I have two questions regarding sulfur pits
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1. What is the role of bubbling air in sulfur pits? What is the principle? 2. Is air or nitrogen better for bubbling in sulfur pits? I earnestly ask all experts for their guidance to help me resolve this problem
Sulfur pit? ? ? Are you referring to the liquid sulfur tank? In simple terms, introducing air (by creating very small bubbles) ensures its uniform dispersion in liquid sulfur, thereby accelerating the mass transfer process for the release of hydrogen sulfide. Moreover, the polysulfides present in liquid sulfur can be oxidized by air, which further helps to reduce the level of hydrogen sulfide. Nitrogen is introduced to change the partial pressure (of hydrogen sulfide), thereby converting hydrogen sulfide in liquid sulfur into the gas phase. Active participation
Reply to 2# zhezi2009.wang: Bubbling is used to remove hydrogen sulfide from liquid sulfur. Air is cheap, so of course it’s used.
Wang: What do you mean by polysulfides? Do you refer to hydrogen polysulfides (H2Sx)? If no bubbling air is introduced, won’t hydrogen polysulfide be less likely to escape? Now, we need to choose between using air or nitrogen for bubbling – which does Wang recommend?
Reply to 3# piaoyu: I want to understand the principle of degassing, so as to decide which gas is more suitable.
Because hydrogen sulfide is not merely physically dissolved in liquid sulfur; polysulfides (hydrogen polysulfides) are formed. As you said, x is usually between 2 and 8. It’s also possible to avoid using air by employing cyclic spraying. It can both cool down during the process and stir to release hydrogen sulfide. Deaeration principle: H2Sx----H2S+Sx-1. I have discussed the specific method before at http://bbs.hcbbs.com/viewthread.php?tid=689149; please participate actively
May I ask the moderator upstairs: what is the typical air consumption when pumping air into a sulfur pit? (How many ?m3 of air per ?m3 of liquid sulfur?) For a sulfur pit with dimensions of 15m*8m*3m in height, how many air distributors would be appropriate to place inside it? Additionally, what is the typical controlled H2S partial pressure in the gas phase of sulfur pits? Thank you
Reply to 6# zhezi2009.wang: Dear moderator up there, what is the typical air consumption when pumping air into a sulfur pit? (How many ?m3 of air per ?m3 of liquid sulfur?) For a sulfur pit with dimensions of 15m*8m*3m in height, how many air distributors would be appropriate to place inside it? Additionally, what is the typical controlled H2S partial pressure in the gas phase of sulfur pits? Thank you
I’m not sure about this; I can’t just say anything. I’m sorry