Mass spectrometer-based continuous emissions monitoring system for hazardous waste stack gas measurements

Abstract From the Canadian patent

A continuous emissions monitoring system for exhaust gas emissions containing HCl comprising a sampling subsystem, with a sample probe in the effluent collecting effluent that is transmitted through heated conduits to filtering means and pump means to a mass spectrometer. The sampling subsystem is maintained at a temperature no less than about 190 °C and the flow rate through the system is greater than about 10 liters per minute. The process for continuous monitoring of exhaust emissions containing HCl extracts an exhaust gas sample and maintains the temperature and physical state of the exhaust gas throughout transport of the sample from the exhaust effluent to a mass spectrometer.