Liquid hydrocarbon de-arsenic agent and preparation method thereof
A liquid hydrocarbon and arsenic removal technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of high cost of producing catalyst powder, high cost of preparation and operation , complex catalyst preparation, etc., to achieve the effect of optimized pore size distribution, good mechanical strength, and large arsenic capacity
Image
Examples
Embodiment 1
[0076] Embodiment 1: Preparation of liquid hydrocarbon dearsenic agent
[0077] The implementation steps of this embodiment are as follows:
[0078] Step A: Activated carbon pretreatment
[0079] Put 100g of activated carbon into 300ml of nitric acid solution with a concentration of 0.1mol / L, stir and reflux at a temperature of 75°C for 1 hour, then separate, wash the activated carbon with deionized water until neutral, and dry at a temperature of 100°C for 10.0 Hour, obtain the dry pretreatment active carbon;
[0080] Step B: First Dip
[0081] Add 80 g of the dry pretreated activated carbon obtained in step A to the lanthanum nitrate solution prepared by 2.66 g of lanthanum nitrate and 160 ml of deionized water, soak at room temperature for 6 hours, then dry at a temperature of 100 ° C for 10.5 hours, and then in a nitrogen atmosphere Roasting for 2 hours at a temperature of 250°C;
[0082] Step C: Second Dip
[0083] Add the impregnated activated carbon obtained in ste...
Embodiment 2
[0087] Embodiment 2: Preparation of liquid hydrocarbon dearsenic agent
[0088] The implementation steps of this embodiment are as follows:
[0089] Step A: Activated carbon pretreatment
[0090] Put 100g of activated carbon into 400ml of nitric acid solution with a concentration of 0.25mol / L, stir and reflux at a temperature of 100°C for 2 hours, then separate, wash the activated carbon with deionized water until neutral, and dry at a temperature of 110°C for 11.6 Hour, obtain the dry pretreatment active carbon;
[0091] Step B: First Dip
[0092] Add 82 g of dry pretreated activated carbon obtained in step A to the cerium nitrate solution prepared by 13.29 g of lanthanum nitrate and 164 ml of deionized water, soak at room temperature for 12 hours, separate, dry at a temperature of 110 ° C for 12.0 hours, and then Roasting at 300°C for 4 hours at atmosphere and temperature;
[0093] Step C: Second Dip
[0094] Add the first impregnated activated carbon obtained in step B...
Embodiment 3
[0098] Embodiment 3: Preparation of liquid hydrocarbon dearsenic agent
[0099] The implementation steps of this embodiment are as follows:
[0100] Step A: Activated carbon pretreatment
[0101] Put 100g of activated carbon into 500ml of nitric acid solution with a concentration of 0.5mol / L, stir and reflux at 90°C for 4 hours, then separate, wash the activated carbon with deionized water until neutral, and dry at 105°C for 12.0 hours , to obtain dry pretreated activated carbon;
[0102] Step B: First Dip
[0103] Add 84 g of dry pretreated activated carbon obtained in step A to the lanthanum nitrate solution prepared by 26.6 g of lanthanum nitrate and 168 ml of deionized water, soak at room temperature for 9 hours, separate, then dry at a temperature of 105 ° C for 10.8 hours, and then Roasting under nitrogen atmosphere and temperature 350°C for 3 hours;
[0104] Step C: Second Dip
[0105] Add the impregnated activated carbon obtained in step B for the first time to the ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- IPC
- B01J23/89
- Inventors
- 周晓奇; 李军