|
| The comparison of physical
properties between DME and similar fuels |
|
| Name of Products |
DME |
Methane
(LNG) |
Propane |
Methanol |
Gas
oil |
| formula |
CH3OCH3 |
CH4 |
C3H8 |
CH3OH |
- |
| boiling point(°C) |
-25.1 |
-161.5 |
-42 |
64.8 |
180~360 |
| liquid density(g/cm3(@20°C)) |
0.67 |
- |
0.49 |
0.79 |
0.84 |
| gas specific gravity |
1.59 |
0.55 |
1.52 |
- |
- |
| saturated steam pressure(atm,25°C) |
6.1 |
- |
9.3 |
- |
- |
| ignition temperature(°C) |
350 |
632 |
504 |
470 |
250 |
| explosion limit(%) |
3.4~17 |
5~15 |
2.1~9.4 |
5.5~36 |
0.6~7.5 |
| cetane rating |
55~60 |
0 |
5 |
5 |
40~55 |
| low heat value(kcal/kg)
|
6,900 |
12,000 |
11,100 |
5,040 |
10,200 |
|
| (R&D brochure of 5t/d pilot plant) |
 |
|
