Negative pressure mash tower degassing, aldehyde-discharging and acid-discharging device for fuel ethanol and edible alcohol

A technology for edible alcohol and fuel ethanol, which is applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc. It can solve the problems of heavy load on towers, low PH value, and influence on product quality, so as to improve comprehensive Quality, reduce aldehyde content and acidity, reduce the effect of impurity discharge load

Pending Publication Date: 2020-03-27
肥城金塔酒精化工设备有限公司
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AI Technical Summary

Problems solved by technology

Too much impurity content in crude alcohol will lead to a large load of subsequent column discharge, which will affect product quality and cause product quality instability. Especially when producing fuel ethanol, there is no degassing and aldehyde discharging device. It will lead to high acidity and low pH value of fuel ethanol products

Method used

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  • Negative pressure mash tower degassing, aldehyde-discharging and acid-discharging device for fuel ethanol and edible alcohol

Examples

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Embodiment

[0048] Negative pressure mash tower degassing and degassing and degassing devices for fuel ethanol and edible alcohol, such as figure 1 Shown:

[0049] (1) steam enters the negative pressure mash tower from the steam inlet 27, and the degassed mash is distilled by the first tray 5 in the mash tower 1 to obtain degassed crude wine gas;

[0050] (2) The fermented mature mash enters from the mature mash inlet 4 of the degassing section 2, and the degassed crude wine gas in the degassed section 2 is distilled through the second plate 22 to the fermented matured mash to obtain impurity-containing crude wine gas and degassed alcohol. mash. A part of degassed mash enters the normal pressure mash tower through the second degassed mash outlet 26; another part of degassed mash enters the degassed mash inlet 6 from the first degassed mash outlet 9, and then enters the negative pressure mash tower 1 to carry out step (1 ) distillation; the degassed crude wine gas obtained by distillatio...

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Abstract

The invention discloses a negative pressure mash tower degassing, aldehyde-discharging and acid-discharging device for fuel ethanol and edible alcohol. The device comprises a negative pressure mash tower. A first tower plate is arranged in the negative pressure mash tower; a degassing section is arranged above the negative pressure mash tower, a second tower plate is arranged in the degassing section, an aldehyde discharging section is arranged above the degassing section, and fillers are arranged in the aldehyde discharging section. The invention also discloses a production method for improving the alcohol quality by using the device. Compared with the traditional mash tower, the relatively pure crude wine steam rising from the negative pressure mash tower is used for degassing fermentedmash and discharging aldehyde from crude alcohol without increasing steam consumption, pre-impurity removal of the fermented mash and the crude alcohol is achieved, carbon dioxide in the fermented mash and most low-boiling-point aldehydes and volatile acids in the crude alcohol are removed in the degassing section and the aldehyde discharging section, the aldehyde content and the acidity of the crude alcohol are reduced, the subsequent tower impurity discharging load is effectively reduced and the comprehensive quality of the alcohol is improved.

Description

technical field [0001] The invention relates to the technical field of alcohol production, in particular to a negative-pressure beer tower degassing and degassing and acid-removing device for fuel ethanol and edible alcohol. Background technique [0002] In the alcohol production process, the function of the traditional mash tower is to distill the fermented mash to separate the crude alcohol from the waste alcohol liquid, and distill the crude alcohol with a concentration of about 50% (v / v) from the top of the mash tower. The distiller's spent liquid is discharged from the bottom of the tower. [0003] Judging from the structural composition of the tower, it is an incomplete tower. The complete column is composed of a rectification section and a dehydration section. The crude distillation column is a dehydration section without reflux, and the continuous production is realized by continuously feeding the mature fermented mash from the upper part of the tower. plate. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/80C07C31/08
CPCC07C29/80C07C31/08
Inventor 孟国栋李培华刘凯闫庆兵田浩王坤安晓峰
Owner 肥城金塔酒精化工设备有限公司
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