In a sulfur condenser and degasser system associated with a Claus furnace, the condenser comprises a wound cross-countercurrent heat exchanger. Liquid sulfur is passed into the top of the condenser as reflux so that ascending sulfur droplets can be coalesced and the condenser can act as a rectifying...http://www.google.fr/patents/US4764192?utm_source=gb-gplus-shareBrevet US4764192 - Sulfur condenser and degasser unit
