Wood-based porous carbon material for CO2 adsorption and preparation method thereof
A porous carbon material, CO2 technology, applied in separation methods, chemical instruments and methods, carbon compounds, etc., can solve the problems of equipment corrosiveness, high regeneration energy consumption, complex operating conditions, etc., and achieve low cost and high pore volume. , the effect of broad application prospects
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specific Embodiment approach 1
[0035] one for CO 2 A method for preparing an adsorbed wood-based porous carbon material, comprising the steps of:
[0036] Step 1. Weigh a certain amount of eucalyptus wood powder into a three-necked bottle, add a delignification solvent, heat to 110°C, stir at a constant temperature for 6 hours, and cool the mixture to room temperature for later use;
[0037] Step 2, adding acetone solvent to the mixture obtained in step 1 and stirring for 6 hours, then filtering off the acetone solvent and washing with distilled water, then vacuum drying at 60°C for 24 hours to obtain delignified wood powder;
[0038] Step 3, adding an activator to the delignified wood powder obtained in step 2, mixing evenly, adding distilled water and stirring evenly, drying at 60°C for 24 hours to obtain activated wood powder;
[0039] Step 4. Heat the activated wood powder obtained in step 3 to 700°C in a tube furnace under gas protection, and keep it for 1h. After cooling, wash with hydrochloric acid ...
specific Embodiment approach 2
[0055] one for CO 2 A method for preparing an adsorbed wood-based porous carbon material, comprising the steps of:
[0056] Step 1. Weigh a certain amount of eucalyptus wood powder into a three-necked bottle, add a delignification solvent, heat to 120°C, stir at a constant temperature for 4 hours, and cool the mixture to room temperature for later use;
[0057] Step 2, adding acetone solvent to the mixture obtained in step 1 and stirring for 4 hours, then filtering off the acetone solvent and washing with distilled water, then vacuum drying at 50°C for 24 hours to obtain delignified wood powder;
[0058] Step 3, adding an activator to the delignified wood powder obtained in step 2, mixing evenly, adding distilled water and stirring evenly, drying at 50°C for 30 hours to obtain activated wood powder;
[0059] Step 4, heating the activated wood powder obtained in step 3 to 900°C in a tube furnace under gas protection, and keeping it for 1h, washing with hydrochloric acid soluti...
specific Embodiment approach 3
[0070] one for CO 2 A method for preparing an adsorbed wood-based porous carbon material, comprising the steps of:
[0071] Step 1. Weigh a certain amount of eucalyptus wood powder into a three-necked bottle, add a delignification solvent, heat to 90°C, stir at a constant temperature for 8 hours, and cool the mixture to room temperature for later use;
[0072] Step 2. Add acetone solvent to the mixture obtained in step 1 and stir for 8 hours, then filter off the acetone solvent and wash with distilled water, then vacuum dry at 70°C for 36 hours to obtain delignified wood powder;
[0073] Step 3, adding an activator to the delignified wood powder obtained in step 2, mixing evenly, adding distilled water and stirring evenly, drying at 50°C for 36 hours to obtain activated wood powder;
[0074] Step 4, heating the activated wood flour obtained in step 3 to 500°C in a tube furnace under gas protection, and keeping it for 3h, washing with hydrochloric acid solution and distilled w...
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