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Sulpher condenser  

Challenge / question

A client is looking for a special waste heat boiler. He would like to use the heat of the combustion gases at a temperature of 1.200°C. The heat must be absorbed in two steps. The first step is at a high level where intense cooling of the tubes must be guaranteed. The inlet of the tubes must also be resistant to the high temperatures. In the second step, the hot gasses cool down further to a lower level where the temperatures on the tube side are less critical.

Our solution

To absorb the heat at a high level in the first step, we use a thermosiphon reboiler which guarantees extreme cooling of the tubes. The clever use of a separator drum placed above the steamer guarantees a homogenous flow and temperature around the tubes via several risers and downcomers. The cooling down of the hot flow in the second step is done by using a standard kettle reboiler. The conditioned internal recirculation of this kettle provides optimal cooling of the hot gasflow.



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