Preparation method of porous fly ash adsorbent and application of adsorbent
An adsorbent and fly ash technology, which is applied in the field of preparation of porous fly ash adsorbent for removing Hg0 from coal-fired flue gas, can solve the problems of complex process, high cost, poor cycle stability, etc., and achieve simple preparation process, Inexpensive and easy to remove
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach 1
[0021] Weigh 100g of sieved fly ash with a particle size of 0.1-0.15mm, mix with 40g of CaO powder, add 40ml
[0022] The deionized water is configured into a mixed solution and placed in a conical flask. After the conical flask is placed in a water bath and stirred at a constant speed for 20 min at 50 °C, the excess liquid is filtered off, and the obtained slurry sample is placed in an air drying oven. Dry at 60°C for 10 hours to obtain powdered fly ash aggregate, and then mix the fly ash aggregate powder with sodium bentonite, sodium carboxymethyl cellulose and powdered corncob in a mass ratio of 12:4:2:1, Add 30ml of deionized water and extrude into cylindrical pellets with a diameter of 2mm and a height of 3mm, and put them in an air drying oven to dry at 50 and 90°C for 5h respectively, and finally rise from room temperature to 700°C in a muffle furnace. The porous fly ash adsorbent I was prepared at constant temperature for 5h and naturally cooled to room temperature. R...
Embodiment approach 2
[0024] Weigh 80g of sieved fly ash with a particle size of 0.1-0.15mm, mix with 20g of CaO powder, add 40ml
[0025] The deionized water is configured into a mixed solution and placed in a conical flask. After the conical flask is placed in a water bath and stirred at a constant speed for 25 min at 47 °C, the excess liquid is filtered off, and the obtained slurry sample is placed in an air drying oven. Dry at 68°C for 8 hours to obtain powdered fly ash aggregate, and then mix the fly ash aggregate powder with sodium bentonite, sodium carboxymethyl cellulose and powdered corncob in a mass ratio of 12:5:1:2, Add 30ml of deionized water and extrude to make cylindrical particles with a diameter of 2mm and a height of 2mm, and put them in an air drying oven to dry at 50 and 90 °C for 5 hours, and finally in a muffle furnace from room temperature to 760 °C. The porous fly ash adsorbent II was prepared at constant temperature for 3h and naturally cooled to room temperature. The remo...
Embodiment approach 3
[0027] Weigh 80g of sieved fly ash with a particle size of 0.1-0.15mm, mix with 20g of CaO powder, add 40ml
[0028] The deionized water is configured as a mixed solution and placed in a conical flask. After the conical flask is placed in a water bath and stirred at a constant speed for 20 min at 50 °C, the excess liquid is filtered off, and the obtained slurry sample is placed in an air drying oven. Dry at 60°C for 10 hours to obtain powdered fly ash aggregate, and then mix the fly ash aggregate powder with sodium bentonite, sodium carboxymethyl cellulose and powdered corncob in a mass ratio of 12:5:1:3, Add 30ml of deionized water and extrude to make cylindrical particles with a diameter of 3mm and a height of 3mm, and put them in an air drying oven to dry at 50 and 90 °C for 5 hours respectively, and finally increase the temperature from room temperature to 730 °C in a muffle furnace. The porous fly ash adsorbent III was prepared by maintaining at constant temperature for 3...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More