【经济日报】自主知识产权！这项技术将毒气“变废为宝”

Core Viewpoint - Chinese scientists have developed a technology for the complete elimination and resource utilization of hydrogen sulfide, transforming a toxic gas into valuable resources such as hydrogen and sulfur [1][2] Group 1: Technology Development - The technology, known as "off-site electrocatalytic full decomposition of hydrogen sulfide for hydrogen and sulfur production," has been recognized as internationally leading by experts [1] - The research team has applied for 26 patents, with 12 already authorized, forming a comprehensive patent portfolio [2] Group 2: Industrial Application - An industrial demonstration project has been initiated in the coal chemical industry, utilizing hydrogen sulfide as a byproduct from a methanol production facility [2] - The first pilot demonstration unit with a capacity of 100,000 cubic meters per year has been established, consisting of three main components: hydrogen sulfide oxidation to produce sulfur, proton reduction to generate hydrogen, and an electrochemical cell [2] Group 3: Performance Metrics - The pilot unit has operated continuously for over 1,000 hours, achieving complete conversion of hydrogen sulfide [2] - The purity of the produced sulfur exceeds 99.95%, and the hydrogen purity is over 99.999% [2] Group 4: Environmental Impact - The global energy system, primarily based on fossil fuels, faces environmental challenges due to hydrogen sulfide emissions, with China processing approximately 8 billion cubic meters annually and over 70 billion cubic meters globally [1]