Sulfur vaporization

[FrankDNT]

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 suggestion.

thanks
Francesco

 

[25362]

The unusual cyclooctasulfur S[sub]8[/sub] liquid viscosity rises with temperature by ring cleavage and formation of catenasulfur species above about 160[sup]o[/sup]C and reaches a maximum somewhere about 200[sup]o[/sup]C and thereafter falls on heating until at the b.p. of 444.6[sup]o[/sup]C becomes again a mobile dark red liquid.

 

[FrankDNT]

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?

 

[dogtop]

What's the end use of this sulphur vapour?

 

[FrankDNT]

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

 

[dogtop]

Have you considered spraying the molten sulphur into a stream of LPG? I do not know about the by-products, though.

HTH