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- W3144894707 abstract "Dynamic simulation models capable of describing the high temperature sulfidation and regeneration reactions of metal oxide sorbents in fixed-, fluidized-, and moving-bed reactors have been developed. In the sulfidation phase energy effects are minimal and the models are based upon the appropriate component material balances in both the gas and solid phases. Individual particle kinetics for the fixed- and moving-bed reactors are based upon the unreacted core model. The isothermal fixed-bed model can predict the H/sub 2/S concentration and sorbent sulfur loading in the reactor as a function of time and axial position, as well as the reactor effluent H/sub 2/S concentration as a function of time. Model results compare favorably to experimental data from laboratory fixed-bed reactors when the effective diffusivity is treated as an adjustable parameter. Similarly, experimentally determined temperature profiles during sorbent regeneration can be matched at least qualitatively using the nonisothermal fixed-bed reactor model. The fluidized-bed model is based upon the Kunii-Levenspiel three-phase bubble description of the fluidized-bed. Modified equations capable of describing a batch fluidized-bed reactor were also developed. The moving-bed model is based upon the assumption of plug flow of both the gas and solid phases. 55 refs., 74 figs." @default.
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- W3144894707 date "1988-03-01" @default.
- W3144894707 modified "2023-09-27" @default.
- W3144894707 title "Dynamic simulation models for high-temperature desulfurization processes: Final report" @default.
- W3144894707 hasPublicationYear "1988" @default.
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