Enhancing CO2 uptake in Milled Carbons for Scaled-up Production of Value-Added Materials

二氧化碳（CO2）气体的排放是全球关注的问题，这是由于CO2与环境之间的紧密联系。 大气中的浓度和全球变暖。Carbon Upcycling Technologies（CUT，正式名称为JRE Petroleum Services）正在开发一种将二氧化碳与各种类型的碳永久结合的技术 通过采用容易实施的研磨工艺来制备前体材料。增值产品有 在提高水泥机械强度、水净化膜或 潜在地用作燃料电池的氧还原催化剂载体。CUT与Birss集团合作， 卡尔加里大学，以促进这一进程的商业化。在我们最初的NSERC ENGAGE中 在CUT项目中，使用常规（低） 在CO2（5atm）存在下对石墨进行能量研磨，这与使用 更昂贵的高能研磨技术。现在必须确定这些长期稳定性 材料，相对于石墨，改善较低成本起始材料的CO2吸收，并评估放大 潜力具体而言，将获得关于较低成本的CO2吸收是否 替代方案，例如，石油焦，可以增加到石墨的水平。在这项工作中，铣削条件 将重新优化，以扩大规模和添加剂，如粉煤灰，橄榄石，和碳氧化促进 催化剂将用于进一步提高二氧化碳吸收，这些材料的表面积将增加 进一步增加二氧化碳的吸收。这项工作的结果将使CUT更接近商业化， 他们的专有工艺。这项技术的经济、社会、环境和健康效益是 毫无疑问，这是全球性的，但对加拿大在解决二氧化碳排放方面具有特殊意义， 提高能源部门低端产品的价值，如石油焦和粉煤灰。此外，本发明还提供了一种方法， 这里形成的副产品代表了一个不断增长的市场，该市场目前受到低生产率的限制， 高成本，从而在加拿大创造了大量的制造业和工程业就业机会。

The emission of carbon dioxide (CO2) gas is a global concern due to the strong link between CO2 concentrations in the atmosphere and global warming. Carbon Upcycling Technologies (CUT, formally JRE Petroleum Services) is developing a technology that permanently combines CO2 with various types of carbon precursor materials by employing an easily implemented milling process. The value-added product has potential applications in enhancing the mechanical strength of cement, in water-purification membranes, or potentially as an oxygen reduction catalyst support for fuel cells. CUT has teamed up with the Birss Group at the University of Calgary to facilitate commercialization of this process. In our original NSERC ENGAGE project with CUT, modified carbons were produced that achieved >20% mass gain using conventional (low) energy milling of graphite in the presence of CO2 (5 atm), which is comparable to literature methods using more costly, high energy milling techniques. It is now imperative to determine the long term stability of these materials, improve CO2 uptake of lower cost starting materials relative to graphite, and assess scale up potential. Specifically, critical information will be acquired as to whether CO2 uptake by lower cost alternatives, e.g., petroleum coke, can be increased to the levels of graphite. In this work, milling conditions will be re-optimized for scale up and additives such as fly ash, olivine, and carbon oxidation promotion catalysts will be used to further enhance CO2 uptake, and the surface area of these materials will be increased further to increase CO2 uptake. The results of this work will allow CUT to get closer to commercialization of their proprietary process. The economic, social, environmental, and health benefits of this technology are unquestionably global, but have specific significance for Canada in terms of addressing CO2 emissions and increasing the value of low end products of the energy sector, such as petroleum coke and fly ash. In addition, the by-products formed here represent a growing market that is currently limited by low production rates and high cost, thus creating numerous manufacturing and engineering jobs in Canada.