Record Display for the EPA National Library Catalog


Main Title Solids transport between adjacent CAFB fluidized beds /
Author Bachovchin, D. M. ; Mulik, P. R. ; Newby, R. A. ; Keairns, D. L. ;
Other Authors
Author Title of a Work
Bachovchin, D. M.
CORP Author Westinghouse Research and Development Center, Pittsburgh, PA.;Industrial Environmental Research Lab., Reseach Triangle Park, NC.
Publisher The Office ; Available to the public through the National Technical Information Service,
Year Published 1979
Report Number EPA-600/7-79-021; EPA-68-02-2142
Stock Number PB-292 704
OCLC Number 07190326
Subjects Fluidization ; Fluidized-bed furnaces
Additional Subjects Air pollution control ; Fluidized bed processes ; Mathematical models ; Tests ; Design criteria ; Performance evaluation ; Solids ; Transport properties ; Specifications ; Fossil fuels ; Computer programs ; Chemically active fluid bed process ; CAFB process
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-600/7-79-021 Research Triangle Park Library/RTP, NC 12/12/2003
ELBD ARCHIVE EPA 600-7-79-021 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-7-79-021 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-292 704 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xv, 157 p. : ill., charts, plans ; 28 cm.
The report gives results of an experimental investigation of a pulsed, dense-phase pneumatic transport system for controlled circulation between adjacent fluidized beds. A model was developed to predict performance. The program provides technical support for EPA's program to demonstrate the Chemically Active Fluid Bed (CAFB) Process, being developed to produce a clean, low heating value fuel gas from fossil fuels. A cold model test facility, capable of transporting up to about 6.3 kg/s, was built and operated to demonstrate effects of key parameters. Generated data were utilized in the development of a mathematical model of the system which allows projection of the effects of key variables. Solids flow is controlled by pulsed air input, whose on-time(<0.3 to 0.4s) and off-time (1.5 to 2.0s) should be controlled for best performance. The system pressure balance should also be carefully controlled. Expected demonstration plant bed-material density may result in higher air requirements than was predicted in the plant design. Wider legs and more nozzles or greater transport-gas capacity may alleviate this difficulty.
"EPA-600/7-79-021"--Cover. "January 1979"--Cover. "Westinghouse Research and Development Center"--T.p. "Contract No. 68-02-2142, Program Element No. EHE623A"--T.p. "EPA Project Officer: Samuel L. Rakes"--T.p. "Industrial Environmental Research Laboratory, Office of Energy, Minerals and Industry"--T.p. Includes bibliographical references.