Monitoring the Formation of Benzene in Cement Kiln Systems
During the cracking process of raw materials used for cement production (e.g. limestone, marl, clay) in a cement kiln system organic compounds are expelled and constitute the major source of emission. Addition of further alternative raw material can lead to higher concentrations of unwanted gaseous substances such as benzene and hazardous compounds. A reliable analytical method is needed to monitor emission in relation to the composition of the kiln feed material.
A laboratory test can be devised that allows varying of the raw material and cracking conditions. Monitoring the resulting gas composition can be achieved by expulsion via nitrogen and subsequent measurements using a V&F Ion Molecule Reaction Mass Spectrometer (IMR-MS). A range of organic volatiles including benzene and molecules with similar risk potential for the environment and human health can be monitored simultaneously. Owing to their high sensitivity down to part-per-billion concentrations even small changes in the gas composition are registered immediately.
V&F mass spectrometers are very compact and versatile systems that can be used in laboratory environments, mobile monitoring stations or at fixed point close to the point of emission such as for example a stack. Their real time measurement capabilities facilitate timely intervention and alteration of the cement production process in order to minimize unwanted emissions.
- Mobile monitoring
- High sensitivity
- Real time results