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Posted by Rick on November 16, 2003 at 14:29:17:
In Reply to: oil in the main gas line posted by ZAIBI on November 08, 2003 at 03:20:05:
: I WORK IN A THERMAL POWER PLANT ,SOME DAYS AGO WHEN OUR BOILERS WERE IN NORMAL OPERATION(WE HAVE TWO BOILERS ONE OF 60 TON/HR STEAM GENERATION CAPACITY AND OTHERR OF 40T/HR) THE GAS PRESSURE BEGAIN TO DROP AND IT BECAME 0.5 BAR FROM 2.0 BAR. AS A RESULT OUR BOILERS BURNERS WENT OUT OF FIRING WHICH RESULTED IN POWER HOUSE SHUT DOWN. WHEN WE INVESTIGATED THE REASON , WE LEARNED THAT THERE WAS OIL IN OUR MAIN GAS PIPE LINE. I WAS VERY SURPRISE WITH THIS SITUATION. I HAVE NOT SEEN OIL IN THE MAIN GAS PIPE LINE BEFORE THIS TIME.
: CAN ANY BODY EXPLAIN THAT FROM WHERE THIS OIL HAS COME IN THE MAIN GAS PIPE LINE? AND WE SHOULD TAKE WHAT MEASUREMENTS?
: THANKS AND REGTARDS FOR SUGGESTIOPNS.....
It is most likely not oil but probably triethylene glycol. This is a moisture absorbant added a the gas compression station. If they over feed it will precipitate out of the gas and usually occurs during periods of high flow rates in the piping.
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