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Title	Experimental Study on the Desulfuration of Calcined Limestones Produced in Northeastern Part of China
Creator	Li, Chengzhi; He, Jicheng; Wu, Xinlin; Suzuki, Yoshizo; Moritomi, Hiroshi; Kido, Nobuo
Publisher	Digitized by J. Willard Marriott Library, University of Utah
Date	1994
Spatial Coverage	presented at Maui, Hawaii
Abstract	Desulfurational experiment of four kinds of limestones produced in the northeastern part of China were done in a fixed bed. Their characteristic of desulfuration are quite different . Their pore structures which were derived from the calcination were studied. It was found that the specific volume and specific surface area of calcined limestones have the important influences on the capacity of SO% capture. Therefore, the sequence of the desulfuration of limestones are listed. The pore size distribution showed that the radius range of most of pores which play important role for desulfuration are 10-7~1 0-6m which corresponds the order of magnitude of the mean free path of SO% and O2 molecules. It is reasonable to think that the reaction of the SO2 with CaO on sarface of desulfurizer is by molecular diffusion controlld.
Type	Text
Format	application/pdf
Language	eng
Rights	This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications	Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician	Cliodhna Davis
ARK	ark:/87278/s6wq06c7
Setname	uu_afrc
ID	9165
Reference URL	https://collections.lib.utah.edu/ark:/87278/s6wq06c7

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Title	Page 10
Format	application/pdf
OCR Text	Show \,1./ (!;t) 1".1]0 ~ 10 1; (rrtln) Fig.6 Dependence of weight gain on time for 4 kinds limes one at 1123 K O.S ---....,.--..--.......,---_~---.-~ 25 ~ou Fong ~Ong limeslo,,~ ~ O. '" ....... - .. ....... j .... - .-.............•.. [ ... .; .............. - ....... 2 ("') £E. 0.3 .......................; . ........... . ~ Q) 1.5 Cl E .g 0.2 > Q) ~ 0.1 0 O.s 10 100 Pore Radius (nm] O.S r:::=:=r::::::::::::::::r::;-"""'---1-1 2.5 ( N~no Ola'" lime"one . ) ! C;; 0 .• M E ~ 03 CI) E ~ (5 02 > CI) a0.. 0 .1 =-~~~~~r==·~-~~-r: -.---.---r--.~·--=-.- : i : ---·--·-r····--·····-_···J···-····-·····1·--·-----··· ~·········r·····-·-·-· I .S os 0 to 100 Pore R::tdius /nml Fig. 7 P are volume and pore radius dDist' riburt ion for Dou Fang Dong and Nang Ian tme stone. .!2 :€ > "0 -=- Cl .!2 ~ "0 _ o . ~ ~ (") E ~ 0.3 o E ~ (5 02 > Q) o ct. 0.1 o Dou Fong Dong Nang Dian Da Ming S.., Limestone Fig. 8 Pore volume of calcined Jimest.one. 20 ~ ______ ~ ____ ~~ ______ -, 15 _ .... --.,--.. - ....... - .. _.-.;.--.. _ .•. - ......... - -1 10 ~ . _._ .. __ =~.~_ .. _,._._ ... __ . __ .. ~_. __ ._. ____ . ~ o Oou Fong Dong Nang Dian Oa MinO San Limestone Fig . 9 Surface area of calcined limestone.
Setname	uu_afrc
ID	9163
Reference URL	https://collections.lib.utah.edu/ark:/87278/s6wq06c7/9163