Unlock instant, AI-driven research and patent intelligence for your innovation.

System for recovering and treating tail gas from nitrile rubber production

Inactive Publication Date: 2019-03-29
江苏龙泰环保设备制造有限公司
View PDF12 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, both the absorption method and the adsorption method need to regenerate the absorbent or adsorbent, which increases the operating cost and causes secondary pollution; the equipment investment cost of the plasma method is high, which limits its application; when the biological method treats tail gas, the gas Large resistance, slow degradation rate, bulky equipment, easily affected by pollutant concentration and temperature, so there are still certain difficulties in the treatment of exhaust gas
In the prior art, the above-mentioned single treatment technology is basically used to process the tail gas produced in the production process of nitrile rubber, resulting in a relatively low tail gas recovery rate and high energy consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System for recovering and treating tail gas from nitrile rubber production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Reactor 1 vent pipe is connected to the first-level washing tower of washing tower 2, and the demulsification device is installed on the first-level washing tower, and the pipe is connected to RTO5 equipment on the demulsification device, the second-level washing tower is connected to the first-level washing tower, and the third-level washing tower is connected to the first-level washing tower. The scrubber is connected to the secondary scrubber, the primary condenser 301 is connected to the tertiary scrubber, the condensation temperature of the primary condenser 301 is 0°C, the secondary condenser 302 is connected to the primary condenser 301, and the secondary condenser The condensation temperature of 302 is -25°C, butadiene recovery tank 4 is installed at the lower end of secondary condenser 302 to recover condensed butadiene, RTO5 is connected with secondary condenser 302, and the number of RTO5 heat storage chambers is 3 , Install a combustion-supporting fan, a wate...

Embodiment 2

[0026] According to the method of Example 1, a kind of nitrile rubber production tail gas recovery treatment system is designed, the difference is that: the condensation temperature of the primary condenser 301 is -5°C, and the condensation temperature of the secondary condenser 302 is -30°C.

Embodiment 3

[0028] According to the method of embodiment 1, design a kind of nitrile rubber production tail gas recycling treatment system, difference is: the quantity of RTO5 regenerator is 5 chambers.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a system for recovering and treating tail gas from nitrile rubber production. The system comprises a reaction kettle, a washing tower, a condenser and an RTO (regenerative incinerator), wherein the reaction kettle is connected with the washing tower by means of pipeline output; the washing tower is connected with the condenser by means of pipeline output; the condenser is separately connected with a butadiene recovery tank and the RTO by means of pipeline output; the RTO is connected with a chimney; the washing tower is connected with a primary condenser I by means of pipeline input, and the primary condenser I is connected with an acrylonitrile recovery tank I by means of pipeline output; the primary condenser I is connected with a vacuum pump by mean of pipeline input; the RTO is connected with a primary condenser II by means of pipeline input, and the primary condenser II is connected with an acrylonitrile recovery tank II by means of pipeline output; the primary condenser II is connected with an acrylonitrile storage tank by means of pipeline input. The system provided by the invention is high in recovery efficiency, good in operation safety and stability, low in energy consumption, small in floor space and free from secondary pollution.

Description

technical field [0001] The invention relates to the technical field of exhaust gas recovery, in particular to a recovery and treatment system for tail gas produced by nitrile rubber. Background technique [0002] In the production of nitrile rubber, the main raw materials are butadiene and acrylonitrile. The production process involves the venting of the reactor, the cooling of the vacuum pump and the breathing of the acrylonitrile storage tank. During this process, there will be butadiene and acrylonitrile Exhausted, these tail gases can cause pollution to water bodies, soil and the atmosphere, seriously affecting human production and life. Therefore, it is of great significance to recycle the tail gas produced in the production process of nitrile rubber. [0003] At present, the technologies used for tail gas treatment at home and abroad include absorption method, porous medium adsorption method, plasma method, biological method and so on. Among them, both the absorption...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01D53/00F23G7/06
CPCB01D53/002B01D53/1487B01D53/18B01D2252/103B01D2257/408B01D2257/702F23G7/06F23G2209/14
Inventor 韩以波史玉芬
Owner 江苏龙泰环保设备制造有限公司