Biochar in indus­try

The pos­si­ble uses of biochar (pyrolyt­i­cal­ly pro­duced biomass carbon) are extreme­ly varied. Not only agri­cul­ture can benefit from the envi­ron­men­tal­ly friend­ly char­coal. It also has numer­ous pos­i­tive effects when used in indus­tri­al process­es. Mainly in the form of acti­vat­ed carbon (adsor­bent) in water, gas and air purifi­ca­tion, but also as a reduc­ing agent in met­al­lur­gi­cal process­es, biochar has great poten­tial.

Last but not least, biochar is ben­e­fi­cial because it sub­sti­tutes fossil fuels and thus improves the CO2 foot­print. Cement and lime plants, for example, require con­sid­er­able quan­ti­ties of energy sources to provide the nec­es­sary process tem­per­a­tures. For eco­nom­ic reasons, most cement plants already use waste-based fuels on a large scale. However, these fuels are often not avail­able in a form that allows them to be used via the main burner. In order to replace fossil fuels (coal, oil, gas), biomass car­bon­ates are also suit­able, as they have similar prop­er­ties to the brown coal dust con­ven­tion­al­ly used (see Weber 2016: Biokohle. Her­stel­lung, Eigen­schaften und Ver­wen­dung von Bio­massekar­bon­isat­en, p. 279–282 (Biochar. Pro­duc­tion, prop­er­ties and use of biomass car­bon­isates)

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