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- W2379415650 abstract "It has been verified that the calcium conversion rate of calcium-based sorbents and the sulfur removal rate of the medium temperature FGD process can be enhanced remarkably by reactivating the spent sorbents by using steam. In order to better understand the mechanism of steam reactivation, the physical and chemical characteristics of sorbents has been studied through analyzing the composition and the apparent construction of the sorbent before and after steam treatment. A new phenomenon - CaO transfer from the inside of sorbent particles to the surface - has been found, i.e. unreacted CaO in sorbent core is converted to Ca(OH)2 by hydration reaction with steam and then transferred to the sorbent surface due to expansion effects. During the sulfation reaction Ca(OH)2 is decomposed and reduced to CaO at its decomposition temperature, which encourages reactions with SO2. In addition, the improvement of the pore structure on the surface of sorbent particles and the SO2 diffusion to sorbents, which are caused by CaO transfer process, has been realized." @default.
- W2379415650 created "2016-06-24" @default.
- W2379415650 creator A5091161768 @default.
- W2379415650 date "2002-01-01" @default.
- W2379415650 modified "2023-09-24" @default.
- W2379415650 title "MECHANISM OF IMPROVING THE MEDIUM TEMPERATURE FGD PROCESS BY REACTIVATING SORBENTS BY STEAM" @default.
- W2379415650 hasPublicationYear "2002" @default.
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