Direct decomposition of hydrogen sulfide is an effective way not only to treat the waste gas in coal,petroleum,natural gas and mineral processing industries for solving the environmental pollution problems but also to produce sulfur and a clean energy,hydrogen. In this paper,the research progress of hydrogen and sulfur produced from direct decomposition of hydrogen sulfide including themolysis(directly high–temperature thermolysis,catalytic thermolysis and superadiabatic thermolysis),electrochemical technology,photocatalytic decomposition and plasma technology are reviewed. Fundamental principle and themodynamic basis of methods involved are briefly introduced. Then, a detailed description of research status focused on research methods,technique feature,reaction performance,advantage and disadvantage, and potential breakthrough point,etc. is given. The future development trend is prospected at the end of this review as well. A prospect is put forward that continuously exploring and developting new technologies such as combining membrane technology,catalytic technology and plasma technology would be the future trend in the field of hydrogen production from H2S decomposition.%硫化氢直接分解制取氢气和硫黄,不仅可以使石油、天然气、煤和矿产加工等生产过程中产生的硫化氢得到有效治理、解决环境污染问题,还能在回收硫黄的同时获得清洁能源——氢能.本文综述了热分解(直接热分解、催化热分解、超绝热分解)、电化学分解、光催化分解以及等离子体分解等硫化氢直接分解制取氢气和硫黄技术,对各种方法的基本原理、热力学依据进行了简要介绍,并详细阐述了各种技术的国内外研究现状,从研究方法、技术特点、反应性能、优缺点以及这些技术未来研究的可能突破点等方面展开深入分析.最后对硫化氢直接分解制氢技术的发展方向进行了展望,指出将膜技术、催化技术及等离子体技术相结合,不断发展和探索新技术将是硫化氢分解制氢技术的未来发展趋势.
展开▼
