Method for carrying out tail gas treatment by using methylal tail gas condenser

A technology of tail gas treatment and methylal, which is applied in the field of glyphosate, can solve the problems of difficult recovery of treatment means, environmental protection difficulty, and large-scale venting, and achieve the effects of slow flow rate, prolonged residence time, and reduced environmental pressure

Inactive Publication Date: 2014-10-01
ANHUI DONGZHI GUANGXIN AGROCHEMICAL CO LTD
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Problems solved by technology

The main component of methylal tail gas is methylal. Because methylal has a low boiling point (42.3°C), it is difficult to recover by conventional treatment methods, and it is easy to cause a large amount of venting. In addition to increasing consumption, it also increases the difficulty of environmental protection

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  • Method for carrying out tail gas treatment by using methylal tail gas condenser

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, the method of using the methylal tail gas condenser for tail gas treatment includes the alkali methanol tank from the tank area, the first-stage tail gas condenser for methylal, the second-level tail gas condenser for methylal, the methanol removal tank and the irrigation area The alkali methanol tank, the alkali methanol tank from the tank area is connected to the methylal rectifying tower through the methylal preheater, and the methylal rectifying tower is connected with a primary condenser and a methylal reboiler; The methylal rectification tower is connected to the methylal first-stage tail gas condenser through the methylal reflux tank, and the outlet of the methylal first-stage tail gas condenser is connected to the methylal second-level tail gas condenser and the methylal reflux tank. The inlets of t...

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Abstract

The invention discloses a method for carrying out tail gas treatment by using a methylal tail gas condenser. The method is characterized in that methylal tail gas which is from a tank region alkali methyl alcohol tank passes through a methylal preheater, a methylal rectifying tower, a methylal first-class tail gas condenser, a methylal second-class tail gas condenser as well as a liquid seal groove and an active carbon tank sequentially, and methylal, methanol and methyl alcohol in the methylal tail gas are recycled. The method provided by the invention has the advantages that discharging volume is greatly reduced through a perfect methylal tail gas processing device and a perfect methylal tail gas processing method, methylal recovery is improved, and the environment protection pressure is reduced.

Description

technical field [0001] The invention relates to the technical field of glyphosate, in particular to a tail gas treatment method using a methylal tail gas condenser. Background technique [0002] Methylal has excellent physical and chemical properties, that is, good solubility, low boiling point, and good compatibility with water. It can be widely used in cosmetics, medicines, household products, industrial automotive supplies, insecticides, leather polishes, and rubber industries. In products such as paints, inks, etc., because methylal has good degreasing ability and volatility, it can replace F11 and F113 and chlorinated solvents as a cleaning agent, so it is a substitute for Freon and reduces emissions of volatile organic compounds (VOCs) , Environmentally friendly products that reduce air pollution. Because of its good combustion performance, it has been widely used in petroleum oil additives recently. At present, the ingredients used as petroleum oil additives are: me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/14B01D53/02C07C43/30C07C41/58
Inventor 陈永贵黄中桂薛枫熊栅栅金斐段学军陈建平钱潮涌
Owner ANHUI DONGZHI GUANGXIN AGROCHEMICAL CO LTD
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