蓄能发电燃料电池

氢气是可再生能源的二次能源载体。通常采用水电解方法产生氢气，用于存储电能。在燃料电池中，氢气可以被再次转换成电能。天然气管网为氢气的存储提供了条件。但是，因为天然气和氢气在物理和燃烧性能上有差异，将氢气存储在天然气管网就受到了极大的限制。本申请描述了电解氢气和合成气反应生成甲烷，再将甲烷引入天然气管网的方法。从天然气管网取用引入的甲烷或类似天然气，在转化炉中再次转化为氢气和二氧化碳。必须在合成气中加入2摩尔的电解氢气用于形成1摩尔的甲烷。甲烷再次分解时将获得双倍量的氢气。合成气可以从生物质，例如木材、煤炭或碳化合物中获取。优选的方法是在转化炉中除了氢气形成的二氧化碳以外还使用等摩尔量的新鲜甲烷/天然气。以这种方式形成的合成气既经济又清洁。二氧化碳进入循环，而不会影响环境。二次能源载体氢气将作为类似天然气的甲烷存储和分布在天然气管网中，在取用时摩尔量加倍，并作为氢燃料电池用于再转化。 Hydrogen is a secondary energy carrier for renewable energies. Hydrogen is usually produced by electrolysis of water to store electrical energy. In a fuel cell, the hydrogen can be converted back into electrical energy. The natural gas network is suitable for storing hydrogen. Owing to the great physical and combustive differences between natural gas and hydrogen, the accommodation of the latter in the gas network is very restricted. The invention relates to a method by which hydrogen originating from electrolysis is reacted with synthesis gas to form methane, and the methane is introduced into the gas network. The intr