Process and apparatus for distillation and/or stripping

Details Process and apparatus for distillation and/or stripping Process and apparatus for distillation and/or stripping

1985-03-07

1987-09-22

Schor, Kenneth M.

Distillation: processes, separatory

And recovering heat by indirect heat exchange

Utilizing recovered heat for heating the distillation zone

203 96, 203 97, 203 98, 203DIG4, 203DIG14, 203DIG25, 202235, 202185A, 159 173, 159 243, 159DIG8, 159DIG32, 623241, 62501, B01D 314

Patent

active

046953493

ABSTRACT:
A process is disclosed for distillation and/or stripping in a column, the lower portion of which is heated and the upper portion of which is cooled. The heating and cooling facilities thereof are coupled with each other by means of a heat pump system. In order to reduce the energy input, the invention provides for driving the heat pump system by means of expansion of a gas or vapor, and with the gas or vapor, after expansion, utilized as the stripping gas in the column.

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Chem. Eng., Sep. 26, 1977, Petterson et al., "Energy-Saving Schemes in Distillation", pp. 78-86.

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