(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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