Preparation method of desulphurization adsorbent and obtained product and application
An adsorbent and accelerator technology, which is used in the preparation of desulfurization adsorbents and the resulting products and application fields, can solve the problems of reduced adsorbent activity and small pore volume of adsorbents, and achieves improved activity and stability. The effect of abrasion resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] 1.03 kg of nano zinc oxide (Alfa Aesar company, analytically pure, 20-30nm) was slowly added to 1.8 kg of 15% nitric acid (chemically pure, produced by Beijing Chemical Plant) solution under stirring and stirred for 1 hour to form a white Sol.
[0047] With 4.0 kg of zinc oxide powder (produced by Beijing Chemical Plant, >99.7%), 1.46 kg of kaolin (Qilu catalyst branch, containing 1.20 kg on a dry basis, the kaolin contains 51wt% alumina and 48wt% silicon oxide) and 2.09 kg of expanded Perlite (Qilu Catalyst Branch, containing 2.01 kg on a dry basis, the expanded perlite contains 20 wt% alumina and 74 wt% silica) was added to 5.8 kg of deionized water, and stirred for 30 minutes. Then add the above-mentioned zinc oxide sol, mix and stir for 1 hour to obtain a carrier slurry.
[0048] The carrier slurry uses Niro Bowen Nozzle Tower TM The model spray dryer is used for spray drying, the spray drying pressure is 8.5 to 9.5MPa, the inlet temperature is below 500°C, and th...
Embodiment 2
[0051] With 2.18 kilograms of kaolin (Qilu Catalyst Branch, containing 1.81 kilograms on a dry basis), 1.75 kilograms of zinc hydroxide (Sinopharm Chemical Reagent Company, analytically pure) and 3.0 kilograms of neutral water (pH value is 6-8) are mixed under stirring Finally, add 75 grams of concentrated nitric acid (chemically pure, produced by Beijing Chemical Plant) and stir and heat up to above 60°C for acidification for 1 hour to form a zinc sol containing kaolin. When the temperature dropped below 40° C., 5.0 kg of zinc oxide (Headhorse Company, >99.7%) powder was added, mixed and stirred for 1 hour to obtain a carrier mixture slurry.
[0052] Referring to the method of Example 1, the carrier was spray-dried and molded and the active component nickel was introduced to obtain the adsorbent A2. The chemical composition of the adsorbent A2 is: the content of zinc oxide is 64.3wt%, the content of silicon dioxide is 8.7wt%, the content of aluminum oxide is 9.2wt%, and nicke...
Embodiment 3
[0054] Get 1.92 kilograms of zinc formate dihydrate (Sinopharm Chemical Reagent Company, >98.5%) and dissolve it in 5.7 kilograms of deionized water, and add 100 milliliters of concentrated ammonia water (chemically pure, produced by Beijing Chemical Factory) after the zinc acetate is completely dissolved. Then stir for 1 hour, and the zinc acetate peptizes to generate a transparent zinc sol.
[0055] Add 1.45 kg of kaolin (Qilu Catalyst Branch, containing 1.20 kg on a dry basis), 1.32 kg of expanded perlite (Qilu Catalyst Branch, containing 1.30 kg on a dry basis) and 5.0 kg of zinc oxide powder (Headhorse Company) to the above-mentioned zinc sol , >99.7%), mixed and then stirred for 1 hour to obtain carrier slurry.
[0056] Referring to the method of Example 1, the carrier was spray-dried and molded and the active component nickel was introduced to obtain the adsorbent A3. The chemical composition of the adsorbent A3 is as follows: the content of zinc oxide is 60.0wt%, the ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More