C22:1、C18:2 and C18:3 ). The cold flow properties for biodiesel were determined mainly by the amount and molecular structure of saturated fatty acid methyl esters. The long-straight-chain saturated fatty acid methyl esters tend to have relatively poor cold flow properties. The cold flow properties worsen with increasing the amount and carbon chain length of straight-chain saturated fatty acid methyl esters. The ways of adjusting biodiesel composition and treating with depression of cold filter plugging point were given; they could improve cold flow properties.

Unusually low pour point of fatty acid methyl esters with low saturated fatty acid content

2016 ◽  
Vol 118 (10) ◽  
pp. 1486-1494 ◽  
Author(s):  
Jieyu Nie ◽  
Sunmin Wang ◽  
Shahram Emami ◽  
Kevin Falk ◽  
Jianheng Shen ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Saturated Fatty Acid ◽  
Acid Content ◽  
Pour Point ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Fatty Acid Content ◽  
Acid Methyl ◽  
Saturated Fatty Acid Content
Sign in / Sign up

Export Citation Format

Share Document