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The Problem is i need the pH at 8-9 (sorry for the confusion)For efficent stripping in the towers. The caustic problem is due to possible build up of caustic in heat exchangers and the bottom of the tower which are at 70-120 degC. ive been told by our inspections department that 5wt% caustic...

Caustic Crackin / Corrosion = Localized corrosion due to the concentration of caustic that usually occurs under evaporative or high heat transfer conditions. It appears as localized metal loss such as grooves. it affects carbon steel and low alloy steel even with stress releaved welds. The...

Sodium carbonate will still give me sodium hydroxide (caustic) in the line as the reaction with a weak acid produces sodium hydroxide Na2CO3 + 2H2O à H2CO3 + 2 NaOH and pushing oil through would not reduce the amount of ammonia in the effluent which is the aim if increasing the stripper...

Thanks for the info guys ill have a quick look at the sodium carbonate and see if its okay to use. Waiting on some analysis of the feed do get exact concs of the organic acids ill write back with what i find thanks Gareth

I am currently working at a refinery were we have a problem with ammonia in our waste water this is due to partly to direct release to our holding basin and performance problems with slop water processing. we hae identified one of our problems as the presence of Organic acids that are trapping...