ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Experimental information available in the literature for the sulfation of a wide variety of calcined limestones and dolomites has been used to establish rates of reaction over their entire range of conversion. The reaction rate was found to decay exponentially with extent of conversion and implicated parameters related to two factors, each factor representing a diffusional resistance. These factors define two generalized constants which permit the prediction of the decaying parameters associated with the sorptive capacity of the sorbent.The sorptive capacity, x∞, which represents the ultimate conversion of the solid sorbent, has been found to depend on the pore size distribution, the chemical composition of the limestone and/or dolomite and its accessible pore surface area. The combined contribution of x∞ along with predicted parameters permit the calculation of conversion vs. time relationships that are found in close agreement with experimental measurements for the ten sorbents investigated, with the exception of one.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690300314
