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- W316214910 abstract "Objective of this project is to study the fundamental nature of the sorbent reactivity and reaction kinetics by systematically conducting kinetics experiments on the flue gas--calcium based sorbent reaction and analyzing the experimental data which would enable us to develop a realistic model for dry flue-gas-desulfurization process development. The objective of the first year research is to experimentally and theoretically study the kinetics of the simultaneous sulfation/dehydration reactions between the flue gas and the calcium-base sorbents in the form of CaO and Ca(OH){sub 2} under the influence of humidity and other gaseous components. Two types of experimental reactors, a fixed bed reactor and a TGA type both a small-scale TGA reactor and a large-scale TGA reactor, were used to conduct the slow-kinetic studies taking more than 1 minute. The fixed bed reactor and the TGA reactor can provide an effective experimental means to simulate the medium-to-high-temperature sorbent reaction in a fixed bed condition, like the potential high temperature (600--800{degrees}F) baghouse application on SO{sub 2} control. The work on computer data processing and modelling enables us to obtain the reaction history information, instead of the final information only. The history information is very helpful to reveal the reaction mechanism. The obtainedmore » dehydration kinetics model, which is less influenced by the mass transfer resistance, could be used to estimate the behaviors of suspended gas solid reactions as well as those take place in a fixed bed reactor. The fact that the TGA carbonation and sulfation results were so dependent on TGA sample size, indicates a significant effects of bulk phase mass transfer. The fixed-bed test results showed that the optimum sulfation temperature under the present test condition was about 700{degrees}F. The drop tube reactor, which is being constructed, will provide an effective means to study the sorbent--flue gas reactions--in suspended state.« less" @default.
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- W316214910 date "1992-07-01" @default.
- W316214910 modified "2023-09-27" @default.
- W316214910 title "Kinetics studies, thermal decomposition and effects of humidity and additives. Final report, June 1, 1990--June 30, 1991" @default.
- W316214910 hasPublicationYear "1992" @default.
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