Dina Raheem; Janet Lazer
Abstract
The effect of hydrochloric acid and citric acid was studied experimentally for boiler chemical cleaning to determine the dissolved scale by using carbon steel samples of water-side ...
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The effect of hydrochloric acid and citric acid was studied experimentally for boiler chemical cleaning to determine the dissolved scale by using carbon steel samples of water-side boiler tubes sections ,different concentrations of hydrochloric acid HCL and citric acid were used (2%,3%,4% and 5%) to calculate the weight loss of samples then determined the dissolved scale in gm/m2. The more efficient acid for the chemical cleaning, was found to be HCL acid at 5% concentration by using 0.3% rodin inhibitor at temp. 60 and time 30 minute to obtain 248 gm/m2 of dissolved scale while the citric acid at 5% concentration by using 0.3% hexamine inhibitor and temp.70 and time 240 minute to obtain 168 gm/m2 of scale dissolved.
