Method of optimizing the operation of a distillation column prov

Details Method of optimizing the operation of a distillation column prov Method of optimizing the operation of a distillation column prov

1989-09-01

1992-01-14

Bascomb, Wilbur

Distillation: processes, separatory

And returning product of distillation step to distillation zone

203 58, 203DIG9, 203DIG19, 202156, B01D 314

Patent

active

050807617

ABSTRACT:
In a method of optimizing the operation of a distillation column with a side heating device for reconditioning of extract which is received during the extraction of hydrocarbon-containing initial products with N-substituted morpholines whose substituents have not more than seven C-atoms as selective solvents a liquid is withdrawn to a side heating device through a chimney plate arranged above a feed plate, so that between 5 and 30 volume percent of the liquid supplied to the chimney plate is not withdrawn to the side heating device but instead supplied directly to a plate located underneath the chimney plate. A vapor-liquid mixture which has escaped through a top from the side heating device is returned back to the distillation column. The returned vapor-liquid mixture is fed either to the feed plate or to the plate located underneath the chimney plate. An arrangement for performing the inventive method is also provided.

REFERENCES:
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patent: 3349010 (1967-10-01), Plaster
patent: 3412016 (1968-11-01), Graven
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patent: 4655879 (1987-04-01), Brockman et al.
patent: 4661208 (1987-04-01), Honma et al.
patent: 4725338 (1988-02-01), Asanuma et al.

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