How to check if the amount of water added during hydrogenation is sufficient? Is the test item ammonium salts? What is the indicator?
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For a 350,000-ton gasoline hydrogenation unit, what should be the backflow water volume for stages 1 and 2? 3 What should the reverse water injection amount be? How to check if the water injection amount is appropriate? What is the indicator? I ask experts to explain in detail.
Do you still have 1, 2, 3, reverse? It should be to measure ammonia and nitrogen in high-purity water
Yes, 1 and 2 are for the conversion of dienes as well as light sulfur and heavy sulfur. 3 is the one that gets rid of heavy sulfur.
Why is the water injection going in the reverse direction, to 1, 2, 3? Since I’m not aware of your specific process, it is normally necessary to add water before the air cooling stage and before the heat exchanger, prior to cold high-pressure operation. The specific indicators are the ammonia content in the recycled gas and the ammonia nitrogen content in the highly acidic water
There should be only 2 places for water injection: before the high-pressure section and at the top of the stripping tower. What’s unclear is why water needs to be injected into the reactor ? The amount of water to be added depends on the pH value of the acidic water (7-9), as well as the levels of ammonia nitrogen and chloride ions; generally, this amount is 4%-8% of the volume to be treated
Is it necessary to add water to the top of the stripping tower? Isn’t it common to add corrosion inhibitors at the top of the stripping tower to reduce corrosion? There’s no point in injecting water at the top of the stripping tower, right?