永續資源循環於碳中和之應用

近年來，先進國家或企業都積極透過循環經濟創造下一波經濟發展的優勢，台灣在缺乏資源的壓力下，如何透過循環經濟的轉型，創造下一波經濟發展的契機，將是非常關鍵的挑戰。全球對於能源的需求與日俱增，造成CO2過度排放，因此，發展兼具高效能、經濟效益及穩定性的CO2捕獲及轉化技術是必要的。奈米碳材具高比表面積、機械穩定性、特殊化學、電性及催化等特性，應用於CO2捕獲與轉化具相當高潛力，但大量生產奈米碳材並降低其生產成本具挑戰性。本文主要報導綠色節能技術資源化生質廢棄物製備功能性生物炭，並進一步應用於電廠中CO2捕獲/礦化及轉化為高價值聚碳酸酯所需之材料。所開發的技術除了將廢棄物循環高值化，且可提昇在減碳、環保及潔淨能源相關議題之應用效能，也配合國家政策邁向2050淨零碳排目標。

Recently, many well-developed countries are trying to set up the circular economy system because of the economy-incentive issue. It is urgent for Taiwan (lack of resources) to create the economic growth by building the society of circular economy. In recent years, due to high energy demands, many researchers focus on developments of CO2 capture and utilization in order to reduce CO2 emissions. Among them, the CO2 capture and utilization, particularly those produced from coal-burning power plants, are a demanding task. Thus, R&D for high-performance, cost-effective and stable capture and conversion technologies of CO2 remains one of the most crucial tasks in carbon sequestration. Among the promising materials, nanocarbons which possess high specific surface area, high structural, hydrothermal and mechanical stabilities and unique chemical and catalytic properties, are the most promising candidates as CO2 sorbents and catalytic supports for CO2 conversion. Thus, the report is focused on the development of novel and green process for valorization of biomass to functional biochars which can be applied in CO2 adsorption/mineralization and conversion to cyclic/polycarbonates. The technologies reported herein should be proven to have significant scientific, environmental (CO2 reduction), clean energy as well as economic impacts. Also, the goal of these technologies could fulfill the policies towards the 2050 net-zero carbon emission target.