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Ganga D
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Join Date: Oct 2007
Posts: 3

Butadiene Level Transmitter leg filled with NMP

10/24/2007 12:18 AM

While measuring butadiene level in a vessel, the the transmitter legs are filled with solvent NMP( N-methylpyrrolidene). Density of NMP is 1.03 gm/CC while that of Butadiene is 0.638 gm/cc.

My question is , will it affect the level measurement accuracy.
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Pathfinder Tags: Butadine level measurement
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
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#1

Re: Butadiene Level Transmitter leg filled with NMP

10/24/2007 4:02 AM

What sort of transmitter? Pressure? Differential pressure?

What are the heights of the legs compared to the level in the vessel?

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Doggoneit
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Join Date: Oct 2007
Location: Canning Vale Western Australia.
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#2

Re: Butadiene Level Transmitter leg filled with NMP

10/24/2007 11:10 PM

Difference in density must be taken into account mathmatically when working on the differnce in hieght. As long as this is done accuracy should not be a problem. Other than that fill your legs with Butadiene the same as in the vessel then SG is not relivent.

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