Determination of Dissolved Oxygen by Winkler's MethodFull description
Oxygen Generator
Lesson Plan in Carbon CycleFull description
Oxygen Plant Manual .doc
Full description
Oxygen
These are the clues that are used in the Articles of Faith Scavenger Hunt. There are also instructions on how to construct the clues and placing the clues.Full description
Proses Converter Furnace (BOF (Basic Oxygen Furnace))Full description
Descripción completa
Evaluation of H2S Scavenger TechnologiesDescripción completa
2. Hal-hal berikut ini berkaitan dengan operasional boiler a. Apa tujuan penambahan oxygen scavenger ke dalam boiler feed water? b. sebutkan dua jenis oxygen scavenger yang paling aman digunakan. c. Tuliskan reaksi kimia yang menjelaskan fungsi dari oxygen scavenger.
Jawab: a.
Oxygen Attack Coil boilers are very prone to failure from oxygen corrosion. They are usually treated with higher levels of oxygen scavenger to minimize this failure mechanism. -Many pressure deaerators are capable of re ducing the oxygen level to less than 10 µg/L. However, considering the corrosive potential of oxygen, it is best to remove all traces of oxygen. This is accomplished with chemical oxygen scavengers that react with the free oxygen to form harmless oxidized products. The reaction products are subsequently removed through boiler blowdown or system venting. Chemical oxygen removal is the last opportunity to preve nt oxygen from entering the boiler.
b. However, Nalco research suggests hydrazine, carbohydrazide, and erythorbate are better oxygen scavengers, reductants, and metal passivators than DEHA 1. catbohydrazide 2. erythorbate
