Formation and Characterization of Soot Deposits from Non-Optimum Combustion of No. 6 Fuel Oil with Chlorinated Organic Compounds in an Industrial Boiler

摘要

During a full-scale hazardous waste combustion study performed for EPA, sampling and analysis was conducted on both stack gases and solid 'soot' collected from a boiler's interior surfaces. Two organochlorine compounds, monochlorbenzene (MCB) and trichloroethylene (TCE), were cofired with fuel oil, followed by a natural gas fuel firing phase using only natural gas. The sorption and later desorption of uncombusted organic compounds on soot, (termed hysteresis) was the focus of the study. Soot samples and stack gases were analyzed for volatile and semivolatile organic compounds. A technique involving thermal desorption-GC/MS (gas chromatography/mass spectrometry) was developed and used for the combustion study soot analysis.