May I ask what are the main Claus processes currently used for sulfur recovery? Gentlemen. . . .
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I only know low temperature, super, and sto. Can everyone help me think of more? What are the other reduction absorption methods? Who knows what new processes are available these days?
This post was last edited by Shandong Huaxing on 2010-8-6 at 11:19. The current sulfur recovery technologies in China include the SUPERCLAUS patent technology from the Dutch company Shell, 3D SSR, and Topsoe WSA technology. When comparing devices of similar scale, the Super Claus system requires less investment. Moreover, this technology features a shorter process flow compared to SSR technology, with fewer pieces of equipment – in particular, far fewer moving parts – making it easy to operate and maintain. It also does not require online analyzers for monitoring the H2S/SO2 ratio, which is difficult to control during actual operation, nor does it need special consumables such as chemical solvents. Starting, stopping, and normal operation can all be fully automatically controlled.
Reply to 2# xnfh_wpzg: Thank you very much for your answer. Also, I would like to ask whether this answer is based on your own experience or on some materials you have read before? Could you provide some information regarding this answer of yours, such as the source literature or something like that?
Reply: whsyl This information is the result of a comprehensive comparison conducted by our company, in collaboration with the design institute, when selecting a sulfur recovery process route. After evaluating various options, the Super Claus sulfur recovery process was ultimately chosen.
The last edit to this post was made by 654262293 on 2010-8-9 at 15:58. The SUPERCLAUS sulfur recovery process is an extension of the traditional Claus process. Based on the conventional CLAUS process, a selective catalytic oxidation section is added to selectively oxidize the residual H2S in the process gas from the final CLAUS stage into elemental sulfur, thereby increasing the sulfur recovery rate to over 99.0 %. The EUROCLAUS process was developed on the basis of the SUPERCLAUS technology. The goal is to increase the sulfur recovery rate to 99.4% or higher without additional investment. The difference between the EUROCLAUS process and the SUPERCLAUS process lies in the fact that a layer of hydrogenation catalyst is placed beneath the Claus catalyst in the final stage of the Claus catalytic reactor bed; this catalyst reduces SO2 to S and H2S, thereby **increasing** the overall sulfur recovery rate. Depending on the amount of acidic gas feed and the number of catalytic reactors, the sulfur recovery rate of the EUROCLAUS process can exceed 99.4 %.
Dear friends upstairs, please recommend some design firms that are good at designing Claus sulfur recovery processes. Thank you. It would be best if the exhaust emissions could meet the standards directly; our production capacity should be around 20,000 tons per year.
China Tianchen Engineering Corporation (formerly the First Design Institute of the Ministry of Chemical Industry)
These days, independent sulfur recovery units are usually commissioned to engineering companies; since the units are not large, the facility itself doesn’t have the capacity to handle them