他们将剧毒化合物“变废为宝”

Core Viewpoint - The "Off-site Electrocatalytic Full Decomposition of Hydrogen Sulfide to Hydrogen and Sulfur Technology" has been recognized as an internationally leading industrial technology, capable of converting toxic hydrogen sulfide into valuable resources, thus addressing environmental pollution and providing a green transition solution for industries such as natural gas and petrochemicals [1][6]. Group 1: Technology Development - The technology was developed by a team led by Academician Li Can from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and has been in development since 2003 [1][3]. - The technology features a unique "spatial decoupling" design that separates the chemical reactions into specialized reactors, allowing for the efficient production of high-purity sulfur and clean hydrogen [3][4]. - The team has filed 26 patents related to this technology, with 12 already granted, forming a comprehensive patent portfolio [3]. Group 2: Industrial Application - An industrial demonstration project has been established in the coal chemical industry, integrating four key technological innovations, including high-efficiency electrochemical cells and a high-conversion sulfur oxidation system [4]. - The first pilot plant with a capacity of 100,000 cubic meters per year has been built, utilizing a modular design to produce sulfur and hydrogen [4][5]. - The pilot plant has demonstrated the ability to operate continuously for over 1,000 hours, achieving complete conversion of hydrogen sulfide with sulfur purity exceeding 99.95% and hydrogen purity exceeding 99.999% [5]. Group 3: Environmental and Economic Impact - The technology provides a new pathway for the complete elimination and resource utilization of hydrogen sulfide, significantly benefiting both environmental protection and economic efficiency [6][7]. - By processing approximately 8 billion cubic meters of hydrogen sulfide annually in China, the technology could recover about 730,000 tons of clean low-carbon hydrogen, which is equivalent to 40% of the planned green hydrogen production capacity by 2030 [7]. - This technology supports the green transformation of industrial systems and contributes to achieving carbon neutrality goals in related industries [7].