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Kopfdampf

English translation: overhead vapor(s)

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Kopfdampf
English translation:overhead vapor(s)
Entered by: Zareh Darakjian Ph.D.
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13:44 Jul 8, 2007
German to English translations [PRO]
Tech/Engineering - Chemistry; Chem Sci/Eng
German term or phrase: Kopfdampf
Die Fraktionierkolonne ist eine Destillationseinrichtung, aus der leichte Gase, die Kohlenwasserstoffe enthalten, in dem Kopfdampf durch die Leitung abgefuehrt werden.

It is about a distillation process.
Anita N Shroff
Local time: 18:24
head vapor
Explanation:
This is the undistilled portion left in the distillation head:



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Note added at 14 mins (2007-07-08 13:59:09 GMT)
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The process of the present invention provides a system for separating nitrogen from a high pressure feed containing natural gas and nitrogen over a wide concentration range in a single distillation column to form a high pressure product stream of nitrogen and a high pressure product stream of natural gas by cooling the high pressure feed with subsequent separation in a single distillation column to form a high pressure overhead vapor rich in nitrogen and a high pressure bottoms liquid rich in natural gas hydrocarbons. The process of the invention condenses a ** head vapor ** of an upper section of the distillation column by heat exchange with a first closed loop refrigerant to provide reflux to the column, condenses an intermediate vapor of an intermediate section of the column by heat exchange with a second closed loop refrigerant and by heat exchange with the high pressure overhead vapor rich in nitrogen to provide an intermediate reflux to the column, such that the intermediate section vapor condensing duty attributable to the heat exchange against the high pressure nitrogen overhead increases with increasing nitrogen content in the feed to the process.

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Note added at 16 mins (2007-07-08 14:00:59 GMT)
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DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a condenser system showing an improved pressure measurement system;

FIG. 2 is a second schematic diagram demonstrating the interrelationship of the elements of the system which must be considered and improved in accordance with the teaching of the present invention;

FIG. 3 is a schematic diagram of an existing means for agitation of the batch contained in the kettle;

FIG. 4 is a schematic diagram of an existing kettle demonstrating the effect of kettle head vapor velocity and kettle head space height on entrainment;

FIG. 5 is a further schematic diagram of an existing kettle demonstrating the effect of kettle ** head vapor ** velocity and kettle head space height on entrainment;
Selected response from:

Zareh Darakjian Ph.D.
United States
Local time: 05:54
Grading comment
Thanks once again.
4 KudoZ points were awarded for this answer

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Summary of answers provided
4head vaporZareh Darakjian Ph.D.


Discussion entries: 14





  

Answers


11 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
head vapor


Explanation:
This is the undistilled portion left in the distillation head:



--------------------------------------------------
Note added at 14 mins (2007-07-08 13:59:09 GMT)
--------------------------------------------------

The process of the present invention provides a system for separating nitrogen from a high pressure feed containing natural gas and nitrogen over a wide concentration range in a single distillation column to form a high pressure product stream of nitrogen and a high pressure product stream of natural gas by cooling the high pressure feed with subsequent separation in a single distillation column to form a high pressure overhead vapor rich in nitrogen and a high pressure bottoms liquid rich in natural gas hydrocarbons. The process of the invention condenses a ** head vapor ** of an upper section of the distillation column by heat exchange with a first closed loop refrigerant to provide reflux to the column, condenses an intermediate vapor of an intermediate section of the column by heat exchange with a second closed loop refrigerant and by heat exchange with the high pressure overhead vapor rich in nitrogen to provide an intermediate reflux to the column, such that the intermediate section vapor condensing duty attributable to the heat exchange against the high pressure nitrogen overhead increases with increasing nitrogen content in the feed to the process.

--------------------------------------------------
Note added at 16 mins (2007-07-08 14:00:59 GMT)
--------------------------------------------------

DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a condenser system showing an improved pressure measurement system;

FIG. 2 is a second schematic diagram demonstrating the interrelationship of the elements of the system which must be considered and improved in accordance with the teaching of the present invention;

FIG. 3 is a schematic diagram of an existing means for agitation of the batch contained in the kettle;

FIG. 4 is a schematic diagram of an existing kettle demonstrating the effect of kettle head vapor velocity and kettle head space height on entrainment;

FIG. 5 is a further schematic diagram of an existing kettle demonstrating the effect of kettle ** head vapor ** velocity and kettle head space height on entrainment;



    he uncondensed portion of the head vapor of this column still contains gaseous vinyl acetate, which is washed out of the gas mixture
Zareh Darakjian Ph.D.
United States
Local time: 05:54
Specializes in field
Native speaker of: Native in EnglishEnglish, Native in ArmenianArmenian
PRO pts in category: 162
Grading comment
Thanks once again.
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Changes made by editors
Jul 8, 2007 - Changes made by Zareh Darakjian Ph.D.:
Created KOG entryKudoZ term » KOG term


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