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Comparative Study of Lead and Cadmium Compounds Capture by Sorbents

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dc.creator Yao, Hong
dc.creator Saito, Noboru
dc.creator Mkilaha, Iddi
dc.creator Naruse, Ichiro
dc.date 2016-07-12T11:31:29Z
dc.date 2016-07-12T11:31:29Z
dc.date 2002-04
dc.date.accessioned 2018-03-27T08:38:00Z
dc.date.available 2018-03-27T08:38:00Z
dc.identifier Yao, H., Saito, N., Mkilaha, I.S. and Naruse, I., 2002. Comparative Study of Lead and Cadmium Compounds Capture by Sorbents. Journal of chemical engineering of Japan, 35(5), pp.401-408.
dc.identifier http://hdl.handle.net/20.500.11810/3112
dc.identifier 10.1252/jcej.35.401
dc.identifier.uri http://hdl.handle.net/20.500.11810/3112
dc.description Full text can be accessed at https://www.jstage.jst.go.jp/FF01S040Init?sourceurl=%2Farticle%2Fjcej%2F35%2F5%2F35_5_401%2F_pdf
dc.description Trace metal compounds, which are emitted from combustion systems such as waste incinerators, coal combustors, and so forth, enrich in fine particulates, usually formed during various stages of combustion. Owing to the difficulties of capturing fine particulates by conventional particulate dust collection systems, these are exhausted in the atmosphere. Fundamentals of the emission and control of trace metal compounds of lead and cadmium were studied at relatively low temperature (1073-1273 K), using a thermobalance. In order to capture these trace metal compounds, seven types of sorbent, namely alumina, silica, kaolin, limestone, scallop, zeolite and apatite, were used. As a result, the natural aluminosilicate materials like kaolin and zeolite were found to be effective in capturing lead and cadmium chemically. Although the presence of HCl decreases capture efficiencies, the products didn't react with HCl. The types of kaolin had a little influence on the capture efficiency and processes in general. On the other hand, the calcium-based sorbents like limestone, scallop and apatite, could capture both the trace metals and chlorine. On the presence of HCl, the capture efficiencies of these sorbents decreased sharply. Both alumina and silica have low ability to capture trace metal compounds. Moreover, in reducing atmosphere, all sorbents showed low capture abilities since the products were reduced.
dc.language en
dc.subject Combustion
dc.subject Fine Particulate
dc.subject Trace metals
dc.subject Sorbent
dc.title Comparative Study of Lead and Cadmium Compounds Capture by Sorbents
dc.type Journal Article


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