Supercritical CO2 extraction of biomass residues as pretreatment for biocarbon production

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CharTech company is interested in producing biocarbon using agriculture and forest biomass residues as**feedstock to replace coal in steel making as a GHG carbon neutral source. However, biocarbon needs to have a**high carbon content and contain only low amounts of unwanted minor components, such as alkali metals and**phosphorous, in order to meet the requirements by the steel industry. In this project, CharTech is partnering with**the university group to investigate the efficacy of applying environmental friendly supercritical CO2 extraction**technology as a pretreatment for removal of the unwanted minor components from biocarbon produced from**agriculture and forest biomass residues. Supercritical CO2 is a clean and environmental-friendly extraction**process that utilizes supercritical CO2s unique liquid-like solubility and gas-like permeability properties. Applying**environmentally friendly supercritical CO2 extraction as a pretreatment for biomass residues is highly innovative.**Successful development of this novel treatment technology will allow the industry partner to take advantage of a**very large potential clean technology market by supplying biocarbon to steel makers. The project will also train**HQPs in leading edge extraction, thermodynamic modelling, and advanced characterization technologies that will**help them become key contributors in the emerging bioeconomy.