Biochar production method and composition therefrom
AssigneeUT-Battelle, LLC
InventorsJames W. Lee, Archibald C. Buchanan, III, Barbara R. Evans, Michelle K. Kidder
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Abstract
The invention is directed to a method for producing an oxygenated biochar material possessing a cation-exchanging property, wherein a biochar source is reacted with one or more oxygenating compounds in such a manner that the biochar source homogeneously acquires oxygen-containing cation-exchanging groups in an incomplete combustion process. The invention is also directed to oxygenated biochar compositions and soil formulations containing the oxygenated biochar material.
Claims30
An oxygenated biochar composition possessing an oxygen-to-carbon molar ratio of at least 0.3:1.
An oxygenated biochar composition possessing a cation exchange capacity of at least 140 mmol/kg.
A method for producing an oxygenated biochar material possessing a cation-exchanging property, the method comprising reacting a biochar source under mixing conditions with at least one oxygenating compound under incomplete combustion conditions, wherein the method produces an oxygenated biochar having an oxygen-to-carbon molar ratio of at least 0.3:1 or a cation exchange capacity of at least 140 mmol/kg and a homogeneous distribution of oxygen-containing cation-exchanging groups.
Dependencies are inferred from the claim text.