Enhancing biochar performance using pyrolysis acid stream
First Claim
Patent Images
1. A method of producing a modified biochar comprising:
- a) obtaining an acid-containing solution from a stream produced in a process for pyrolyzing biomass, wherein the acid-containing solution is produced from pyrolysis at temperatures between 300°
C. and 600°
C.; and
b) contacting a biochar with at least a portion of the acid-containing solution to provide a modified biochar.
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Abstract
A method of producing a modified biochar and the use of the biochar as a soil amendment. The modified biochar can be produced by contacting biochar with an acid-containing solution obtained from an acid containing stream produced in a pyrolysis process, which produces biochar. In accordance with one aspect, a cellulose-containing biomass is pyrolyzed to generate a gaseous organic acid-containing stream, which is condensed to produce an organic acid-containing solution. The biochar is then modified by contact with the organic acid-containing solution.
33 Citations
29 Claims
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1. A method of producing a modified biochar comprising:
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a) obtaining an acid-containing solution from a stream produced in a process for pyrolyzing biomass, wherein the acid-containing solution is produced from pyrolysis at temperatures between 300°
C. and 600°
C.; andb) contacting a biochar with at least a portion of the acid-containing solution to provide a modified biochar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification