After the dissolved elemental sulfur is formed in the hydrocarbon solution, the liquid is piped from the absorber, through a flash vessel if necessary to lower the operating pressure, and then through a crystallizer.
After the solid sulfur is removed, the hydrocarbon solution is re-heated to approximately 150 °F and the liquid is then pumped back into the absorber to continue the process of absorbing more H2S and removing it from the gas stream [REF].