Methanol rectification device

Abstract

The invention provides a methanol rectification device, which comprises a rectification kettle for rectifying methanol, an evaporation chamber for heating a mixed solution, a reboiler and a countercurrent defoaming rectification mechanism for promoting methanol rectification, the evaporation chamber is arranged at the bottom of the rectification kettle, the surface of the evaporation chamber is sleeved with a feeding pipe, a reboiler is mounted at the bottom of the evaporation chamber, and a partition plate is arranged between the evaporation chamber and the rectifying still. The device belongs to the filed of chemical industry . According to the methanol rectification device, a special structure capable of eliminating microbubbles in real time and enlarging the contact surface of reflux liquid and steam is designed according to the problems that a large number of accumulated microbubbles exist in an existing rectification tower and the rectification efficiency is low; therefore, the problems that a large number of tiny bubbles are generated when methanol is rectified by a common rectification device, the bubbles hinder steam circulation and influence the purity of methanol, the steam is not thoroughly in countercurrent contact with reflux liquid in the rising process, and the rectification efficiency is low are effectively solved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a methanol rectification device. Background technique [0002] In the process of producing methanol in the chemical industry, it is necessary to use a rectification device to purify methanol. At present, the commonly used rectification device is a rectification tower. The methanol mixture is heated and evaporated in the rectification tower. When each shift is porous, the boiling point of the gas is different. The mixed gas molecules other than methanol are condensed on the surface of the plate and then dripped and refluxed. The reflux liquid is in contact with the steam to promote the purification of methanol, and finally high-purity methanol is obtained above the rectification tower. , the bottom of the rectification tower will get a turbid liquid, this rectification method will produce a lot of bubbles in the process of rectification, the generation of bubbles will af...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a methanol rectification device, which solves the problem that a general rectification device will generate a large number of tiny bubbles when rectifying methanol, and the bubbles hinder the circulation of steam and affect the purity of methanol. The problem of incomplete countercurrent contact between the steam and the reflux liquid in the process of rising, and low rectification efficiency

Images