The nature of steel manufacturing processes places severe limitations on the monitoring methods that can be used. Aggressive environments combined with high levels of particulates and gases make the choice very limited.
The Opsis monitoring solution in aluminium smelters is based on either DOAS or laser diode technique. The on-line, open-path systems are used for monitoring HF and sulphur dioxide in potrooms, in fence-line applications and in continuous emissions monitoring. Opsis has long experience of monitoring in aluminium smelters.
Steel mills include a multitude of activities that generate gaseous emissions. Besides continuous emissions stack monitoring, the applications in a steel mill also include process mesaurements that provides important data to the operators in order to optimize the steel making process.
A large pharmaceutical plant runs a Thermal Oxidiser on plant to incinerate their solvent-containing gas streams before emission. When the oxidiser is offline, then the plant must monitor the release of solvent to the atmosphere. A ProtIR 204C fixed monitoring system was installed that continually measures 24 plant solvents, including Acetone, Cyclohexane, DCM, DMF, IPA, MIBK, Toluene and THF. Given the high levels that are possible, the system has an active dilution system, reducing the concentration of the...
STEEL INDUSTRY: Conducted particulate testing and continuous emission monitoring of a rod mill exhaust stack. In addition, testing was performed to determine emissions associated with a slow cooling pen associated with ball mill production.