Oxygen Analyzers

• Yokogawa's CENTUM CS 3000 DCS Monitors and Controls Operations at Poultry Litter-to-energy Plant
• The boiler and turbine startup procedures reduces operator workload and helps to ensure a smooth and safe startup

Ingress of oxygen into a finished beverage container can affect the taste and shelf life of the product. The greater the concentration of oxygen in the container's headspace or dissolved in the solution itself, the greater the flavor degradation. The presence of oxygen causes negative quality characteristics in beverages such as beer and wine.

Humidity is a good indicator of drying progress as it expresses the amount of vapor in the carrier gas stream. Humidity affects the dryness of the solids with which it comes into contact. Therefore, humidity control is crucial for final product quality in drying processes such as in food manufacturing, tobacco production, and malt drying. Challenges vary from too much drying, which can cause cracking, to too little drying, which results in poor taste and texture quality. 

Package boilers require less fuel and electric power to operate and are widely used in the pharmaceutical, food, ceramic, and other industries. A package boiler operates more efficiently if the oxygen concentration in the flue gas is reduced. 

A furnace for heating slabs needs to be operated under low oxygen conditions at high temperatures of 1000°C and above to prevent oxidation of the steel. The measurement of oxygen concentrations in the furnace is essential in this process. (AN 10M01F01-03E)

The ammonia (NH₃) gas is injected to remove the NOx and thus reduce the NOx concentration in the stack flue gas. With conventional NH₃ analyzers that perform measurements indirectly, NH₃ concentrations are obtained through a sampling system. Therefore, there are problems with the maintenance and running costs of the sampling system, and time delays in measurement. The TDLS8000 Laser Analyzer is the solution to all these problems.

In a hot blast stove, the by-product gas produced in a coke oven is burned to preheat the air blast for the blast furnace. To improve the combustion efficiency and conserve energy in a hot blast stove, it is essential to be able to control combustion by measuring and adjusting the oxygen concentration in the exhaust gases.

A package boiler operates more efficiently if the oxygen concentration in the flue gas is reduced. Optimizing air intake for boiler operation requires continuous measurement of the oxygen concentration in the flue gas.

Combustion furnaces such as heating furnaces and boilers in plants include various sizes and types, and serve as energy sources, that is, they are cores in all production activities. Because a large amount of fuel such as gas or fuel oil is consumed in plants, their combustion efficiency directly affects the performance and running cost of the plants. 

Yokogawa’s new TDLS8000 houses all of the industry’s leading features in one robust device. The platform design is for in situ measurements which negate the need for sample extraction and conditioning. The non-contacting sensor allows for a variety of process types including corrosive, abrasive and condensing. The first generation platform has been proven in many others for the measurements of O2, CO, CH4, NH3, H2O and many more NIR absorbing gases. This second generation platform has improved reliability and ease of installation and maintenance while still meeting or exceeding designed application demands.

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