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Alcohol quinque-towel differential pressure distilling arrangement and technique thereof

A distillation device and differential pressure technology, applied in distillation separation, chemical instruments and methods, separation methods, etc., can solve problems such as shutdown and maintenance, economic loss, blockage, etc., to save steam consumption, improve heat exchange effect, and improve heat exchange The effect of efficiency

Active Publication Date: 2006-02-22
广东省博罗中科天元高新技术工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a gap from the world's advanced level, and there is still potential to be tapped
In addition, the crude distillation column reboiler of the existing mainstream technology often suffers from fouling, sedimentation, blockage and shutdown for maintenance, resulting in economic losses

Method used

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  • Alcohol quinque-towel differential pressure distilling arrangement and technique thereof

Examples

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Embodiment

[0026] Example: as attached figure 1 As shown, the five-tower differential pressure distillation device comprises a crude distillation tower 1, a rectification tower 2, a water washing tower 3, a methanol tower 4 and a recovery tower 5, wherein the top of the rectification tower 2 is connected to the crude distillation tower reboiler 12 respectively through pipelines. The shell-side inlet port is connected to the shell-side inlet port of the reboiler 14 of the water washing tower, and the shell-side outlet port of the crude distillation tower reboiler 12 and the shell-side outlet port of the reboiler 14 of the water washing tower are respectively connected to the rectification tower reflux pump 204 through pipelines. The inlet port is connected; the bottom of rectification tower 2 is connected with the shell-side inlet port of light wine preheater 11 through pipeline, and the shell-side outlet port of light wine preheater 11 is connected with the residual water pump 205 inlet p...

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Abstract

The invention discloses a five-tower differential pressure distilling apparatus and the technique for alcohol: the fractionating tower operating with positive pressure, some alcohol vapor in the head tower flowing into the reboiler of crude distillation column, and the other into the reboiler of water scrubber; the leaving distilled water in the still of fractionating tower preheating the weak alcohol liquid from the bottom of water scrubber, then partly inpouring to crude alcohol preheater to preheat crude alcohol, and partly inpouring to water scrubber according to the requirement of flowmeter; by flash distillation the condensate water in the reboiler of fractionating tower generating indirect steam which enters directly into the still of water scrubber; the water scrubber operating with negative pressure, and the alcohol vapor in the head into the reboiler of the methanol heating tower. The significance effect is that: the energy saving effect is perfect when used to produce excellent edible alcohol and the vapor consuming index approaching the advanced lever of 2.3- 2.6 t / t.

Description

technical field [0001] The invention relates to an alcohol production process and its device, in particular to a five-tower differential pressure distillation process for alcohol production and its device. Background technique [0002] Alcohol production differential pressure distillation technology is a distillation technology developed by the alcohol industry in recent years. The existing mainstream differential pressure distillation technology is listed in "Alcohol and Distilled Wine Technology" (--Zhang Kechang, editor-in-chief, China Light Industry Press, September 2002) , "New Alcohol Technology" (--published by the University Textbook Publishing Center of Beijing Chemical Industry Press in July 2004) are discussed in detail. Many alcohol factories in China have adopted the five-tower differential pressure distillation process. For the five-tower differential pressure distillation process of the prior art, generally the crude distillation tower is under negative press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/00
Inventor 唐兆兴姜新春王军李超周宏才陈宪笙
Owner 广东省博罗中科天元高新技术工程有限公司
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