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Preparation method for producing arene and olefin from mixed alcohol

A technology for olefins and aromatic hydrocarbons, which is applied in the field of preparing aromatic hydrocarbons and olefins with mixed alcohols, can solve problems such as outstanding environmental protection problems, difficult water separation, and high energy consumption, and achieves the advantages of saving production costs, reducing energy consumption, and reducing environmental pollution. Effect

Inactive Publication Date: 2020-06-02
河北玺尧新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the bottleneck problem of mixed alcohol treatment is the difficulty of water separation in mixed alcohol, which leads to high energy consumption, high cost and prominent environmental protection problems in mixed alcohol treatment, so it is necessary to develop a new mixed alcohol treatment process

Method used

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  • Preparation method for producing arene and olefin from mixed alcohol
  • Preparation method for producing arene and olefin from mixed alcohol
  • Preparation method for producing arene and olefin from mixed alcohol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This example provides a preparation method for producing aromatics and olefins with mixed alcohol, which includes the following steps: (1) vaporization treatment, (2) first dehydration reaction, (3) second Dehydration reaction, (4) gas-liquid separation, (5) oil-water separation, (6) LPG separation and (7) alkyl purification.

[0026] The mixed alcohol in this embodiment includes the following components in mass percentage: 15% methanol, 45% ethanol, 7% other miscellaneous alcohols, and the balance is water.

[0027] Firstly, the mixed alcohol is subjected to (1) vaporization treatment, the purpose is to turn all the mixed alcohol into gas, that is, to heat the mixed alcohol to vaporize, the heating temperature is 200°, and the vaporization pressure is 1.4Mpa.

[0028] The gas obtained by the vaporization of step (1) is processed in step (2), and step (2) is the first dehydration reaction, and the first dehydration reaction is that the temperature and pressure of the va...

Embodiment 2

[0056] This example provides a preparation method for producing aromatics and olefins with mixed alcohols, which includes the following steps: (1) vaporization treatment of mixed alcohols, (2) first dehydration reaction, (3) second Dehydration reaction, (4) gas-liquid separation, (5) oil-water separation, (6) LPG separation and (7) alkyl purification.

[0057] The mixed alcohol of the present embodiment comprises the following components in mass percentage: methanol 10%, ethanol 50%, and the balance is water.

[0058] Firstly, the mixed alcohol is subjected to (1) vaporization treatment, the purpose is to turn all the mixed alcohol into gas, that is, to heat the mixed alcohol to vaporize, the heating temperature is 180°, and the vaporization pressure is 1.4Mpa.

[0059] The gas obtained by the vaporization of step (1) is processed in step (2), and step (2) is the first dehydration reaction. Mix with dimethyl ether catalyst under Mpa, the volume ratio of the volume of describe...

Embodiment 3

[0068] This example provides a preparation method for producing aromatics and olefins with mixed alcohols, which includes the following steps: (1) vaporization treatment of mixed alcohols, (2) first dehydration reaction, (3) second Dehydration reaction, (4) gas-liquid separation, (5) oil-water separation, (6) LPG separation and (7) alkyl purification.

[0069] The mixed alcohol of this embodiment comprises the following components in mass percentage: 20% of methanol, 40% of ethanol, 10% of other fusel alcohols, and the balance is water.

[0070] First, the mixed alcohol is subjected to (1) vaporization treatment, the purpose is to turn all the mixed alcohol into gas, that is, to heat the mixed alcohol to vaporize, the heating temperature is 230°, and the vaporization pressure is 1.4Mpa.

[0071] The gas obtained by the vaporization of step (1) is processed in step (2), and step (2) is the first dehydration reaction. Mix with dimethyl ether catalyst under Mpa, the volume ratio...

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Abstract

The invention relates to a separation and purification method of mixed alcohol. The method comprises the following steps: carrying out vaporization treatment, carrying out primary dehydration reaction, carrying out secondary dehydration reaction, carrying out gas-liquid separation, carrying out oil-water separation, carrying out LPG separation and carrying out alkyl purification on the mixed alcohol in sequence. The mixed alcohol can be used for producing olefin, alkane and arene, and the production efficiency is high, and the product purity is high.

Description

technical field [0001] The invention belongs to the technical field of mixed alcohol treatment, and relates to a preparation method for producing aromatic hydrocarbons and olefins with mixed alcohol. Background technique [0002] Refining, separation and purification of mixed alcohols is usually to refine the mixed alcohols containing ethanol, fusel alcohol and water by using different boiling points to obtain refined products. Among them, the bottleneck problem of mixed alcohol treatment is the difficulty of water separation in mixed alcohol, which leads to high energy consumption, high cost and prominent environmental protection problems in mixed alcohol treatment, so it is necessary to develop a new mixed alcohol treatment process. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method for producing aromatics and olefins with mixed alcohols, which can produce olefins, alkanes and aromatics with mixed alcohols, and has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C07C1/20C07C15/04C07C15/06C07C15/08C07C15/02
CPCC07C1/20C10G3/00C10G3/42C10G3/60C07C15/04C07C15/06C07C15/08C07C15/02Y02P30/20
Inventor 郝金付
Owner 河北玺尧新能源科技有限公司
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