Cement is made by heating calcareous and argillaceous materials to a temperature between 1100 and 1500 °C. As this process uses massive amounts of energy, various energy saving measures are taken, including the measurement of oxygen concentrations in exhaust gases to control combustion. To protect the environment, electrostatic precipitators (ESPs) reduce dust emissions and analyzers measure concentrations of nitrogen oxides (NOx), sulfur dioxide (SO2), and other pollutants. Analyzers installed for this purpose are expected to provide stable, long-term performance even under harsh process conditions. Yokogawa process analyzers can be used to measure O2 and CO at the upper end of a kiln or at the outlet of a flash furnace, where high-temperature, dust-laden gases flow. They can also be installed at the outlet of an ESP to monitor dust concentrations and optimize efficiency, and in a smoke stack to measure NOx, SO2, and O2.

-	Measures gas concentrations and dust concentrations in cement plants
-	Reduces operating costs

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Metal Mining, Cement, Glass Index