关键词: 天然气, 催化燃烧, 辐射, 炉窑特性, 唐三彩

Abstract: Industrial furnaces emit a large number of pollutants into the atmosphere every year. This research applied low polluting natural gas-fired catalytic furnace to reduce air pollution in the process of heating tri-color glazed pottery of Tang Dynasty. The temperature and distribution of pollutants of exhaust gas were investigated inside the furnace without pottery. The natural gas-fired catalytic furnace met temperature requirements of making tri-color glazed pottery and had lower pollution. The temperature inside furnace was controlled by adjusting the extent of door opening and changing input power. Meanwhile,the concentration of each pollutant in the exhaust gas was measured during the heating process. The optimum heating process was obtained by theoretic analysis and numerous experiments. The results showed that the glaze bonded closely in the natural gas-fired catalytic furnace,with well immersed colors smooth feel,and uniform opening pieces. In addition,the heating process in the natural gas-fired catalytic furnace had lower pollutant emissions,making this method a substitute to the traditional furnaces with high pollutions.

Key words: natural gas, catalytic combustion, radiation, characteristics of Furnace, tri-colored glazed pottery of Tang Dynasty