Reducing carbon and pollution depends not only on planting trees, but also on technology. The technology of capturing and separating carbon dioxide from industrial or other carbon emission sources and transporting it to suitable places for use or storage is called CCUS (Carbon Capture, Utilization and Storage). Because it can capture carbon dioxide on a large scale and create economic value, it is an important technical means to effectively control carbon emissions and respond to global climate change, so it is vividly called "carbon catcher". Today, CCUS technology is increasingly attracting the attention of all countries in the world. Developed countries in Europe and the United States carried out the layout earlier. In China, CCUS technology has also entered the industrialization demonstration stage. In April 2022, the first million-ton CCUS project in China - Qilu Petrochemical - Shengli Oilfield CCUS project started production and commissioning. "CCUS will be an indispensable part of China's technology portfolio to achieve carbon neutrality in the future." Gao Xiang, an academician of the CAE Member and president of the Institute of Carbon Neutralization of Zhejiang University, said recently in an interview with Science and Technology Daily that we should seize the window to scientifically promote the "carbon capture" technology. One of the indispensable technologies to achieve carbon neutrality Reporter: Can you first popularize science for readers, what is CCUS technology? How about its "carbon capture" capability? Gao Xiang: This technology refers to the separation of carbon dioxide from industrial processes, energy utilization processes or the atmosphere, and its direct use or injection into the formation to achieve permanent carbon dioxide emission reduction. It is one of the key technologies to deal with global climate change. In 2020, the total amount of carbon dioxide captured by CCUS technology globally is about 40 million tons, accounting for about 0.1% of the total global carbon emissions. According to the prediction of the International Energy Agency (IEA), by 2050, the total amount of carbon dioxide captured by CCUS technology will reach 7.6 billion tons, accounting for 22.4% of the total global carbon emissions in 2020. It can be seen that the future development prospects of CCUS industry are considerable. Reporter: You have proposed that CCUS is a technology with large-scale emission reduction potential, and is one of the indispensable technologies to achieve carbon neutrality and respond to global climate change. Why do you say that? Gao Xiang: In the process of achieving carbon neutrality, it will take a long time for clean energy to gradually replace traditional energy. At present, China's energy structure is dominated by fossil energy. Coal is still the main source of energy supply and the main source of carbon emissions. CCUS technology is the only emission reduction technology that can realize large-scale low-carbon utilization of fossil energy at present, so it is indispensable. To be precise, CCUS is a chain technology system including capture, transportation, utilization and storage. Among the various technological paths to achieve carbon neutrality, CCUS technology has different configuration schemes and will play different roles in different scenarios. At present, China's power industry's carbon emissions account for about 41% of the energy industry's carbon emissions, and thermal power generation is the most important source of carbon emissions. In the future, renewable energy will be transformed from supplementary energy to main energy, while fossil energy will be transformed from main energy to guaranteed energy. In the process of achieving this transformation
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