May I ask which part of the hydrogenation unit produces ammonium disulfide?
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Hello everyone, I have a question for you: Which part of the hydrogenation unit is responsible for the production of ammonium disulfide? What impact does ammonium disulfide have on the unit, and how should it be dealt with? Thank you all; I look forward to your valuable advice!
Ammonium sulfide and ammonium disulfide are generated in the hydrogenation reactor; the reaction products pass through heat exchangers before being cooled by air. Crystallization of ammonium salts occurs in the last heat exchanger and during air cooling, which can block the heat exchangers and air cooling pipes.
The H2S and NH3 generated during the hydrogenation process form ammonium salts; therefore, it is generally advisable to inject water at temperatures above 180°C to prevent blockages caused by these ammonium salts.
It is generally believed in industrial production that the two ammonium salts, ammonium chloride and ammonium hydrosulfide, are formed; I was wondering if you know where ammonium disulfide is produced. Thank you!
It should be a substance that forms after hydrogenation and water injection, and which is corrosive to equipment pipes
It should be (NH4)2S, diammonium sulfide.
Heat exchangers and air cooling – that’s where the volume is concentrated~~~~
Ammonium disulfide? I really haven’t heard of it before; ammonium chloride and ammonium hydrosulfide do form during the reaction process. At temperatures of 180 or 150°C, they crystallize and can block the heat exchangers or air-cooling tubes, so it’s necessary to wash them with water