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Argon-nitre adipate gas recovery system

A technology for waste gas recovery and adipic acid, which is applied in the field of adipic acid argon nitrate waste gas recovery system, which can solve the problems of incompleteness, unsatisfactory argon nitrate gas washing effect, waste of water, electricity and sewage treatment costs, etc.

Inactive Publication Date: 2009-07-29
HONGYE CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will waste a lot of water, electricity and sewage treatment fees, and the washing effect of argon and nitrate gas is not ideal and not thorough

Method used

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  • Argon-nitre adipate gas recovery system

Examples

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Embodiment Construction

[0019] Accompanying drawing is a kind of specific embodiment of the present invention.

[0020] The adipic acid argon nitrate waste gas recovery system of the present invention includes a gate valve A installed on the argon nitrate waste gas header 5 near the washing tower 6, and an outlet pipe installed on the argon nitrate waste gas header before the gate valve A , the output end of the lead-out pipe is connected to the inlet of the argon and nitrate gas compressor 7, and the middle part of the lead-out pipe is installed with a pressure regulating valve 2 and a low-pressure cut-off valve 3 connected in series, and two pressure transmitters for controlling the pressure regulating valve 2 and the low-pressure cut-off valve 3 The pressure point of 8 is located at different positions in front of the outlet pipe on the argon nitrate waste gas header. A gate valve 1 and 4 are respectively installed at both ends of the outlet pipe, and they are connected in series with the pressure...

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PUM

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Abstract

The invention relates to an adipic acid nitrous waste gas recovery system, which is characterized by comprising a gate valve arranged in a nitrous waste gas collecting pipe close to a washer and an outlet pipe arranged in the nitrous waste gas collecting pipe in front of the gate valve, wherein the outlet end of the outlet pipe is connected with nitrous gas compressor inlet, the middle part of the outlet pipe is provided with a pressure control valve and a low-pressure shutoff valve which are connected serially and mutually, and pressure points of two pressure transmitters controlling the pressure control valve and the low-pressure shutoff valve are arranged on the nitrous waste gas collecting pipe at different position in from of the outlet pipe. The system has the advantages of saving water including primary water and chilled water, saving electricity, recovering the nitrous waste gas into nitric acid and saving wastewater treatment cost.

Description

(1) Technical field [0001] The invention relates to chemical equipment, in particular to an adipate argon nitrate waste gas recovery system. (2) Background technology [0002] Alcohol, ketone and nitric acid are oxidized in the oxidation reactor to produce argon nitrate waste gas. The gas phase pipeline at the top of the oxidation reactor is connected to the inlet of the argon nitrate waste gas compressor, and the outlet of the compressor is connected to the absorption tower, which is used to compress the argon nitrate waste gas and enter the absorption tower to be absorbed by water or dilute nitric acid to become a nitric acid solution. In the original design, the argon nitrate waste gas volatilized from the nitric acid tank area, 100# and 700# enters the argon nitrate waste gas header and then is introduced into the lower part of the washing tower, and the washing water is sprayed from the upper part of the tower to wash the argon nitrate gas, which is a harmless gas. int...

Claims

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Application Information

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IPC IPC(8): B01D53/18
Inventor 游同想余洪勇乔万福杜江张广远孟琦孔建军魏付伦邱东涛
Owner HONGYE CHEM GRP
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