Supercritical CO2 extraction of biomass residues as pretreatment for biocarbon production

CharTech 公司有兴趣使用农业和森林生物质残留物作为原料生产生物碳，以替代炼钢中的煤炭作为温室气体碳中和源。然而，生物碳需要具有**高的碳含量，并且仅包含少量不需要的次要成分，例如碱金属和**磷，以满足钢铁工业的要求。在该项目中，CharTech 与**大学小组合作，研究应用环保型超临界二氧化碳萃取**技术作为预处理，从**农业和森林生物质残留物产生的生物碳中去除不需要的微量成分的效果。超临界CO2是一种清洁环保的萃取**工艺，利用超临界CO2独特的类液体溶解度和类气体渗透特性。应用**环保的超临界二氧化碳萃取作为生物质残留物的预处理具有高度创新性。**这种新型处理技术的成功开发将使行业合作伙伴能够通过向钢铁制造商供应生物碳来利用**巨大的潜在清洁技术市场。该项目还将在前沿提取、热力学建模和先进表征技术方面对**高级人才进行培训，这将**帮助他们成为新兴生物经济的关键贡献者。

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.