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A kind of butanol tail gas recovery device and method

A tail gas recovery and tail gas technology, applied in chemical instruments and methods, hydrocarbons, organic chemistry, etc., can solve the problems of large investment and energy consumption, large investment, etc., to reduce energy consumption, recycle efficiently, and increase energy The effect of utilization efficiency

Active Publication Date: 2018-02-09
HANGZHOU SHUANGAN SCI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Butyraldehyde shows certain corrosiveness in actual operation, the absorption and desorption tower should be made of stainless steel, and the investment is relatively large
In addition, if the absorption method is required to achieve a high tail gas recovery rate (for example, more than 90%), the investment and energy consumption will increase greatly

Method used

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  • A kind of butanol tail gas recovery device and method

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Embodiment Construction

[0043] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] as attached figure 1 Shown, a kind of butanol tail gas recovery device provided by the invention comprises:

[0045] Compression mechanism X, which is used to receive the tail gas 1 and compress the pressure of each gas component in the tail gas to the same level;

[0046] A rectifying mechanism Y, which is used to receive the output stream from the compression mechanism, and respectively output the recovered butyraldehyde stream 2, the recovered propylene propane m...

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Abstract

The invention discloses a butanol tail gas recovery device, which comprises: a compression mechanism, which is used to receive the tail gas, and compress the pressure of each gas component in the tail gas to the same level; a rectification mechanism, which is used to receive the The output flow of the compression mechanism, and respectively output the recovered butyraldehyde flow, the recovered propylene propane mixed flow and the remaining tail gas flow; the cryogenic mechanism is used to receive the remaining tail gas flow from the rectification mechanism, and further recover Among them is propylene propane. The device of the present invention realizes obtaining the butyraldehyde and propylene propane mixture with high recovery rate under the condition of low energy consumption through the cooperative work of the compression mechanism, the rectification mechanism and the cryogenic mechanism.

Description

technical field [0001] The invention belongs to the field of tail gas treatment, and in particular relates to a butanol tail gas recovery device and method. Background technique [0002] Butanol is an important alcohol chemical raw material, and it has three important varieties: n-butanol, isobutanol and octanol (or 2-ethylhexanol). N-butanol is mainly used in the production of ester products such as butyl acrylate and dibutyl phthalate. The former is used in coatings and adhesives, and the latter two are plasticizers for PVC. Isobutanol can partially replace the use of n-butanol. Octanol is mainly used to produce PVC plasticizers such as dioctyl phthalate, dioctyl sebacate, etc., and is also used to manufacture octyl acrylate as coatings and adhesives. Butyl octanol products are developed rapidly with the development of petrochemical industry, polyvinyl chloride plastic industry, organic chemical industry and oxo synthesis technology. [0003] The industrial production ...

Claims

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Application Information

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IPC IPC(8): C07C7/00C07C9/08C07C11/06C07C45/78C07C47/02
Inventor 不公告发明人
Owner HANGZHOU SHUANGAN SCI TECH
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