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Hydrate Formation (Upstream Or Downstream Pressure)

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RAMAN THE

Chemical
Jul 4, 2021
1
CA
i have a gas expanding thru a control valve ...upstream pressure is 400 psig and downstream is 50 psig
upstream temp is 80 F and downstream is 50 F

At upstream pressure hysys show hydrate formatiion at 56 F

at downstram pressure hysys show hydrate formation at 35 F

What should be considered ...will hydrate form? since downstream temp. 50 F > 35 F so no formation?

which pressure should be considere for analysis?
 
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Recommended for you

given composition, hydrate formation temperature depends from pressure,

see the attached image created with the free online calculator


hydrateformation_oturzg.jpg
 
You need to look at both but from your days it doesn't look like you have a hydrate problem.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
 
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