B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
202/79
B01D 3/06 (2006.01) B01D 1/22 (2006.01)
Patent
CA 1190178
PROCESS FOR EVAPORATIVE STRIPPING ABSTRACT OF THE DISCLOSURE The present disclosure is directed to a process and apparatus for removing volatile components from a liquid material. Generally, the process includes the step of passing the liquid material through a confined passageway having three predetermined portions. The liquid material is heated within the first predetermined portion under pressure and temperature conditions whereby the volatile components of the liquid material are maintained below the boiling point for said volatile components. The heated liquid material is continuously passed from said first predetermined portion into and through a second predetermined portion of the confined passageway. The second predetermined portion of the confined passageway is arranged to form a partial restriction to fluid flow. The liquid material is immediately passed from the partial restriction of the second predetermined portion into the third predetermined portion of the confined passageway. The third predetermined portion is arranged and configured to provide a relatively elongated, narrow passage having a high ratio of surface area to volume of fluid flow and a predetermined configuration to impart a turbulent flow to the liquid material. The pressure and velocity conditions of the fluid flow within the third predetermined portion are maintained at pre-selected levels whereby the volatile components of the liquid material rapidly vaporize in a flashing action as the liquid material passes from the first predetermined portion of the confined passageway through the partial restriction formed by the second predetermined portion of the confined passageway and into the third predetermined portion of the confined passageway whereby the vaporized volatile components form a high velocity vapor flow carrying the liquid material in atomized droplet form. The high velocity vapor flow is continued through the third predetermined portion of the confined passageway under time, pressure and temperature conditions whereby the vapor acts to turbulently evaporate the remaining volatile components from the liquid droplets turbulently carried by the vapor flow in high velocity flow throughout the third predetermined portion of the confined passageway.
428584
Moore James G.
Obey James H.
Pinkel Edward B.
Osler Hoskin & Harcourt Llp
White Consolidated Industries Inc.
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