Oxygen Removal Rates of Alken® Treatment J-677 vs. Other Chemicals

4. Cyclohexylamine

Alken® Treatment J-671

5. Diethylaminoethanol (DEAE)

Alken® Treatment J-673

The tests were performed in the laboratory using a 4.5-liter reaction vessel containing distilled water saturated with dissolved oxygen and 10 ppm carbon dioxide. A 5-gallon batch of distilled water was saturated with oxygen by bubbling air through a fritted dispersion tube. The carbon dioxide was naturally present in the distilled water.

The 4.5-liter container was filled up with the oxygen-saturated water containing 10 ppm carbon dioxide. The water temperature was adjusted at 70.degree..+-.2.degree. F. The level of dissolved oxygen was determined by means of an Orion pH meter, model SA 520 (a commercially available pH meter) equipped with oxygen selective membrane electrode, model 97-08.99, fitted with BOD bottle-top attachment . After calibration, the oxygen probe was inserted into the top of the container.

The first test (#2) was conducted by injecting 36 ppm, N,N-diethylhydroxylamine (DEHA). The subsequent decrease in oxygen concentration was measured as a function of time. Similar experiments were performed by using other neutralizing amines, and with various formulas from Alken-Murray's Treatment-J series, to determine the effect of the individual amines, alone, and the effect of various combination formulas

As you can see in the table above, after 120 minutes, Alken® Treatment J-677 is by far the most powerful oxygen scavenger, especially in low temperature water containing both dissolved oxygen and carbon dioxide. For use in a functioning boiler,with high temperature water, the closely-related formula, Alken® Treatment J-674 delivers oxygen scavenging and corrosion prevention.