(654e) Continuous Compositional Analysis of Emission Streams Using Online Process Analyzers.

As Dow continues to work towards a sustainable future there is an increased focus on activities and innovations that reduce its operational footprint. A key component to the sustainable and safe operation of any industrial manufacturing operation are Continuous Emission Monitoring Systems (CEMS). These tools allow for constant monitoring of effluent gas streams, enabling control and prediction of emission gases in established operations. CEMS are also pivotal for mitigation studies in pilot plant operations. In this project methods have been designed and implemented for the analysis of various components in combustion gas streams.

The composition of a combustion gas stream is dependent on the process chemistry and can contain a mixture of hydrocarbons, water, and various oxides such as carbon monoxide, nitrogen oxides and sulfur oxides. Characterization of these streams can require the implementation of various analyzers to detect the various analytes while also achieving the required detection and quantitation limits. This presentation will overview the method development of an online Gas Chromatograph, Mid-Infrared Spectrometer, Tunable Diode Laser and Quantum Cascade Laser. It will outline how factors such as potential analysis time and operational safety impact the decisions that govern the choice of instrument for a specific measurement.