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Recently, the Ministry of Ecology and Environment released the **List of Low-Carbon Technologies to Be Promoted Prioritarily (Fourth Batch)**, which includes 35 low-carbon technologies across 6 categories, 4 of whom are applicable to the petroleum and chemical industry. There are 21 technologies for energy conservation and improved energy efficiency; those applied in the petrochemical industry include high-efficiency heat exchange technology using porous surfaces on high-throughput tubes, multi-energy complementary DC microgrids, and energy-saving group control systems for pumping units. The high-efficiency heat exchange technology using porous surfaces in high-throughput tubes is currently utilized in 33.6% of ethylene plants and 7.5% of ethylene glycol plants; it is expected that these figures will rise to 60% and 30% respectively over the next 5 years. A total investment of 400 million yuan will be required, with an annual carbon reduction capacity of 2.1 million tons. The technology related to multi-functional complementary DC microgrids and energy-saving group control systems for oil pumps is currently utilized in 5% of cases; it is expected that this proportion will rise to 25% over the next 5 years. The total investment required will be 2.1 billion yuan, with an annual carbon reduction capacity of 320,000 tons. There are 2 technologies related to carbon capture, utilization, and storage. Those applied in the petrochemical industry include the integrated technology for efficient CO2 flooding of continental oil reservoirs and large-scale storage, as well as a new type of efficient and low-energy-consuming CO2 capture technology. The integrated technology for efficient CO2 utilization in continental oil reservoirs and large-scale carbon sequestration is currently used in 0.5% of cases; it is expected that this proportion will rise to 1% over the next 5 years. The total investment required will be 6 billion yuan, with an annual capacity to reduce carbon emissions by 2 million tons. The adoption rate of new, efficient, and low-energy-consuming carbon dioxide capture technologies is currently 3%; it is expected to rise to 15% over the next 5 years. The total investment required will be 1.2 billion yuan, with an annual capacity to reduce carbon emissions by 1.8 million tons.