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SAMPLING SYSTEM EVALUATION FOR HIGH-TEMPERATURE, HIGH-PRESSURE PROCESSES
Citation:
Masters, W., R. Larkin, L. Cooper, AND C. Fong. SAMPLING SYSTEM EVALUATION FOR HIGH-TEMPERATURE, HIGH-PRESSURE PROCESSES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-78/158 (NTIS PB290106), 1978.
Description:
The report describes a sampling system designed for the high temperatures and high pressures found in pressurized fluidized-bed combustors (PFBC). The system uses an extractive sampling approach, withdrawing samples from the process stream for complete analysis of particulate size, mass concentration, shape, and chemical composition. Two series of tests were run at Exxon's pilot-scale PFBC in Linden, New Jersey: the first was run to measure particulate mass and size distribution (particulate sizing was achieved using a commercial cascade impactor operating at about 105 C); the second was run to determine if condensation occurred between the process temperature of 720 C and the impactor temperature. Results show that cascade impactors can be successfully used for sizing in the high-temperature, high-pressure process stream of the PFBC, and that condensation was not a problem in the tests conducted.