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From: AP. Maymi
Category: Process
Date: 14 Jan 2005
We are experiencing higher than normal ammonias (and amine) in our WWTP outfall. AFter sampling all streams feeding the SW system, found our coker sour water had high ammonias and high amine (we called amine, could be a higher MW N2 molecule). GC method was used for the analysis. Suspect a particular crude (which was treated with an H2S scavenger), but seems strange that the impact on the Crude unit site WWTP (different WWTP; coker & cd unit approx 3-5 miles apart) was not as bad as in our case. We checked our oil soluble filmer injection rates (are normal), vendor is checking sample of filmer just in case, checking sludge material injected to coke drum,, etc.) We are puzzled by this, does anybody has any idea of what could be happenning? Where are the N2 molecules comming from?