Mercury removal agent for moisture mercury removal and preparation method of mercury removal agent
A mercury removal agent and mercury removal technology, which is applied in the field of mercury removal, can solve problems such as poor structural performance and reduced compressive strength of mercury removal agents, and achieve the effects of promoting sulfidation, improving mercury removal performance, and improving adsorption capacity
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Embodiment 1
[0023] The preparation method of the mercury removal agent used for moisture removal of mercury comprises the following steps:
[0024] (1) Fully mix 100g of activated alumina and 20g of coconut shell activated carbon, add 5g of calcium aluminate cement, add an appropriate amount of distilled water, and then use a ball forming machine to extrude the mixture to make spherical particles with a diameter of 3mm, and the resulting spherical particles The particles were dried at 80°C for 4 hours to obtain alumina carrier particles with a specific surface area of 238.2m 2 / g, the total pore volume is 0.50cm 3 / g.
[0025] (2) 3.2g of copper sulfate and 0.5g of silver nitrate were dissolved in 100mL of deionized water, and 70g of the carrier particles were immersed in the above mixed solution for 4 hours; after the impregnation was complete, the impregnated carrier particles were Calcined at 500°C for 2 hours to obtain the mercury removal agent precursor.
[0026] (3) Dissolve 2....
Embodiment 2
[0028] The preparation method of the mercury removal agent used for moisture removal of mercury comprises the following steps:
[0029] (1) Fully mix 100g of activated alumina and 23g of coconut shell activated carbon, add 5g of calcium aluminate cement, add an appropriate amount of distilled water, and then extrude the mixture with a ball forming machine to make toothed spherical particles with a diameter of 3.8mm. The toothed spherical particles were dried at 80°C for 5 hours to obtain alumina carrier particles with a specific surface area of 213.5m 2 / g, the total pore volume is 0.45cm 3 / g.
[0030] (2) Dissolve 2.7g of copper chloride and 0.5g of silver nitrate in 100mL of deionized water, and immerse 70g of the carrier particles in the above mixed solution for 5 hours; after the impregnation is complete, the soaked carrier particles Calcined at 800°C for 2 hours to obtain the mercury removal agent precursor.
[0031] (3) Dissolve 3.3g of potassium sulfide in 100mL o...
Embodiment 3
[0033] The preparation method of the mercury removal agent used for moisture removal of mercury comprises the following steps:
[0034] (1) Fully mix 100g of activated alumina and 25g of coconut shell activated carbon, add 5g of palygorskite clay, add an appropriate amount of distilled water, and then use a ball forming machine to extrude the mixture to make spherical particles with a diameter of 2.5mm. Spherical particles were dried at 80°C for 4 hours to obtain alumina carrier particles with a specific surface area of 189.8m 2 / g, the total pore volume is 0.40cm 3 / g.
[0035] (2) Dissolve 3.3g of copper carbonate and 0.6g of silver nitrate in 100mL of ammonia water, immerse 70g of the carrier particles in the above-mentioned mixed solution, and the immersion time is 5h; Calcined at ℃ for 2h to obtain the mercury removal agent precursor.
[0036] (3) Dissolve 2.4g of sodium sulfide in 100mL of deionized water, immerse the prepared mercury removal agent precursor in the ...
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