工业领域氧化亚氮排放控制行动方案印发

Core Viewpoint - The Ministry of Ecology and Environment, in collaboration with the National Development and Reform Commission and the Ministry of Industry and Information Technology, has issued the "Nitrous Oxide Emission Control Action Plan" for the industrial sector, setting the tone and direction for future nitrous oxide emission control efforts in China, which will positively impact the green and low-carbon transformation of the industry [1][2]. Group 1: Emission Control and Impact - Nitrous oxide is the third-largest greenhouse gas globally, with a global warming potential approximately 300 times that of carbon dioxide, and its atmospheric lifespan exceeds 100 years [1]. - In 2021, China's nitrous oxide emissions accounted for about 4.3% of the total greenhouse gas emissions, with industrial nitrous oxide emissions estimated at 154 million tons of CO2 equivalent [1]. - The main sources of nitrous oxide emissions in the industrial sector are the production processes of adipic acid, nitric acid, and caprolactam, with the adipic acid industry being the largest contributor [2]. Group 2: Policy and Technological Development - The action plan aims to enhance emission reduction technology innovation and management capabilities, improve the control and recycling levels of nitrous oxide emissions in the industrial sector, and promote continuous reductions in nitrous oxide emissions per unit product in the adipic acid, nitric acid, and caprolactam industries [2]. - Effective control of nitrous oxide emissions in the industrial sector can provide climate benefits by mitigating global warming, environmental benefits by controlling pollutants, and economic benefits through resource utilization, supporting the integrated approach of "carbon reduction, pollution reduction, and green growth" [2]. - Since 2021, China has gradually included nitrous oxide emission data from nitric acid production in the national carbon market, and domestic companies have developed proprietary emission reduction technologies with competitive efficiency and cost advantages [3].