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Continuous Multi-Stage Evaporation Process for Separating Multi-Component Mixtures

IP.com Disclosure Number: IPCOM000247941D
Publication Date: 2016-Oct-12
Document File: 2 page(s) / 98K

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The IP.com Prior Art Database


This document discloses a continuous, multi-stage evaporation process for separating multi-component mixtures. The process provides a method to separate temperature sensitive materials and other difficult to separate mixtures. A series of evaporators are connected using reflux streams to separate a feed mixture into distillate (generally more volatile components) and bottoms (generally less volatile components) streams.

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Document for public disclosure

Continuous Multi-Stage Evaporation Process for Separating Multi-Component Mixtures This document discloses a continuous, multi‐stage evaporation process for separating multi‐component  mixtures. The process provides a method to separate temperature sensitive materials and other difficult to  separate mixtures. A series of evaporators are connected using reflux streams to separate a feed mixture into  distillate (generally more volatile components) and bottoms (generally less volatile components) streams. 

This disclosure describes a continuous, multi‐stage evaporation process for  separating multi‐component mixtures. A series of evaporators are connected  using reflux streams to separate a feed mixture into distillate (generally more  volatile components) and bottoms (generally less volatile components). Each  individual evaporator feeds its isolated distillate stream into the preceding  evaporator and its bottoms liquid stream into the subsequent evaporator  (see Figure 1). 

In the simplest configuration, a single feed stream is provided into any of the  evaporators in the system. A takeoff stream is taken from the distillate of the  first evaporator in the system, which contains primarily the more volatile  component(s). A takeoff stream is also taken from the bottoms of the final  evaporator in the system, which contains primarily the less volatile  component(s). 

Alternate configurations are beneficial in some scenarios. These  configurations include feed points at multiple evaporators, takeoff points  from multiple distillate streams or fractions thereof, takeoff points from  multiple bottoms streams or fractions thereof, fractionation of any stream to  feed into a separate, parallel evaporat...