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    Enhanced biochar
    4.
    发明授权
    Enhanced biochar 有权

    公开(公告)号：US11111185B2

    公开(公告)日：2021-09-07

    申请号：US16406986

    申请日：2019-05-08

    申请人： Carbon Technology Holdings, LLC

    发明人： Ranko Bontchev ,  Han Suk Kim ,  Richard W. Wilson ,  Richard Wilson Belcher ,  Cameron Cheyne ,  Leo E. Manzer ,  Mark L. Jarand ,  Haijun Wan ,  Rajashekharam Malyala

    IPC分类号： C05D9/00 ,  C05F11/00 ,  C05F11/02 ,  C05G3/00 ,  C09K17/04 ,  C05G3/80 ,  C05F11/08 ,  C05D9/02 ,  C09K17/02 ,  C10B53/02 ,  C10B57/02

    摘要： Biochar is provided that is treated to have certain chemical and physical properties found to have the highest impact on plant growth and/or soil health. In particular, the following physical and/or chemical properties, among others, of a biochar have been identified as critical properties to control for in the selection of biomass feedstock, pyrolysis conditions, and/or enhancing treatment to increase biochar performance: (i) bulk density (ii) impregnation capacity; (iii) particle size distribution; (iv) solid particle density; (v) surface area; (vi) porosity; (vii) total porosity; (viii) ratio of macroporosity to total porosity (ix) content of residual organic compounds; (x) content of volatile organic compounds; (xii) ash content; (xiii) water holding capacity; (xiv) water retention capabilities; (xv) levels of dioxins and other potentially hazardous byproducts of pyrolysis; and (xvi) pH. Treatment can modify and preferably increase hydrophilicity/decrease hydrophobicity, remove dioxins from the raw biochar, modify electrical conductivity and/or surface charge, modify cation exchange capacity and modify anion exchange capacity, among other things.