Method for purifying non ferrous metal smelting flue gas and realizing synchronized multiple resource utilization
A technology for smelting flue gas and non-ferrous metals, which is applied in chemical instruments and methods, separation methods, and separation of dispersed particles. It can solve the problems of outlet mercury concentration exceeding emission standards, lower mercury removal efficiency, and high operating costs, so as to save process and equipment, improve removal efficiency, and reduce operating costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0044]A glass bubble absorption device with a volume of 500mL is used as a reactor, and the reactor is filled with 250mL of absorption liquid. The absorption solution uses distilled water as a solvent, and its main components and concentrations are: mercury sulfate (1.48g / L), sulfuric acid (49g / L), and elemental iodine (127g / L). Into the reactor into the zero-valent mercury concentration of 3mg / m 3 The simulated flue gas, the flue gas flow rate is controlled at 1L / min, and the temperature of the reaction system is maintained at about 25 degrees. By monitoring the zero-valent mercury in the tail gas, the results show that the concentration of zero-valent mercury in the tail gas is basically maintained at 30 μg / m 3 From this calculation, the removal efficiency of zero-valent mercury is about 99.0%. The concentration of sulfur dioxide in the reactor is 3mg / m 3 The simulated flue gas, the flue gas flow rate and temperature are still controlled at about 1L / min and 25 degrees res...
Embodiment 2
[0046] A glass wet scrubber with an inner diameter of 100 mm and a length of 1200 mm was used as a reactor for a small test experiment. The composite absorption solution uses distilled water as the solvent, and its main components and concentrations are: mercury sulfate (2.96g / L), sulfuric acid (98g / L), and elemental iodine (254g / L). Pass the simulated flue gas into the wet scrubber, the flue gas volume is 2m 3 / h, the temperature is 25 degrees. At the same time, the composite absorption liquid is sprayed into the wet scrubber through the multi-layer atomization nozzle, the injection amount of the absorption liquid is 10L / h, and the liquid-gas ratio of the reaction system is 5L / m 3 . The zero-valent mercury content in the simulated flue gas is 2mg / m 3 , the concentration of sulfur dioxide is 8000mg / m 3 . The tail gas passing through the wet scrubber was monitored, and the results showed that the zero-valent mercury content in the tail gas was about 12 μg / m 3 , the concen...
Embodiment 3
[0048] Such as figure 1 As shown, a method for purifying non-ferrous metal smelting flue gas and simultaneously realizing multiple resource utilization, the method includes the following steps:
[0049] In the first step, mercuric sulfate, sulfuric acid, elemental iodine and water are mixed and formulated into a composite absorption liquid and stored in the compound absorption liquid dosing tank 8; the main components of the composite absorption liquid are mercuric sulfate, sulfuric acid, elemental iodine and Water, wherein the concentrations of mercury sulfate, sulfuric acid and elemental iodine are: 0.1mol / L, 0.6mol / L and 0.05mol / L respectively, and the temperature of the composite absorption liquid is maintained within the range of 30-60 degrees.
[0050] In the second step, pass the composite absorption liquid V6 in the composite absorption liquid distribution tank 8 into the composite absorption liquid circulation tank 2;
[0051] The third step is to spray the composite...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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