【中国新闻网】硫化氢如何变废为宝？中国首创技术“一箭双雕”实现工业应用

Core Viewpoint - The "Off-site Electrocatalytic Complete Decomposition of Hydrogen Sulfide to Hydrogen and Sulfur Technology" developed by the team led by Academician Li Can has successfully transitioned from laboratory to industrial application, addressing environmental challenges posed by hydrogen sulfide emissions while providing a dual resource recovery of hydrogen and sulfur [4][5][7]. Group 1: Technology Overview - The technology offers a new pathway for the complete elimination and resource utilization of hydrogen sulfide, significantly reducing pollution and protecting the ecological environment while achieving dual resource recovery [4][7]. - The industrial demonstration project utilizes hydrogen sulfide as a raw material from a methanol plant, employing a modular design that includes three main units for sulfur production, proton reduction for hydrogen, and an electrochemical cell [5][8]. - The demonstration unit has operated continuously for over 1,000 hours, achieving complete conversion of hydrogen sulfide with sulfur purity greater than 99.95% and hydrogen purity exceeding 99.999% [5][8]. Group 2: Environmental and Economic Impact - The technology is expected to provide a key green transformation solution for industries such as natural gas, petrochemicals, and coal chemical sectors, supporting the development of low-carbon industrial practices [7][9]. - The team has applied for 26 patents related to this technology, with 12 already granted, indicating a strong intellectual property foundation [8]. - If implemented widely, the technology could recover approximately 730,000 tons of clean low-carbon hydrogen from the annual treatment of 8 billion cubic meters of hydrogen sulfide in China, contributing significantly to the country's green hydrogen production goals [10].