Capturing and utilising carbon dioxide (CO2) as a feedstock for the production of plastics is an area of ongoing research and development. While there have been some advancements in this field, it is important to note that as of my knowledge cutoff in September 2021, the technology is still in its early stages and has not yet been widely commercialised.
One potential approach to utilising captured CO2 for plastics production involves a process called carbon capture and utilisation (CCU). This process involves capturing CO2 emissions from industrial sources or directly from the atmosphere and converting it into a raw material for the production of various chemicals, including plastics.
One method being explored is the conversion of CO2 into a building block called ethylene, which is a key component in the production of plastics like polyethylene. Researchers are working on developing catalysts and processes that can efficiently convert CO2 into ethylene or other useful chemical intermediates.
Another approach involves the synthesis of polycarbonates using captured CO2. Polycarbonates are a type of plastic that has various applications, including in the production of eyeglass lenses, compact discs, and electronic devices. Researchers are exploring ways to incorporate CO2 as a raw material in the production of polycarbonates, potentially reducing the reliance on fossil fuel-derived feedstocks.
It’s worth noting that the development of plastics generated from captured CO2 faces several challenges. One major challenge is the development of efficient and economically viable conversion processes. It requires the development of catalysts and technologies that can selectively convert CO2 into useful chemical building blocks with high yields.
Additionally, the availability and scalability of carbon capture technologies play a crucial role in the feasibility of utilising CO2 as a raw material for plastics production. The capture, purification, and storage of CO2 require significant energy and infrastructure investments, which need to be considered when assessing the overall sustainability and viability of such processes.