| abstract |
A sulfur trap includes a vertically-elongated upper chamber, a lower chamber, a segregating wall, an orifice in the segregating wall, an upwardly extending hollow cylinder adjacent the orifice, a sphere disposed in the upper chamber, the sphere engaging the upwardly extending cylinder in a first position and the sphere floating in the molten sulfur contained in the upper chamber in a second position. An external shell is provided around the upper and lower chambers for circulating steam in the annular space between the shell and the upper and lower chambers. |