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氢气是燃料电池的首选燃料，而用天然气制氢则是化石燃料制氢工艺中最为经济与合理的，因而以甲烷作原料制备氢气的工艺在当前发挥着重要的作用。为此，对国内外甲烷制氢技术的研究现状、进展及发展方向等进行了论述：甲烷水蒸气重整工艺生产技术虽然较为成熟，但能耗高、生产成本高，设备投资大；甲烷催化部分氧化法过程能耗低，可采用大空速操作，无需外界供热而可避免使用耐高温的合金钢管反应器，可采用极其廉价的耐火材料堆砌反应器，使装置的固定投资明显降低，但尚未见到该技术工业化的相关报道；甲烷自热重整工艺是一种新型制氢方法，其基本原理是在反应器中耦合了放热的甲烷部分氧化反应和强吸热的甲烷水蒸气重整反应，反应体系本身可实现自供热；甲烷绝热转化制氢的原理是将甲烷经高温催化后分解为氢和碳，这是连接化石燃料和可再生能源之间的过渡工艺过程。

PROGRESS ON TECHNICAL STUDY FOR PRODUCTION OF HYDROGEN FROM METHANE 1)

Hydrogen is the best fuel for fuel cells. And it is the most economic and reasonable to produce hydrogen from natural gas in the techniques to produce hydrogen from fossil fuels. At present, the technique taking methane as source material to produce hydrogen plays important role. The article introduces the current status, progress and developing trend of the technique to produce hydrogen from methane at home and abroad. The technique of steam reforming of methane is relative mature, but it needs high energy consumption, high production cost and high equipment investment. Partial catalysis oxidation of methane is a process with lower energy consumption, which can be operated with high air velocity and doesn’t need outsider heat. The process uses normal reactor without using alloy steel pipe reactor, so that reduces the cost of equipment investment. But there is no report about industrializing use of the technique. The auto thermal reforming technique of methane is a new method to produce hydrogen. Its basic principle is to couple the exothermal partial oxidation reaction of methane and endothermic steam reforming reaction of methane in the reactor. The reaction system can provide heat itself. The principle of methane adiabatic transformation to produce hydrogen is to make the catalysis decomposition of methane into hydrogen and carbon with high temperature, which is the transition technology to connect fossil fuels with renewable energy resources.