Corrosion Prevention by the Deoxygenation of Water By the Desorption Method^* Available to Purchase

Corrosion of boilers can be prevented by the deoxygenation of boiler water by desorption. When this method is used the water undergoing deoxygenation is mixed with a gas which contains no oxygen. Because of the diffusion into the gas of the oxygen dissolved in the water, the deoxygenation of the water takes place to the degree needed. After the conclusion of the diffusion process, the gas and oxygen are automatically removed from the water, regenerated and again returned to the system. The feeding of the gas and its intensive mixing with the water is accomplished in an ejector. The separation of the gas/water mixture into gas and water (already deoxygenated) is done by a desorbing device; the regeneration of the gas is achieved in the reactor. Data reported include relation between degree of oxygenation and: (1) water temperature, (2) ratio of volumes of water and gas, (3) initial oxygen content, (4) water pressure at ejector, (5) water level in desorber, (6) temperature of gases used for heating reactor (for wood charcoal, coke, anthracite, and iron filings), and (7) time of contact of water and gas in mixer. 5.7.3