| 摘要 |
<p>Method comprising the following steps: a) mixing the fuel gas with another gas which contains et least 3 % oxygen, in such an amount that the amount of oxygen in the gas mixture thus obtained is at least 60 % of the stoichiometric amount required for complete combustion of the fuel gas, b) passing the gas mixture thus obtained through a burner body (1) having several outlet orifices (2), c) maintaining a flame above the burner body (1), which flame comprises several flame jets (3), the fuel gas being a highly reactive fuel gas which is passed through the burner body (1) in such a way that the spacing between the flame jets (3) is between 4.5 and 20 mm and the combustion is carried out at a ratio of the outflow velocity of the gas mixture and the flame speed of between 5.0 and 45.0. The burner body is preferably a ceramic burner plate (1), whereof the total area of the outlet orifices (2) forms from 0.5 to 30 %, preferably from 1 to 4 % of the total area of the burner plate (1) which is provided with round outlet orifices (2) having a diameter of from 0.5 to 1.5 mm. The highly reactive fuel gas is preferably hydrogen or a hydrogen/methane mixture containing more than 90 % hydrogen.</p> |
