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(Dimethyl Ether) 1. ()
(Dimethyl Ether: DME) C2H6O (LPG) -25oC
2.
2.1 2
1) ()
1 (Indirect DME Synthesis) (Methanol Dehydration)
2)
2 (Indirect DME Synthesis)
(Methanol Dehydration)
2.2
(CO + H2)
(CH3OH)
DME + (CH3OCH3 + H2O )
(CO + H2)
DME + (CH3OCH3 + CO2)
-2-
2.3 ( LPG) 62 LPG 75-90 LPG 3.
2
3.1 LPG LPG 20
3.2
1) () 25
2) LPG 25
3) 4.
1) 2)
LPG 3)
-3-
5.
2 International Energy Agency (IEA) Japan Industrial Standard (JIS)
1
IEA1) JIS2)
(DME purity), (%wt) 99.6 99.0 (Methanol content), (%wt) 0.05 1.0 (Water content), (%wt) 0.01 1.0 (Methyl ethyl ethanol content), (%wt)
0.2 -
(Higher fatty alcohol), (%wt)
0.05 -
(Higher fatty ether), (% wt)
0.05 -
(Ketone Content), (% wt) 0.05 -
(Lubricant, viscosity), (% wt) 0.2 - (Formic acid content), (% wt) - 0.01 (Carbondioxide content), (% wt)
- 0.1
(Sulphur content), (%wt) -
(Remaining residuals), / (mg/kg) - -3)
(Vapor pressure) 40oC, (MPa) - 1.05 1) International Energy Agency 2) Japan Industrial Standard 3)
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