Multi-stage absorption device for treating high-concentration methanol waste gas

An absorption device and high-concentration technology, applied in the field of methanol waste gas treatment in the chemical industry, can solve problems such as unorganized emission environment, methanol waste gas leakage, and impact.

Pending Publication Date: 2022-07-22
陕西大秦环境科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-stage absorption device for treating high-concentration methanol waste gas, which solves the technical problem that the existing methanol waste gas leakage or fugitive discharge has an impact on the environment

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  • Multi-stage absorption device for treating high-concentration methanol waste gas

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0024] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted from the present invention.

[0025] see figure 1 As shown, in this embodiment, a multi-stage absorption device for processing high-concentration methanol waste gas is provided, including: a pre-absorption tower 2, a fine absorption tower 3 is installed on one side of the pre-ab...

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Abstract

The invention discloses a multi-stage absorption device for treating high-concentration methanol waste gas, and relates to the technical field of methanol waste gas treatment in the chemical industry. The device comprises a pre-absorption tower, a fine absorption tower is arranged on one side of the pre-absorption tower, a wire mesh demister, two filler layers and two distributors are arranged in each of the pre-absorption tower and the fine absorption tower, one filler layer is positioned between two adjacent distributors, and the wire mesh demister is positioned on the upper side of the distributor. Magnetic turning plate liquid level meters are arranged at the lower parts of the pre-absorption tower and the fine absorption tower, so that the liquid level height in the towers can be monitored in real time, the high-concentration methanol waste gas is treated by adopting a multi-stage absorption process, an absorbent is demineralized water or process water, methanol in the waste gas is absorbed, and the methanol content in the waste gas is reduced, so that the tail gas reaches the emission index, and the energy consumption is reduced. The absorption tower adopts a series double-layer packed tower, takes packing as a gas-liquid contact mass transfer interface, and has the advantages of good gas-liquid mass transfer effect, stable discharge, low resistance and high treatment capacity elasticity.

Description

technical field [0001] The invention belongs to the technical field of methanol waste gas treatment in the chemical industry, and in particular relates to a multi-stage absorption device for processing high-concentration methanol waste gas. Background technique [0002] In the field of coal chemical industry, methanol is a common chemical product with great demand. In 2020 alone, my country's annual methanol production will be 68.7 million tons, and the annual increase rate will be more than 10%. There are a lot of methanol waste gas leakage or unorganized emission in production facilities, methanol storage tanks, methanol loading pallets and other places, which have a great impact on the environment. The collection, treatment and emission standards of VOCs can reduce the total emission of VOCs, improve the surrounding environment and achieve green development. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a multi-stage absorption devi...

Claims

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Application Information

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IPC IPC(8): B01D53/14B01D53/18
CPCB01D53/1406B01D53/1487B01D53/18B01D53/185B01D53/1412B01D2252/103B01D2257/70
Inventor 李清敏杜显超杜媛杨超英
Owner 陕西大秦环境科技有限公司
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