Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Desulfurization kinetics of ten bituminous coals
Author Vestal, Marvin L. ; Day, II, Allan G. ; Snyderma, J. S. ; Fergusso, Gordon J. ; Lamp, F. W.
Other Authors
Author Title of a Work
Johnston, William H.
CORP Author Scientific Research Instruments Corp., Baltimore, Md.
Publisher Scientific Research Instruments Corp.,
Year Published 1969
Report Number PH 86-68-65; SRIC-68-13
Stock Number PB-185 882
OCLC Number 37038628
Additional Subjects ( Coal ; Air pollution) ; ( Sulfur compounds ; Coal) ; Pyrolysis ; Chemical engineering ; Reaction kinetics ; Absorption(Physical) ; Hydrogen ; Coal gasification ; Desulfurization ; Hydrogen sulfide
Library Call Number Additional Info Location Last
EKBD  PHS-0032 Research Triangle Park Library/RTP, NC 06/20/1997
NTIS  PB-185 882 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 60 p. : ill. ; 28 cm.
The theory of the non-isothermal technique for the study of the kinetics of complex heterogenous reactions has been extended to include reactive flush gases and back reactions of the products, and has been applied to experimental studies of pyrolysis, desulfurization, and gasification of coals in a series of twenty three non-isothermal experiments. In addition, facilities were constructed for isothermal experiments and a series of nineteen runs were conducted, utilizing both fast and slow heating rates to reach the isothermal operating temperature. The variables studied included coal particle size, flush-gas composition, gas flow rates, and the forms of sulfur in the coal. The objectives of the work were to determine kinetics of desulfurization of coal as an aid to the design, operation, and the evaluation of new process systems for practical desulfurization. A series of reaction types have been identified, and their kinetic parameters measured, during pyrolysis of coal in a hydrogen atmosphere. These are: the reaction of volatile organic sulfur with hydrogen; the reaction of pyrite with hydrogen to form sulfide; and the reaction of hydrogen with the sulfide and organic sulfur associated with the fixed carbon. Sulfate in the coal was reduced to sulfide prior to its transformation to hydrogen sulfide. (Author)
"Interim report on work performed under Contract PH 86-68-65 with the Public Health Service, National Air Pollution Control Administration." "Report No. SRIC 69-10." "June 1969." Contains bibliographical references (59-60)