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High-purity anhydrous alcohol production system, and method for producing high-purity anhydrous alcohol

An anhydrous alcohol, production system technology, applied in separation methods, chemical instruments and methods, preparation of organic compounds, etc.

Pending Publication Date: 2021-07-06
肥城金塔机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no relevant reports on the process and equipment for producing high-purity anhydrous alcohol from fuel ethanol at home and abroad

Method used

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  • High-purity anhydrous alcohol production system, and method for producing high-purity anhydrous alcohol

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Embodiment Construction

[0037] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0038] In order to enable those skilled in the art to understand the technical solution of the present application more clearly, the technical solution of the present application will be described in detail below in conjunction with specific embodiments.

[0039] A high-purity anhydrous alcohol production system of the present invention includes a raw material tank 1, a four-effect light removal tower 2, a first-effect rectification tower 3, a second-effect rectification tower 4, a three-effect rectification tower 5, adsorption equipment and evaporation recovery Tower 6.

[0040] Fuel ethanol with a water content of 0.5% is stored in th...

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Abstract

The invention discloses a high-purity anhydrous alcohol production system. The system comprises a raw material tank, a fourth-effect light component removal tower, a first-effect rectifying tower, a second-effect rectifying tower, a third-effect rectifying tower, adsorption equipment and an evaporation recovery tower; the raw material tank is connected with the middle inlet end of the fourth-effect light component removal tower; the alcohol steam outlet end at the top of a fourth-effect light component removal tower is connected with the inlet end of a condenser of the light component removal tower; an alcohol outlet end at the bottom of the fourth-effect light component removal tower is connected with an inlet end at the middle lower part of the third-effect rectifying tower; an outlet end at the bottom of the third-effect rectifying tower is connected with an inlet end at the middle lower part of the second-effect rectifying tower; an alcohol outlet end at the bottom of the second-effect rectifying tower is connected with an inlet end at the middle lower part of the first-effect rectifying tower; an alcohol steam outlet end at the top of the first-effect rectifying tower is connected with an inlet end of a reboiler of the second-effect rectifying tower; an alcohol steam outlet end at the top of the second-effect rectifying tower is connected with an inlet end of a reboiler of the third-effect rectifying tower; and an alcohol steam outlet end at the top of the third-effect rectifying tower is connected with an inlet end of a reboiler of the fourth-effect light component removal tower. The production cost is low, and the steam consumption for producing one ton of anhydrous alcohol is not more than 0.5 ton.

Description

technical field [0001] The invention relates to the technical field of high-purity absolute ethanol production, in particular to a high-purity absolute alcohol production system and a method for producing high-purity absolute alcohol. Background technique [0002] Since the national standards for fuel ethanol do not have high requirements on the content of impurities, in addition to ethanol as the main component of domestically produced fuel ethanol, impurities such as methanol, aldehydes and fusel oil produced during the production process are mixed into fuel ethanol, and the moisture content of fuel ethanol The content is generally around 0.5%, while high-purity anhydrous alcohol has relatively high requirements for the content of impurities, and the moisture content is generally required to be less than 0.1%. Therefore, fuel ethanol cannot be used as high-purity anhydrous alcohol, and must be purified and dehydrated In order to meet the requirements of high-purity anhydro...

Claims

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Application Information

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IPC IPC(8): B01D3/14B01D3/00C07C29/76C07C29/80C07C31/08
CPCB01D3/007B01D3/146B01D3/148C07C29/76C07C29/80C07C31/08
Inventor 孟国栋李丕武闫庆兵刘凯刘浩赵景祥郭禹廷
Owner 肥城金塔机械科技有限公司
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