Argon-nitre adipate gas recovery system

A technology for recovery of nitrous adipic acid and waste gas, which is applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the waste of water, electricity and sewage treatment fees, incomplete, and unsatisfactory washing effect of argon and nitrous gas And other issues

Inactive Publication Date: 2011-04-20
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
  • Argon-nitre adipate gas recovery system

Examples

Experimental program
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Embodiment Construction

[0020] Accompanying drawing is a kind of specific embodiment of the present invention.

[0021] The adipic acid nitrous waste gas recovery system of the present invention includes a gate valve A installed on the nitrous waste gas header 5 close to the washing tower 6, and an outlet pipe installed on the nitrous 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 nitrous 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 regulating valve an...

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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 adipic acid nitrous waste gas recovery system. (2) Background technology [0002] Alcohol, ketone and nitric acid are oxidized in the oxidation reactor to produce nitrous waste gas. The gas phase pipeline on the top of the oxidation reactor is connected to the inlet of the nitrous waste gas compressor, and the outlet of the compressor is connected to the absorption tower. The function is to compress the nitrous 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 nitrous waste gas volatilized from the nitric acid tank area, 100# and 700# enters the nitrous waste gas header and then is introduced into the lower part of the washing tower. The washing water is sprayed from the upper part of the tower to wash down the argon and nitrate gas, which is a harmless gas. into the atmosphere from the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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