What issues should be considered in the design of sulfur recovery units?
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Sulfur recovery is carried out using the Claus process, while the exhaust gas is treated with a conventional reduction absorption process. The acid gas contains 8.73% NH3, and conventional MDEA solvent is used for solvent regeneration, which is performed on a centralized basis. What aspects should everyone pay attention to during the detailed design?
The amine absorption and regeneration unit for exhaust gases should preferably be separate
Could you explain it more clearly? Also, I think everyone has been working with sulfur for many years, and the original designs likely had some issues. Could these valuable experiences be shared so that such problems can be avoided in future designs?
1. A burner with ammonia burning capability. 2. Consider the material of equipment subject to severe corrosion at the dew point. 3. Consider low-dot-product sulfur recovery to prevent blockages. 4. It features a sulfur pipeline with controllable heating temperature for easy adjustment. 5. Improve exhaust gas separation efficiency and increase the recovery rate. 6. Consider sulfur particles in the exhaust gas stream, which facilitates filtration and cleaning, and can help avoid blockages in towers and pipelines. 7. How to recycle wastewater without causing pollution. 8. Achieve zero emissions of steam and water at the site, enabling sustainable recycling of resources. 9. The design facilitates analysis at various points and sampling, reducing the risk of blockages in the analysis pipelines and issues related to the inability to take samples. 10. The degree of automatic adjustment should be high; reliable and high-quality brands of automatic analysis instruments should be chosen. 11. Do not use asbestos gaskets for any purpose, as this will lead to aging issues. In our area, most asbestos gaskets reach their end of life after 4 years, at which point leaks start to occur; replacing them in large quantities is a real hassle! ) The leakage of toxic gases makes it difficult to repair, and replacement is not feasible; graphite gaskets can be used, as they are more cost-effective in the long run compared to asbestos gaskets. :lol :victory: This post was last edited by “The Earth keeps spinning” on April 17, 2009, at 13:51.]