Air

Technical Reviews & Data Analyses

Efforts in this focus area are geared towards developing and / or improving the understanding of fundamental principles and process operating parameters that impact emissions. Additionally, this focus area also leverages NCASI expertise to generally assess the appropriateness of emission factors used in various permitting activities. To this end, NCASI conducts detailed technical reviews of data gathered from targeted emission testing studies and performance tests.

Technical Reviews & Data Analyses

Topics

Pulping & Bleaching

NCASI is globally recognized for expertise in emissions of Air Toxics, Criteria Pollutants and Hazardous Air Pollutant emissions from pulping and bleaching sources.  Efforts in this area involve leveraging NCASI’s understanding of the process to develop semi-empirical relationships between emissions and process parameters that impact emissions. These analyses have frequently…

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Power & Combustion

NCASI studies and technical analyses of emissions data from wood-fired combination boilers have resulted in an improved understanding of the factors driving sulfur capture in these units, acid gas (sulfuric, hydrochloric) formation and emissions, estimating the effectiveness of control strategies, and troubleshooting operational issues.  NCASI technical analyses in this area…

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Chemical Recovery

NCASI uses detailed process knowledge and expertise in emissions measurements to advance the science of air emissions from chemical recovery sources and their related control devices.  Examples include the impact of operating parameters on NOx emissions from chemical recovery furnaces, impact of scrubber characteristics on TRS emissions from smelt dissolving…

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Papermaking

NCASI’s technical expertise has proven critical in measuring and estimating emissions from this challenging source category.  A combination of extensive test data, pilot studies and analyses have demonstrated that emissions from papermaking area sources are expected to be quite low.

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Wood Products

Recent NCASI technical analyses in the wood products segment are focused on the upcoming MACT residual risk and technology review (RTR), frequently termed as PCWP MACT II and RTR. NCASI technical analyses are evaluating the impacts of source co-location and building air on emissions and the underlying feasibility of establishing…

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