Oxygen measurement in centrifuge inertization

The METTLER TOLEDO amperometric oxygen measurement system allows reliable measurements in processes where controlled inert gas atmospheres have to be applied. It provides a competitive replacement opportunity for costly paramagnetic systems.

Background
Centrifuges play a key role in separating solids from organic solvents. As other critical process equipment, they must be operated safely and efficiently. The risk of explosion in a centrifuge is much greater than in most other process equipment because the three ingredients necessary for combustion (organic solvent, oxygen and energy) occur within the centrifuge. If any one of the three elements is missing, a fire cannot appear. Energy is always generated by the turning parts in a centrifuge, and solvents are essential for the production process. Oxygen cannot be avoided, but inert gas atmospheres serve to reduce a centrifuge's oxygen concentration to below the Limiting Oxygen Concentration (LOC).

Additionally, the operator tries to establish the optimum volume of inert gas. The oxygen system is part of the control loop and contributes to safe operation and reduced operating expenses….

Please open the below pdf-file to read the entire «Application Note»!