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Ammonia in Sour Water - CS or Nickel Alloys

Ammonia in Sour Water - CS or Nickel Alloys

Ammonia in Sour Water - CS or Nickel Alloys

(OP)
We are doing a stripping in sour water from FCC that contains water, H2S, Ammonia and phenol.

Since there are no present of chloride and oxidant agent in the Heat & Material Balance. SCC mightly would not hapen.

But I am still consfused in wet ammonia contained in the water. Can any body give some guidance and/or share experience in what materials can be selected?


Before stripping the water, the ammonia is about 3% of mass. While entering the acid gas incerenator it became 60% ammonia, 35% H2S, and the rest is Water. I am thinking Alloyed CS for this line, but still not sure. Or I just go with Nickel Alloy for a safety reason?

Any clue which standard to refer would be helpful.

RE: Ammonia in Sour Water - CS or Nickel Alloys

(OP)
OK thx for the clue.. I'll try to look at those standard

RE: Ammonia in Sour Water - CS or Nickel Alloys

make treatments to have FCC and consider CCT diagram

- Material & metallurgy engineer -

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