Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title The Influence of sorbent physical properties upon reactivity with sulfur dioxide /
Author Cole, J. A.
Other Authors
Author Title of a Work
Kramlich, J. C.
Seeker, W. R.
Silcox, G. D.
Publisher U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory,
Year Published 1988
Report Number EPA/600-S2-87-105
OCLC Number 741838535
Subjects Sorbents. ; Sulfur dioxide.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-S2-87-105 In Binder Headquarters Library/Washington,DC 01/30/2018
EJBD  EPA 600-S2-87-105 In Binder Headquarters Library/Washington,DC 10/31/2018
EKBD  EPA-600/S2-87-105 Research Triangle Park Library/RTP, NC 12/15/2016
Collation 5 pages : illustrations ; 28 cm
Caption title. "Feb. 1988." At head of title: Project summary. "EPA/600-S2-87-105.
Contents Notes
"Sulfation behavior was measured at 1000 and 1200ÀC for eight calcium oxide sorbents which were well characterized in terms of particle size, pore structure, and specific surface area. Sulfation results were compared with predictions of a simple mathematical model which applied the measured sorbent characteristics. The comparisons, intended to provide direction for model development, suggest need for model improvement in areas such as global kinetics at short times, and accountability for changes in structure due to sintering during sulfation. Subsequently, the effects of the high temperatures on the surface areas of the sorbents in the absence of sulfation were also determined. Surface areas were marginally higher for the larger sorbents after 1000ÀC injection; but, in general, no correlation between particle size and surface area loss could be found. Surface area decay was shown to be very rapid in the first 200 ms, and subsequently very slow. Differences between carbonate and hydrate sorbents' reactivities were investigated using aerodynamically size-classified materials: hydrates were found more reactive on an equal prereactor size basis. Also, no thermal comminution of the hydrate particles was noted within the high temperature environment. Thus, the superiority of hydrates on a common prefiring size basis cannot be explained in terms of their fragmentation into smaller particles upon firing."