Macadamia nut shell/pecan nut shell biocarbon and preparation method thereof
A technology of pecan shells and macadamia nuts, which is applied in chemical instruments and methods, other chemical processes, water/sewage treatment, etc., can solve problems such as shortages, achieve the goals of ensuring adsorption performance, promoting resource utilization, and improving purification effects Effect
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Embodiment 1
[0020] One, a kind of macadamia husk / pecan husk biochar, is prepared according to the following steps:
[0021] 1. Biomass raw material pretreatment
[0022] The collected macadamia husks and pecan husks are pulverized and sieved with an 80-mesh sieve.
[0023] 2. Preparation method
[0024] (1) Mix the crushed macadamia husks and pecan husks in a mass ratio of 1:1, add 1.5mol / L hydrochloric acid solution and stir evenly, seal and let stand for 24 hours, then add 0.1mol / L cesium nitrate solution Mix 5ml, seal and let stand for 12h, and air dry naturally.
[0025] (2) Put the above-mentioned treated biomass raw material in a porcelain crucible for compaction, cover it, and pyrolyze it at 600°C for 180min, and the heating rate of pyrolysis is 10°C / min. After the pyrolysis reaction is over, take out the crucible after cooling to room temperature.
[0026] (3) Mix the biochar prepared above with H at a concentration of 1.0mol / L 2 o 2 Mix evenly, shake in a shaker at a spe...
Embodiment 2
[0039] One, a kind of macadamia husk / pecan husk biochar, is prepared according to the following steps:
[0040] 1. Pretreatment of biomass raw materials: crush the collected macadamia husks and pecan husks and sieve through an 80-mesh sieve.
[0041] 2. Preparation method
[0042] (1) Mix the crushed macadamia husks and pecan husks at a mass ratio of 3:1, add 1.5mol / L hydrochloric acid solution and stir evenly, seal and let stand for 24 hours, then add 0.1mol / L cesium nitrate Mix 5ml of the solution, seal it and let it stand for 12h, and let it air dry naturally.
[0043] (2) Put the above-mentioned treated biomass raw material in a porcelain crucible for compaction, cover it, and pyrolyze it at 600°C for 180min, and the heating rate of pyrolysis is 10°C / min. After the pyrolysis reaction is over, take out the crucible after cooling to room temperature.
[0044] (3) Mix the biochar prepared above with H at a concentration of 1.0mol / L 2 o 2 Mix evenly, shake in a shaker ...
Embodiment 3
[0057] One, a kind of macadamia husk / pecan husk biochar, is prepared according to the following steps:
[0058] 1. Pretreatment of biomass raw materials: crush the collected macadamia husks and pecan husks and sieve through an 80-mesh sieve.
[0059] 2. Preparation method
[0060] (1) Mix the crushed macadamia husks and pecan husks at a mass ratio of 5:1, add 1.5mol / L hydrochloric acid solution and stir evenly, seal and let stand for 24 hours, then add 0.1mol / L cesium nitrate solution Mix 5ml, seal and let stand for 12h, and air dry naturally.
[0061] (2) Put the above-mentioned treated biomass raw material in a porcelain crucible for compaction, cover it, and pyrolyze it at 600°C for 180min, and the heating rate of pyrolysis is 10°C / min. After the pyrolysis reaction is over, take out the crucible after cooling to room temperature.
[0062] (3) Mix the biochar prepared above with H at a concentration of 1.0mol / L 2 o 2 Mix evenly, shake in a shaker at a speed of 400r / m...
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