Bontchev Ranko Panayatov,Kim Han Suk,Wilson Richard W.,Belcher Richard Wilson,Cheyne Cameron,Manzer Leo E.,Jarand Mark L.,Wan Haijun,Malyala Rajashekharam
申请号：
US201715792486
公开号：
US2018118631(A1)
申请日:
2017.10.24
申请国别(地区):
美国
年份:
2018
代理人:
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 biocha
