Accession Number : ADA331620

Title :   Temperature Measurements to Characterize Dispersion Within Pressure Swing Adsorption (PSA) Beds

Descriptive Note : Final rept. Sep 94-Sep 95

Corporate Author : GUILD ASSOCIATES INC BALTIMORE MD

Personal Author(s) : Buettner, L. C. ; Brown, R. S. ; Friday, D. K.

PDF Url : ADA331620

Report Date : SEP 1997

Pagination or Media Count : 19

Abstract : 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. The 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.

Descriptors :   *ADSORPTION, *ACTIVATED CARBON, PROBES, TEMPERATURE, VAPOR PHASES, FLOW RATE, DISPERSIONS, CHLOROMETHANES.

Subject Categories : Industrial Chemistry and Chemical Processing
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE