1. At a concentration of 0.1% by volume, 508 MM was able to transform a solid, pasty paraffin sludge tank bottom residue to a consistency of axle grease. The tank bottom residue had the following physical analysis: 80% paraffin, 5% oil, 10% solids (rust and dirt) and 5% water. Malcera 508MM product was mixed into the sludge at 25°C. After the residue was thoroughly mixed, approximately one volume of cutter stock was added to one volume of the residue and stirred for 15 minutes at 15ºC.At the end of the mixing period 100ml of the blend was put into a centrifuge tube and a spinout with a tablet0p centrifuge carried out. The results observed were three layers: 1 = 85% (85ml) of oil and paraffin, 2 = 10% (10ml) of rust and dirt with the solids having a grayish color, 3 = 5% (5ml) of water. No rag layer was observed between the water and oil thus indicating a B.S.&W of 0.00%. Further tests at elevated temperatures (60-70°) showed the mixing time is reduced to 2/3 minutes. 2. Recently a tank cleaning company in Houston was able to obtain a final B.S.&W of 0.0% for the recovered oil. They also found that the product leads to extremely clean solids. The tank cleaner stated that the solids look like pure table salt. 3. Samples from a 25,000 Bbls slop oil tank were taken at 4 feet, 8 feet and 14 feet. The 3 samples were put in a 4000 ml beaker and 2000 ml of water was added and the contents stirred. This mixture of slop oil and water was heated whilst stirring to 158°F (70°C). 1.84 ml of Malcera 508-MM was then added and the mixture was allowed to stir for one hour at 158°F (70°C). After 30 minutes of stirring 500 ml of diesel was added and the stirring and heating continued for a further 30 minutes. At the end of the hour the heat and stirring were stopped. The beaker with the mixture of slop oil, water, diesel and chemicals was left to reach ambient temperature.
The starting slop oil had an initial B.S.& W. of 28%. The final recovered oil plus diesel had a B.S.& W. of <0.0%. |
