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CORROSION MONITORING OF SWCC PLANTS - I:1 Vapor-Side ...

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Table 3.<br />

Corrosion of Cu-Ni, Carbon Steel and Stainless Steel 316L in<br />

Vent Lines of MSF Desalination Plant, Unit # 100, Al-Khafji<br />

S. No. Distiller Stage #<br />

(Cascading)<br />

Exposure Period<br />

(hr.)<br />

Corrosion Rate (MPY) of<br />

Alloys<br />

70-30<br />

Cu-Ni<br />

SS<br />

316L<br />

Carbon<br />

Steel<br />

1 3 2000 0.41 0.06 3.97<br />

(1-3) 4000 0.42 0.05 5.55<br />

2 8 2000 0.07 0.06 0.46<br />

(4-8) 4000 0.05 0.04 1.02<br />

3 13 2000 0.1 0.07 1.95<br />

(9-13) 4000 0.06 0.07 1.74<br />

4 17 2000 0.04 0.06 0.42<br />

(14-17) 4000 0.01 0.02 0.99<br />

5 22 2000 0.08 0.04 0.87<br />

(18-22) 4000 0.12 0.02 0.96<br />

Table 4.<br />

Corrosion of Cu-Ni, Stainless Steel 316 L and Carbon<br />

Steel in the Flash chambers of MSF Desalination Plant,<br />

Unit # 100, Al-Khafji<br />

S.<br />

No.<br />

Distiller<br />

Stage #<br />

Exposure<br />

Period (h)<br />

Corrosion Rate (MPY) of<br />

Aloys<br />

70-30<br />

Cu-Ni<br />

SS 316 L<br />

Carbon<br />

Steel<br />

1 1 9000 0.1 0.001 1.80<br />

2 4 9000 0.05 0.001 1.72<br />

3 10 9000 0.02 0.002 2.41<br />

4 14 9000 0.01 0.002 2.40<br />

5 18 9000 0.007 0.001 2.36<br />

1638

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