Temperature Measurements to Characterize Dispersion Within PSA Beds
PSA experiments using a two-bed, laboratory-scale (100 Standard Liters per Minute [SLPM]) system equipped with in-bed temperature and vapor-phase concentration probes were performed using trichlorofluoromethane (R-11) as the feed contaminant and air as the carrier. In-bed, vapor-phase concentrations at each axial position were measured and correlated to the magnitude of the temperature swings during a cycle. PSA experiments were then conducted using a full-scale (5,660 SLPM) system with difluorochloromethane (R-22) and 13X molecular sieve. Fourteen temperature probes were placed within a bed at different radial and axial positions. Using the temperature-concentration correlation, it was possible to construct a visual representation of the dispersion characteristics of the larger beds.
KeywordsAxial Position Temperature Probe Feed Flow Rate Axial Dispersion Concentration Front
Unable to display preview. Download preview PDF.
- 2.Mahle and D. K. Friday, Recents Progres en Genie des Procedes, No. 17, Vol. 5, Adsorption Processes for Gas Separation, (1991).Google Scholar
- 3.L. C. Buettner, J. J. Mahle, and D. K. Friday, ERDEC Technical Report, ERDEC-TR-131, Aberdeen Proving Ground, MD 21010, December 1993.Google Scholar
- 4.A. B. Brady, D. K. Friday, C. L. Dawson and L. C. Buettner, Proceedings of the 1992 ERDEC Scientific Conference on Chemical Defense Research, ERDEC-SP-007, Aberdeen Proving Ground, MD 21010.Google Scholar
- 5.J. J. Mahle, David E. Tevault and M. D. Le Van, [This proceedings volume], 1995.Google Scholar