Device and method for determining a gas concentration in a flowing gas mixture
AssigneeWacker Chemie AG
InventorsMarkus Kerschhacker, Johann Huber, Markus Niemetz, Christoph Maurer
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Abstract
The invention relates to a method for determining a gas concentration in a flowing gas mixture, wherein the flowing gas mixture includes solids having a defined size distribution, wherein by way of an optical spectrometer the concentration of a gas is measured in the flowing gas mixture, which includes a measurement beam of the optical spectrometer being conducted during the measurement through a measurement channel having walls made of a gas-permeable material. The invention also relates to a device for carrying out such a method.
Claims12
A method for determining a gas concentration in a flowing gas mixture, wherein the flowing gas mixture comprises solids having a defined size distribution, said method comprising:
- providing an optical spectrometer adapted to generate a measurement beam;
- providing a measurement channel having walls made of a gas-permeable material;
- providing in the measurement channel a measurement beam from the optical spectrometer;
- and
- measuring with the measurement beam in the measurement channel the gas concentration of the flowing gas mixture penetrating through the walls of the measurement channel,
- wherein the flowing gas mixture comprises HCl, Cl2, O2 and flame hydrolyzed silica particles, and the concentration of oxygen or HCl is determined in the gas mixture.
Dependencies are inferred from the claim text.