| 摘要 |
PCT No. PCT/DK80/00072 Sec. 371 Date Jul. 24, 1981 Sec. 102(e) Date Jul. 24, 1981 PCT Filed Nov. 19, 1980 PCT Pub. No. WO81/01615 PCT Pub. Date Jun. 11, 1981.A small stream of an absorbent material is exposed to a gas flow of which the concentration of a given component is to be determined. Heat is released during the resulting absorption process, and the stream of absorbent material will exhibit an overtemperature in relation to the surrounding gas flow. An indication of the concentration of the absorbed component is provided by the overtemperature. The temperature of the stream of absorbent material is adjusted before it comes into contact with the gas flow in such a way that the quantity of heat which is released during the absorption process will be transferred in its entirety to the surrounding gas flow by convection. This method makes possible the precise and continuous determination of the concentration, which is insensitive to variations in temperature and pressure and to changes in the speed of the gas flow past the point of measurement and in the magnitude of the stream of absorbent material. Insensitivity to the presence of dust in the gas mixture is also provided. The method may be used for the determination of the concentration of gaseous, absorbable components such as H2O, SO2, HCl, H2S, NH3, CO and CO2. |
