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thanks also for this suggestion....so basically it seams the "plan" seal is the most indicated....I'll get deeper on this possibility. Francesco

dear ATMCHemE this will definitely help me. thanks a lot for your reference.

thanks a lot for the link, I'll go through the documentation carefully.

Dogtop, we would like to test some reaction with LPG to make a stream of H2S at various concentration

Thanks, I was in fact thinkinhg if it can be better to flow the molten sulfur inside a tube heat exchanger in a gas fired chamber or if it was better to keep sulfur in a "kettle" type boiler with gas firing inside the tubes submerged... any idea or suggestion?

Thanks a lot for your suggestion, I was thinking to some kind of "special" polymeric gaskets but the graphoil solutions sounds much more reasonable.... regards Francesco

dear all, we are planning the design of a small unit where we will flow a gaseous stream of H2S (purity from 40% upto 80%) at variable temperature (from 50°C upto 500°C). Do you have any suggestions about the selection of material for both piping (max P = 6 barg) and gaskets/sealants for thread...

Dear all, we are designing a small unit where we should vaporizein continuous a small amount of molten sulfur. We have some concern due to the viscosity change of molten S (increase then decrease) so do you have any suggestion on the typeof "boiler" to be designed? We will appreciate any typeof...

Dear all, could somebody give me a reference number for the thermal conductivity of sulfur in vapor phase? Any value in a temperature range 450°C-600°C will be fine... thanks Francesco