Claims
- 1. A distillation apparatus adapted to effect separation of component materials of a first and a second mixture and maintain said mixtures separate comprising a first distillation column comprising:
- a first upper rectifying section and a first lower stripping section;
- a first feed inlet into said first distillation column between said first rectifying section and said first stripping section;
- a first outlet from said first rectifying section;
- a second distillation column comprising a second upper rectifying section and a second lower stripping section;
- a second feed inlet into said second distillation column between said second upper rectifying section and said second lower stripping section;
- a second outlet from said second rectifying upper section;
- wherein the first lower stripping section of said first distillation column surrounds and is in thermal contact with said second upper rectifying section of said second distillation column, and first lower stripping section of said first distillation column and said second upper rectifying section of said second distillation column having a common cylindrical wall, said second upper rectifying section having a top wall, said cylindrical wall and said top wall separating said second upper rectifying section from said first lower stripping section thereby permitting said second upper rectifying section of said second column to be maintained at a higher pressure than said first lower stripping section of said first column without a compressor.
- 2. The apparatus claimed in claim 1 wherein said lower stripping section of said first distillation column is annular.
RELATED APPLICATIONS
This application is a continuation-in-part of my co-pending application entitled "Distillation Column", Ser. No. 541,991, filed Oct. 14, 1983 now abandoned.
US Referenced Citations (9)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
541991 |
Oct 1983 |
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