低浓度瓦斯燃料电池发电技术研究

Study on the low concentration gas fuel cell power generation technology

为了解决我国矿井风排瓦斯因浓度低、不易利用而直接排放,污染空气这一难题,提出了低浓度、超低浓度瓦斯燃料电池中发生氧化还原反应产生电能的瓦斯利用新技术。该技术是将低浓度瓦斯与氧气分别从燃料电池的不同电极充入池内,发生得失电子的化学反应,将化学能转化为电能,可以将这部分电能加以储存利用。分析表明:瓦斯在燃料电池中氧化产生的电能比其经过其他形式产生的电能高50%。此外,瓦斯燃料电池发电利用技术还具有不受瓦斯浓度、湿度、杂质等因素制约的优点,有效地克服了低浓度瓦斯在内燃机中燃爆发电等技术的弊端。

In order to solve the problem of air pollution caused by directly discharged exhausting mine gas with low concentration,a new technology that converted gas into electrical energy by oxidation-reduction reaction in gas fuel cells was proposed.The gas and oxygen were injected into the electrolytic cell via different electrodes.Chemical energy was thus converted into electrical energy through chemical reactions.Hereafter,the electric energy could be stored and utilized.Results show that the electrical energy produced by oxidation of gas in fuel cell is 50% higher than that from other forms.In addition,such technology also has the advantages of independent of gas concentration,humidity,impurities and other factors. It is also effectively overcoming some drawbacks of explosion power generation technology in internal-combustion engine for low concentration gas.