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历来,被用作城市煤气使用的一氧化碳与氢气的混合气,不但热值低(2000～4000千卡/标米~3),且CO有毒。为与充分利用煤炭资源相呼应,许多国家开展了合成无毒性、热值接近于天然气的(8000—9000千卡/标米~3)所谓代替天然气的研究。近年来,为了进一步提高煤气的热值,往天然气中添加碳二、碳三烃类的工厂也日益增多。我们以直接合成热值大于10,000千卡/标米~3的燃料气为目标,开发了Co-Mn_2O_3-Ru/Al_2O_3系催化剂,它能以一氧化碳和氢气为原料一步转化成含80％甲烷(摩尔比),同时又含15％左右气态
Historically, carbon dioxide and hydrogen used as a mixture of city gas, not only low calorific value (2000 ~ 4000 kcal / m ~ 3), and CO poisoning. In response to making full use of coal resources, many countries have developed so-called substituting natural gas for non-toxic and caloric value close to natural gas (8000-9000 kcal / m 3). In recent years, in order to further increase the calorific value of gas, natural gas added to carbon two, three carbon-based factories are also increasing. We have developed a Co-Mn 2 O 3-Ru / Al 2 O 3 -based catalyst that directly synthesizes a fuel gas with a calorific value of more than 10,000 kcal / m 3 and can be converted in one step from a raw material of carbon monoxide and hydrogen to a gas containing 80% methane Than), while containing about 15% of the gas