Corrosion in Fertiliser and Petroleum Industry: Proceedings of Short Course on "Corrosion in Fertiliser and Petroleum Industry" Organised by the Corrosion Advisory Bureau at Udyogamandal from 20th to 24th December 1968K. N. P. Rao, A. K. Lahiri |
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Page 94
... less plugging due to accumulation of corrosion products and ( iv ) less shutdowns , with corresponding decrease in the maintenance costs . In reasonable dosages these inhibitors do not affect any refinery product adversely . Higher ...
... less plugging due to accumulation of corrosion products and ( iv ) less shutdowns , with corresponding decrease in the maintenance costs . In reasonable dosages these inhibitors do not affect any refinery product adversely . Higher ...
Page 136
... less than 10 ppm chromate . Nearly 1000 times this latter figure was required to protect the complex cooling system of power rectifier . Higher amounts are needed at elevated temperatures : a water that requires 500 ppm dichromate at 20 ...
... less than 10 ppm chromate . Nearly 1000 times this latter figure was required to protect the complex cooling system of power rectifier . Higher amounts are needed at elevated temperatures : a water that requires 500 ppm dichromate at 20 ...
Page 154
... less a constant saturation index over a wide range of temperature . 2 Mr. S. Jagannathan ( Cochin Refineries Ltd. , Cochin ) We have no experience on the use of sacrificial anodes inside the heat exchanger system and would like to have ...
... less a constant saturation index over a wide range of temperature . 2 Mr. S. Jagannathan ( Cochin Refineries Ltd. , Cochin ) We have no experience on the use of sacrificial anodes inside the heat exchanger system and would like to have ...
Contents
INTRODUCTION | 3 |
CHEMICAL CORROSION AND ITS PREVENTION | 13 |
CORROSION PROBLEMS IN THE MANUFACTURE OF NITROGEN BASED FERTILIZER | 27 |
9 other sections not shown
Common terms and phrases
addition alloys aluminium ammonia ammonium amount anodic application attack bottom carbon steel cast iron cathodic protection cause chemical chloride chromium coatings concentration construction containing cooling corrosion problems corrosion rate cracking crude developed distillation effective environment epoxy equipment exchangers failure fertiliser flow formation give given handling heat higher hydrogen hydrogen sulphide increase industry inhibitor iron lead material metal method mild steel Monel months natural observed occurred operating organic oxide oxygen paint petroleum phosphate pipe pitting plant plates potential practice presence pressure prevent pumps range reaction reduced refinery removal resistance rubber severe shell showing solution specially stainless steel steam storage tanks stress corrosion structure suitable sulphuric acid surface Table tanks temperature tests thickness tower treatment tubes unit various welding zinc