Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for preparing ammonium persulphate with ammonia and urea solution flue gas purified absorption solution

An ammonium persulfate and flue gas purification technology, applied in the electrolysis process, electrodes, diaphragms, etc., can solve problems such as complex components, and achieve the effects of high separation efficiency, low energy consumption, and no secondary pollution emissions.

Active Publication Date: 2014-11-19
SOUTHEAST UNIV +1
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively complex components in the ammonia / urea solution flue gas simultaneous desulfurization and denitrification absorption liquid, and a small amount of additives, the electrolytic production (NH 4 ) 2 S 2 o 8 In addition to the theoretical and experimental research conducted by Xiong Yuanquan's research team at Southeast University, there are no other related research reports at home and abroad.

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
  • Device and method for preparing ammonium persulphate with ammonia and urea solution flue gas purified absorption solution
  • Device and method for preparing ammonium persulphate with ammonia and urea solution flue gas purified absorption solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Embodiment 1: the device that ammonia and urea solution flue gas purification absorbing liquid of the present invention makes ammonium persulfate, comprises by being arranged on the plate type diaphragm 5, anode chamber 1 and cathode chamber 2 in the middle of the electrolytic cell body, is arranged in the anode chamber 1 There are an anode chamber outlet 6 and an anode chamber inlet 7, a titanium platinum-plated anode plate 3 is arranged on the inner wall, a cathode chamber outlet 8 and a cathode chamber inlet 9 are arranged in the cathode chamber 2, a titanium cathode plate 4 is arranged on the inner wall, and the anode chamber inlet 7 is connected with an anolyte liquid supply pump 16 and an anode flowmeter 18, the flow at the inlet of the anode chamber is controlled by the anolyte liquid supply pump 16 and the anode flowmeter 18, and the cathode chamber inlet 9 is connected with a catholyte liquid supply pump 17 and a cathode flowmeter 19. The inlet flow rate of the a...

Embodiment 2

[0035] Embodiment 2: pump the absorption liquid in the absorption liquid storage tank 19 at the bottom of the desulfurization and denitrification absorption tower 18 into the neutralization reactor 23 through the neutralization pump 22 of the desulfurization and denitrification circulating liquid, and neutralize the liquid of the circulating liquid by adding a certain amount of ammonia water. The pH is adjusted between 4-6, and the neutralized solution (the concentration of ammonium sulfate in the solution is 328g / L, the mass concentration of ammonium sulfite is 56g / L, and the mass concentration of ammonium nitrate is 12g / L, the mass concentration of ammonium nitrite is 4.3g / L, the mass concentration of urea is 1.15g / L, the mass percentage concentration of diethanolamine and triethanolamine is 0.015%, the anode oxygen suppression additive ammonium thiocyanate (or polyphosphoric acid Ammonium) accounts for 0.01% mass percentage concentration of the absorption liquid obtained by ...

Embodiment 3

[0036] In embodiment 3, the mass percentage concentration of the sulfuric acid solution pumped into the cathode chamber 2 is 40%, and the oxygen inhibitor pumped into the anode chamber 1 accounts for the mass percentage concentration of the absorption liquid obtained by the ammonia and urea solution flue gas purification process is 0.055%. The basic process and other parameters are the same as in Example 1.

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 device and a method for preparing ammonium persulphate with an ammonia and urea solution flue gas purified absorption solution. The device essentially comprises a vessel body, a negative plate, a positive plate, a membrane, an anolyte storage tank, an anolyte supply pump, an anode flow meter, a catholyte storage tank, a catholyte supply pump, a cathode flow meter and a DC voltage-stabilized stable-state power supply. The positive plate and the negative plate are arranged opposite to each other, and are both connected to the power supply to generate an electric field between the negative plate and the positive plate. An electrolyzer is used as the basis for preparing the ammonium persulphate with a desulfurization and denitrification absorption solution. The anolyte and the catholyte are separated by the flat-plate type membrane. With such improvements as well as properly controlled reaction voltage, temperature and time, ammonium sulphate products with low added value can be effectively converted into ammonium persulphate with high added value. The method for preparing the ammonium persulphate with the ammonia and urea solution flue gas purified absorption solution is easy for operation, applicable to the processing of the desulfurization and denitrification absorption solution, eco-friendly and highly efficient.

Description

technical field [0001] The invention belongs to the field of processing flue gas desulfurization and denitrification absorption liquid in atmospheric environmental protection, and relates to a device and a method for preparing ammonium persulfate by utilizing ammonia and urea solution flue gas purification absorption liquid. Background technique [0002] At present, whether it is ammonia flue gas desulfurization, wet lime-gypsum flue gas desulfurization, or simultaneous wet flue gas desulfurization and denitrification, there is a secondary green treatment problem with high added value of the absorption liquid. In my country's actual projects, wet flue gas desulfurization and denitrification absorption liquids are seldom realized in a complete sense of recycling resources, which has caused a large number of wet flue gas desulfurization and denitrification absorption liquids in my country to produce secondary pollution to varying degrees. The problem, especially the secondary p...

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): C25B1/28C25B9/08C25B11/10C25B13/04C25B9/19
Inventor 熊源泉王颖张平
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com