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Member

Join Date: Oct 2010
Location: Moscow
Posts: 8

Compressor Oil and Has Separation and Testing of Oil Flash Temperature After Use

03/10/2012 1:43 AM

We are Running a new compressor using lubrication oil mobil glygoyle 22 and with output gas temperature 104 deg. centigrade. We collected oil samples after the gas and oil separator tank after 72h running. The test for Flash temperature reduced to below 30 deg. centigrade. The Flash point tempearture of unused oil is 229 deg. centigrade.

Can anybody inform , what may be happening either in our sampling methods, point of oil collection, at which temperature to collect the oil (Running or standstil compressor), period after collection to testing. How to degas the oil , as this seems that the gas remain mixed with oil etc. I will appreciate any contribution.

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Join Date: Nov 2010
Posts: 88
Good Answers: 4
#1

Re: Compressor Oil and Has Separation and Testing of Oil Flash Temperature After Use

03/11/2012 3:57 AM

The flash point of the lube oil is governed by the absorption characteristics of the lube oil, the temperature and pressure of the oil and the composition of the gas being compressed. Operate the gas separator at the highest temperature and lowest pressure consistent with the manufacturers design.

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Join Date: Oct 2010
Location: Moscow
Posts: 8
#2

Re: Compressor Oil and Has Separation and Testing of Oil Flash Temperature After Use

03/11/2012 6:58 AM

Thank you Daveset for your contribution.

We have 85 deg. c. for the incoming oil to the Compressor, 105 deg. c. for the mixture of oil and gas out of the Compressor and about 4 bars for the compressed gas out of of the separator . The 85 deg. c value is a very high value for the given oil from the manufacturers oil working parameters. We are thinking, that this should assist. We have just collected more samples after this adjustments and hope that we shall get better results. May the point of sampling have a significant effect to the flash point determination?

Thank you all again for your contribution.

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