Record Display for the EPA National Library Catalog


Main Title Sulfur and nitrogen balances in the solvent refined coal process.
Author Wright, Charles H.
CORP Author Pittsburg and Midway Coal Mining Co., Merriam, Kans.;National Environmental Research Center, Research Triangle Park, N.C. Control Systems Lab.;Office of Coal Research, Washington, D.C.
Publisher Pittsburg and Midway Coal Mining Co.,
Year Published 1975
Report Number EPA 650/2-75-011; DI-14-01-0001-496; EPA-ROAP-21ADD-025
Stock Number PB-243 893
OCLC Number 11422965
Additional Subjects Solvent refined coal ; Air pollution ; Sulfur ; Nitrogen ; Coal liquefaction ; Coal preparation ; Sampling ; Chemical analysis ; Sources ; Carbon ; Hydrogen ; Air pollution control
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA-650-2-75-011 Headquarters Library/Washington,DC 07/17/2014
ELBD ARCHIVE EPA-650-2-75-011 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB-243 893 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 138 p. 28 cm.
The report gives results of an exact elemental balance study of the Solvent Refined Coal (SRC) process that was conducted with the Laboratory reactor to determine the fate of sulfur and nitrogen in the SRC process. The work was performed in late 1972 as part of a normal experiment with Kentucky No. 9 high volatile B bituminouius coal and a blend of processed anthracene oils under 1000 psig hydrogen pressure. A variety of technique studies had been made in preparation, such as investigation of the effects of sample size on analysis and methods of handling all samples of input and output material for maximum recovery and representative composition. Accounting for carbon and hydrogen was accurate, for sulfur good, and for nitrogen poor. A detailed comparison of conventional Kjeldahl and Dumas analytical results for nitrogen in coal and solid products revealed that input nitrogen is not fully reported by Kjeldahl and that sample size affects nitrogen results reported by Dumas. Nitrogen analysis needs further investigation. The study forced review of sampling and handling techniques as well, with salutary results in laboratory work.
"EPA 650/2-75-011." "January 1975."