Hydrates and Glycols - NTNU
Hydrates and Glycols - NTNU
Hydrates and Glycols - NTNU
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Thermodynamic Hydrate inhibitors<br />
•MEG (Mono Ethylene Glycol)<br />
inhibits hydrate formation<br />
–Freezing point lowered<br />
Pressure [bar]<br />
450<br />
400<br />
350<br />
300<br />
250<br />
200<br />
150<br />
100<br />
50<br />
<strong>Hydrates</strong><br />
M E G<br />
No inhib<br />
20% MEG<br />
40% MEG<br />
No hydrates<br />
0<br />
0 5 10 15 20 25 30<br />
Temperature [C]<br />
Inhibitor<br />
Water<br />
MeOH<br />
MEG<br />
TEG<br />
Density<br />
1.0<br />
0.79<br />
1.11<br />
1.12<br />
Viscosity (cp-25 o C)<br />
0.89<br />
0.5<br />
18<br />
36<br />
Freezing Point<br />
0 o C<br />
-94 o C<br />
-13 o C<br />
-5 o C<br />
Boiling Point<br />
100 o C<br />
65 o C<br />
198 o C<br />
278 o C<br />
Classification: Internal 2010-08-25
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