Development of Desulfurization Reactivity Index for Quicklime from Eight Locations
| Accession number;06A0044963 |
| Title;Development of Desulfurization Reactivity Index for Quicklime from Eight Locations |
| Author;IMAI TSUTOMU(Ueda Lime Co., Ltd., JPN) IMAI TSUTOMU(Gifu Univ., Graduate School of Engineering, JPN) KAMBARA SHINJI(Gifu Univ., Graduate School of Engineering, JPN) MORITOMI HIROSHI(Gifu Univ., Graduate School of Engineering, JPN) |
Journal Title;J Soc Inorg Mater Jpn
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Journal Code:F0275A
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ISSN:1345-3769
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VOL.13;NO.320;PAGE.16-23(2006)
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| Figure&Table&Reference;FIG.11, TBL.3, REF.11 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Aim of this paper is to develop an evaluation index of desulfurization reactivity for quicklime calcined limestone that produced from eight different mining in Japan. The quicklime is calcined at 1173K under air atmosphere, and the desulfurization reactivity is investigated by a fixed bed quartz reactor. The desulfurization experiments are performed for 120 min at 1173K under SO2/N2 atmosphere. Variation of CaO conversion during reaction obtained for eight different quicklime. Effects of physical and chemical characteristics of limestone or quicklime on CaO conversion are examined. Geological time, thermal conductivity, calcination temperature, crystal grain size, surface area and pore volume are analyzed for an investigation of the evaluation index. The quicklime having macro-pore over 1.MU.m shows good desulfurization reactivity. Therefore, CaO conversion, X120, is closely connected with total macro-pore volume for over 1.MU.m, Pv1.0. Its correlation coefficient, R'2', is 0.945. The desulfurization reactivity for various limestone is able to estimate accurately by the evaluation index, Pv1.0. (author abst.) |
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