Page 168 - Biofuels Refining and Performance

Fuel and Physical Properties of Biodiesel Components 151

a
TABLE 5.1 Properties of Fatty Acids and Esters (Continued)
Trivial (systematic) MP c BP c,d HG , f
name; acronym b ( C) ( C) Cetane no. Viscosity e (kcal/mol)
g
Methyl ester 39 442–3 747 86.9 (92.1) ; 4.74 j 2859
101 i
h
Ethyl ester 31–33.4 199 10 76.8 ; 97.7 i 3012
h
Propyl ester 69.9 ; 90.9 i
Isopropyl ester 96.5 i
h
Butyl ester 27.5 343 80.1 ; 92.5 i
2-Butyl ester 97.5 i
Isobutyl ester 99.3 i
Palmitoleic (9(Z)-
Hexadecanoic); 16:1
Methyl ester 51.0 i 2521
Oleic (9(Z)- 16 286 100 46.1 h 2657.4 (25 )
Octadecanoic); 18:1
h
j
Methyl ester 20 218.5 20 55 ; 59.3 i 3.73 ; 4.51 k 2828
h
Ethyl ester 216–7 151 53.9 ; 67.8 i 5.50 (25 ) j
h
Propyl ester 55.7 ; 58.8 i
Isopropyl ester 86.6 i
h
Butyl ester 59.8 ; 61.6 i
2-Butyl ester 71.9 i
Isobutyl ester 59.6 i
Linoleic (9Z,12Z- 5 229–30 16 31.4 h
Octadecadienoic); 18:2
h
j
Methyl ester 35 215 20 42.2 ; 38.2 i 3.05 ; 3.65 k 2794
h
Ethyl ester 270–5 180 37.1 ; 39.6 i
h
Propyl ester 40.6 ; 44.0 i
h
Butyl ester 41.6 ; 53.5 i
Linolenic (9Z,12Z,15Z- 11 230–2 17 20.4 h
Octadecatrienoic); 18:3
Methyl ester
j
g
Ethyl ester 57/–52 109 0.018 20.6 ; 22.7 i 2.65 ; 3.14 k 2750
Propyl ester 174 2.5 26.7 h
Butyl ester 26.8 h
Ricinoleic (12-Hydroxy- 5.5 245 10
9Z-octadecenoic);
18:1, 12-OH
Methyl ester 225–7 15 15.44 k
Erucic (13Z- 33–4 265 15
Docosenoic); 22:1
Methyl ester 221–2 5 5.91 j 3454
Ethyl ester 229–30 5
a
Adapted from Ref. [4].
b
The numbers denote the number of carbons and double bonds. For example, in oleic acid,
18:1 stands for 18 carbons and 1 double bond.
c
Melting point and boiling point data are from Refs. [5] and [6].
d
Superscripts denote pressure (mm Hg) at which the boiling point was determined.
e
Viscosity values determined at 40 C, unless indicated otherwise.
f
HG values are from Refs. [3] and [5].
g
Number in parentheses indicates purity (%) of the material used for CN determination as
given in Ref. [7].
h
Ref. [8].
i
Ref. [9].
j
Dynamic viscosity (mPa
s cP), Ref. [10].
k 2
Kinematic viscosity (mm /s cSt), Ref. [11].