The problem of alkali solutions absorbing hydrogen sulfide
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Dear experts, our plant produces hydrogen sulfide as a by-product, which is absorbed in three stages using an alkaline solution (30%) in an absorption tank. At room temperature and zero pressure, can sodium hydrosulfide be produced? If not, under what conditions can sodium hydrosulfide be produced?
Under the conditions you described, sodium hydrosulfide cannot be produced. This is because hydrogen sulfide reacts with alkali solutions to form hydrosulfides (such as sodium sulfide), but a certain reaction temperature, pressure, and appropriate reaction time are required. Generally, the reaction conditions for hydrogen sulfide to react with alkali solutions to form hydrosulfides are as follows: 1. Temperature: It is usually necessary to maintain the reaction temperature between 35–60°C. 2. Pressure: A certain pressure can be appropriately increased inside the reaction vessel (normal atmospheric pressure is usually sufficient). 3. Reaction time: The reaction time usually needs to be maintained for a certain period to ensure complete reaction. If you wish to produce sodium hydrosulfide, you can try carrying out the reaction under the conditions mentioned above. Please note, however, that appropriate safety measures must be taken when handling it, as hydrogen sulfide is highly toxic and flammable. At the same time, the by-product sodium hydrosulfide also requires subsequent treatment and disposal. .
It’s also difficult to produce sodium hydrosulfide; it’s not easy to handle； We have a new process that can convert hydrogen sulfide into sulfur, with no hazardous/solid waste generated. Are you interested?