You are here:
CALCINATION AND SINTERING MODELS FOR APPLICATION TO HIGH-TEMPERATURE, SHORT-TIME SULFATION OF CALCIUM-BASED SORBENTS
Citation:
Milne, C., G. Silcox, D. Pershing, AND D A. Kirchgessner*. CALCINATION AND SINTERING MODELS FOR APPLICATION TO HIGH-TEMPERATURE, SHORT-TIME SULFATION OF CALCIUM-BASED SORBENTS. INDUSTRIAL ENGINEERING & CHEMICAL RESEARCH 29(2):139-149, (1990).
Impact/Purpose:
Information.
Description:
To simulate the staged availability of transient high surface area CaO observed in high-temperature flow-reactor data, the rate of calcination of CaCO3 or Ca(OH)2 is described by an empirical modification of the shrinking-core model. The physical model depicts particle decomposition by the shrinking-core mechanism. The subsequent time-dependent decrease in CaO reactivity (surface area and porosity) due to sintering is simulated by reducing the grain-center spacing for the matrix of overlapping CaO grains. Information from SEM micrographs and from other physical property measurements of the porous particles is incorporated. This submodel simulates the time-dependent availability and reactivity of CaO for a comprehensive model used to study sulfation of CaCO3 and Ca(OH)2 particles at upper-furnace injection conditions.
URLs/Downloads:
CALCINATION AND SINTERING MODELS FOR APPLICATION TO HIGH-TEMPERATURE, SHORT-TIME SULFATION OF CALCIUM-BASED SORBENTS (PDF, NA pp, 603 KB, about PDF)JOURNAL ACCESS
