探索低浓度瓦斯变废为宝（迈向“十五五”的创新图景）

Core Viewpoint - The article emphasizes the importance of developing technologies for the efficient utilization of low-concentration coal mine gas (methane) in Shanxi, China, highlighting recent advancements and government support for this initiative [2][4]. Group 1: Technological Advancements - The research team has developed a "artificial zeolite molecular sieve technology" that addresses the challenge of utilizing methane concentrations between 2% and 8%, which were previously deemed unusable [2][3]. - The new technology allows for the efficient separation of methane from nitrogen, enabling the utilization of low-concentration coal mine gas and laying the foundation for its tiered quality enhancement [2][3]. - The team conducted over 20,000 experiments to create a high-performance adsorbent material for methane concentration, which has been recognized with a first-class award from the China Petroleum and Chemical Industry Federation in 2021 [3]. Group 2: Government Support and Standards - In late 2022, the Ministry of Ecology and Environment and the State Administration for Market Regulation revised the methane emission standards for coal mines, tightening the allowable concentration from 30% to 8%, which opens up new opportunities for the application of the developed technology [3][4]. - The National Energy Administration issued guidelines in October 2023 to promote the integration of coal and new energy, emphasizing the importance of comprehensive utilization of coal mine gas [4]. Group 3: Industry Context and Future Outlook - Shanxi has a rich resource of coal bed methane, with geological resources exceeding 30 trillion cubic meters at depths shallower than 2000 meters, making it a significant contributor to China's natural gas supply [5]. - The province has established two national coal bed methane industrial bases and aims to increase production, with a target of extracting 134.3 billion cubic meters of coal bed gas by 2024 [5]. - The research team plans to continue optimizing low-concentration methane purification technology and accelerate its promotion to support national energy security and the green transformation of coal mining [4].