| 摘要 |
<p>Since steam-reforming reaction is attended by formation of carbon monoxide as a by-product, a converter for causing water and carbon monoxide to shift-react is often used additionally. Generally, in stabilized operation, almost no increase in carbon monoxide concentration is observed. However, conditions for using a catalyst in the converter will vary owing to some external cause or other, presenting a problem that carbon monoxide concentration increases. In a device for feeding hydrogen gas from a gas feeder (1) to a converter, which comprises a reformer (1) including carbon monoxide and steam, and a converter (3) provided with a conversion catalyst (3a), the hydrogen gas outlet port of the converter is provided with a carbon monoxide concentration detecting means (6), so that when the detected value of carbon monoxide concentration in the carbon monoxide concentration detecting means (6) becomes larger than a preset value, the amount of steam in the gas feeder (1) is increased.</p> |
