Tail gas recovery equipment used in pinacolone production process

Abstract

The invention relates to the technical field of tail gas recovery, in particular to tail gas recovery equipment used in the pinacolone production process. The equipment comprises an absorption unit, a gas filtering unit and a supporting frame; the absorption unit is mounted at the upper end of the gas filtering unit through a hoop; the problems that the tail gas is easy to leak in the process of treating the tail gas discharged in the existing pinacolone production process, and it is difficult to ensure that the tail gas is completely absorbed by the water solution, in the treatment process of discharged tail gas, the efficiency of evaporating hydrochloric acid gas by adopting a heating mode at present is low, and complete separation of the hydrochloric acid gas and pinacolone gas is difficult to guarantee, the hydrochloric acid gas is easy to leak due to infirm connection between receiving equipment and the pipeline after being collected can be solved. the tail gas recovery treatment effect in the pinacolone production process is guaranteed, and the tail gas treatment efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of tail gas recovery, in particular to a tail gas recovery device used in the production process of pinatonone. Background technique [0002] Pinatone is a colorless liquid chemical that is soluble in ethanol, ether, acetone, and water and has a minty odor. Pinatone is used as a solvent and extractant, and can also be used in organic synthesis. Harmful if swallowed. Highly flammable. Burns to produce irritating smoke. Dry powder, dry sand, carbon dioxide and foam can be used to extinguish the fire. [0003] Pinacolone can be obtained by acetone method, isoamyl alcohol method and tert-amyl alcohol method. Alcohol is dehydrated at high temperature to generate isopentene, which is obtained by reacting isopentene and formaldehyde in the presence of inorganic acid; tert-amyl alcohol method is obtained by condensing tert-amyl alcohol with formaldehyde in hydrochloric acid and rearranging isomerization; The tail...

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Problems solved by technology

[0003] Pinacolone can be obtained by acetone method, isoamyl alcohol method and tert-amyl alcohol method. Alcohol is dehydrated at high temperature to generate isopentene, which is obtained by reacting isopentene and formaldehyde in the presence of inorganic acid; tert-amyl alcohol method is obtained by condensing tert-amyl alcohol with formaldehyde in hydrochloric acid and rearranging isomerization; The tail gas discharged during the production process will be mixed with hydrochloric acid gas, and there is also some pinatone in the exhaust gas. The exhaust gas mixed with hydrochloric acid gas will pollute the atmospheric environment when discharged into the air; currently, the tail gas emitted during the production process of pinatone During the treatment, there are mainly the following problems: part of the tail gas is easy to leak during the process of tail gas treatment, it is difficult to ensure that the tail gas is completely absorbed by the aqueous solution, and during the treatment of the exhaust gas, the current method of evaporating hydrochloric acid gas by heating is inefficient and difficult Ensure the complete separation of hydrochloric acid gas and pinatone gas, and after the hydrochloric acid gas is collected, it is easy to leak due to the unreliable connection between the receiving equipment and the pipeline

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