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 39
... AMMONIA SYNTHESIS Corrosion difficulties are encountered in handling ammonia synthesis gas mixtures containing more than 2 ppm of nitrogen oxides but these are reduced to less than 2 ppm in passage over the CO Conversion catalyst . The ...
... AMMONIA SYNTHESIS Corrosion difficulties are encountered in handling ammonia synthesis gas mixtures containing more than 2 ppm of nitrogen oxides but these are reduced to less than 2 ppm in passage over the CO Conversion catalyst . The ...
Page 40
... ammonia , dry molecular nitrogen is inert but atomic nitrogen will attack steel . Atomic nitrogen is produced by the dissociation of ammonia above 400 ° C , the reac- tion being catalysed by steel surfaces . Some of the nitrogen atoms ...
... ammonia , dry molecular nitrogen is inert but atomic nitrogen will attack steel . Atomic nitrogen is produced by the dissociation of ammonia above 400 ° C , the reac- tion being catalysed by steel surfaces . Some of the nitrogen atoms ...
Page 48
... ammonia recovery still in the manufacture of soda ash . These tubes are exposed to the action of ammonia and ammonium chloride at approxi- mately 175 ° F on the inside and saturated carbon dioxide and ammonia at approximately 190 ° F on ...
... ammonia recovery still in the manufacture of soda ash . These tubes are exposed to the action of ammonia and ammonium chloride at approxi- mately 175 ° F on the inside and saturated carbon dioxide and ammonia at approximately 190 ° F on ...
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