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Novel multifunctional ethanol recovering and rectifying device

A multi-functional ethanol technology, applied in fractionation, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve the problems of low production efficiency, low heat conversion efficiency, incomplete recovery, etc., and achieve simple operation and high ethanol recovery rate Effect

Inactive Publication Date: 2012-10-10
苗振东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the liquid in the kettle cannot be released before the ethanol is recovered, the alcohol content in the liquid in the kettle is getting less and less, and the recovery efficiency is getting lower and lower. In the end, the waste water that has not completely recovered the ethanol has to be discharged, resulting in waste
Therefore, the tower still-type ethanol recovery rectification device has the disadvantages of low heat conversion efficiency and high energy consumption; intermittent operation, difficult operation adjustment, low production efficiency; high alcohol content in residual water, incomplete recovery, etc.

Method used

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  • Novel multifunctional ethanol recovering and rectifying device
  • Novel multifunctional ethanol recovering and rectifying device
  • Novel multifunctional ethanol recovering and rectifying device

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Embodiment Construction

[0026] The central steam heat exchanger 2 is composed of a central steam pipe 4 and a tube heat exchanger 20, the central steam pipe 4 is located in the center of the tube heat exchanger 20, and the upper end of the central steam pipe 4 communicates with the secondary packed tower 5, and the lower end It communicates with the vapor-liquid separation chamber 21 ; the upper end of the side wall of the tube-and-tube heat exchanger 20 is provided with a steam inlet / cooling water outlet 11 , and the lower end is provided with a residual steam outlet / cooling water inlet 12 .

[0027] The central steam cooler 6 is composed of a central steam pipe 7 and a tube cooler 23. The central steam pipe 7 is located in the center of the tube cooler 23, and the upper end of the central steam pipe 7 communicates with the tower top head 22, and the lower end communicates with the second stage. The packed towers 5 are connected; the upper end of the side wall of the tube cooler 23 is provided with a...

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Abstract

The invention discloses a multifunctional ethanol recovering and rectifying device, which is integrally structured as a tubular tower and consists of a water-gas separator, a first-stage packed column, a central ventilation tubular heat exchanger, a second-stage packed column, a cooler for the central ventilation tubular heat exchanger, and a top gland from bottom to top. The novel multifunctional ethanol recovering and rectifying device has the advantages of simple structure, convenient operation, continuous production, high efficiency, low consumption and wide application range, and is suitable for recovering and rectifying ethanol and various water-miscible solvents, particularly for the environment and situation that ethanol is used for processing and extracting while the ethanol is recovered and rectified for recycling.

Description

technical field [0001] The invention relates to a novel multifunctional ethanol rectification equipment, which is suitable for ethanol rectification in various production modes. Background technique [0002] Most of the currently used ethanol recovery and rectification equipment are column recovery and rectification devices. The structure is that a cylindrical metal kettle is installed at the bottom, a coil heat exchanger or a row-pipe heat exchanger is installed in the kettle, and a packed tower is erected on the top of the kettle. , and a cooler is set beside the top of the tower. The operation method is to inject the cold dilute alcohol to be recovered and rectified into the kettle, then send the steam to the heat exchanger, and heat the dilute alcohol through the heat exchanger to generate steam and enter the packed tower for ethanol recovery and rectification. When the liquid level in the kettle is lowered, dilute alcohol solution needs to be constantly replenished. Wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/14C07C29/80C07C31/08
Inventor 苗振东
Owner 苗振东