Omid,

I am not a process plant engineer, but from my experience I can say, you would be able to get help from traditional Sulphur Reovery Unit (SRUs) used in LNG industry. There are lot of material available over internet.

All the best

The Claus process is the most common type of sulfur recovery. There is a lot of information available. Here is a quick overview from Wikipedia

https://en.wikipedia.org/wiki/Claus_process

Is this the process you are considering? Are you using the correct metallurgy? This article could also be helpful:

http://www.universulphur.com/wp-content/uploads/2018/05/Read-the-Paper-Corrosion-Control-in-Sulphur-Recovery-Units-%E2%80%93-Claus-Process.pdf