Preparation method of high-performance carbon molecular sieve for separating carbon dioxide/methane
A carbon dioxide and carbon molecular sieve technology, applied in separation methods, chemical instruments and methods, methane capture, etc., to achieve high adsorption selectivity, improve efficiency, and reduce costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] After drying, the corncobs are crushed to a length of about 1 cm, mixed and kneaded with a binder at a mass ratio of 1:1, and then extruded into a column shape of φ0.5 cm×1 mm. Carbonize at 500°C for 1 hour under a nitrogen atmosphere with a programmed temperature rise rate of 5°C / min. 2 CO 3 and a small amount of ethanol in an alkaline solution for 4 hours, open the mouth and dry it in a vacuum drying oven at 120°C, then put it into a closed crucible with small holes, that is, a semi-closed system, and place it in a muffle furnace under a static air atmosphere without an atmosphere. Or program the temperature in a tube furnace to 600°C for 1 hour, then continue to heat up to 800°C for 45 minutes at a rate of 5°C / min, then cool to room temperature naturally, take it out and wash with water until neutral. The activated product was soaked in diethanolamine solution for 4 hours at room temperature, dried in a vacuum oven, placed in a microwave oven, and programmed to heat...
Embodiment 2
[0022] After the tobacco rod is dried, it is crushed to a length of about 1 cm, mixed and kneaded with a binder at a mass ratio of 1.5:1, and then extruded into a column shape of φ0.5 cm×1 mm. Carbonize at 400°C for 1 hour under a nitrogen atmosphere with a programmed temperature rise rate of 5°C / min. 2 CO 3and a small amount of ethanol in an alkaline solution for 4 hours, open the mouth and dry it in a vacuum oven at 120°C, then put it into a semi-closed system as above, and heat it up to a constant temperature of 600°C in a muffle furnace or tube furnace under a static air atmosphere. After 1h, continue to heat up to 800°C for 45min at a constant temperature of 5°C / min, then cool naturally to room temperature, take it out and wash with water until neutral. The activated product was soaked in diethanolamine solution at room temperature for 4 hours, after drying, the sample was placed in a microwave oven, and the temperature was programmed to 500°C under a nitrogen atmosphere...
Embodiment 3
[0024] After the coconut shell is dried, it is crushed to a length of about 1cm, mixed with a binder at a mass ratio of 1.5:1 and kneaded, and then extruded into a column shape of φ0.5cm×1mm. Carbonize at 500°C for 1 hour under a nitrogen atmosphere, with a programmed temperature rise rate of 5°C / min. 2 CO 3 and a small amount of ethanol in an alkaline solution for 4 hours, open the mouth and dry it in a vacuum oven at 120°C, then put it into a semi-closed system as above, and heat it up to a constant temperature of 500°C in a muffle furnace or tube furnace under a static air atmosphere. After 1h, continue to heat up to 750°C for 1h at a constant temperature at a rate of 5°C / min, then cool down to room temperature naturally, take it out and wash with water until neutral. The activated product was soaked in diethanolamine solution at room temperature for 4 hours, after drying, the sample was placed in a microwave oven, and the temperature was programmed to rise to 400°C for 1 ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| adsorption capacity | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More