Biochars and biochar treatment processes
First Claim
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1. A method for treating a porous carbonaceous material having a plurality of pores, the method comprising the steps of:
- placing the porous carbonaceous material in a vessel capable of sustaining pressure change, where the vessel has an original pressure;
adding a treating liquid to the vessel;
varying the pressure in the vessel using a vacuum to force at least part of the treating liquid into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure;
moisture adjusting the porous carbonaceous material in the vessel by at least partially drying the porous carbonaceous material;
placing an additive in the vessel; and
again varying the pressure in the vessel using a vacuum to force at least part of the additive into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure.
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Abstract
Treated biochar and methods for treating biochar are provided. The method for treating the biochar includes forcing, assisting or accelerating the movement of an infiltrant into the pores of the biochar, whereby the treatment affects properties of the biochar that provide for a more reliable and predictable biochar for use in various applications, including, but not limited to, agricultural applications.
129 Citations
29 Claims
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1. A method for treating a porous carbonaceous material having a plurality of pores, the method comprising the steps of:
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placing the porous carbonaceous material in a vessel capable of sustaining pressure change, where the vessel has an original pressure; adding a treating liquid to the vessel; varying the pressure in the vessel using a vacuum to force at least part of the treating liquid into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure; moisture adjusting the porous carbonaceous material in the vessel by at least partially drying the porous carbonaceous material; placing an additive in the vessel; and again varying the pressure in the vessel using a vacuum to force at least part of the additive into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for treating a porous carbonaceous material having a plurality of pores, the method comprising the steps of:
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placing the porous carbonaceous material in a vessel capable of sustaining pressure change, where the vessel has an original pressure; adding a treating liquid to the vessel; varying the pressure in the vessel to infuse at least part of the treating liquid into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure; placing an additive in the vessel; and again varying the pressure in the vessel to infuse at least part of the additive into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for treating a porous carbonaceous material having a plurality of pores, the method comprising the steps of:
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placing the porous carbonaceous material in a vessel capable of sustaining pressure change, where the vessel has an original pressure; adding a treating liquid to the vessel; varying the pressure in the vessel to force at least part of the treating liquid into the pores of the porous carbonaceous material and then returning the pressure in the vessel to its original pressure or to atmospheric pressure; and agitating the porous carbonaceous material while varying the pressure in the vessel. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification