Rotational asymmetry of reactant concentration and its evolution in a circulating fluidized bed riser 被引量：1

Rotational asymmetry of reactant concentration and its evolution in a circulating fluidized bed riser

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摘要 Rotational asymmetric distribution of reactant （ozone） concentration and its evolution along with the gas-solid reactive flow were studied in a 76 mm i.d., 10.2 m high circulating fluidized bed （CFB） riser reactor. The superficial gas velocity ranged from 3 to 5 m/s and the solids circulation rates were 50 and 100 kg/（m2 s）. Experimental results show that the asymmetry of reactant distribution can extend to a height close to the length of flow developing zone of the CFB riser reactor and then disappears. Based on the hydrodynamics of the gas and solid phases in the solids entrance region, this asymmetry can be attributed to the effect of the solids entrance structure. Rotational asymmetric distribution of reactant （ozone） concentration and its evolution along with the gas-solid reactive flow were studied in a 76 mm i.d., 10.2 m high circulating fluidized bed （CFB） riser reactor. The superficial gas velocity ranged from 3 to 5 m/s and the solids circulation rates were 50 and 100 kg/（m2 s）. Experimental results show that the asymmetry of reactant distribution can extend to a height close to the length of flow developing zone of the CFB riser reactor and then disappears. Based on the hydrodynamics of the gas and solid phases in the solids entrance region, this asymmetry can be attributed to the effect of the solids entrance structure.

作者 Ajay K.Ray Madhumita B.Ray Jesse Zhu

机构地区 Department of Chemical and Biochemical Engineering

出处《Particuology》 SCIE EI CAS CSCD 2012年第5期573-581,共9页 颗粒学报（英文版）

关键词 Circulating fluidized bedsRiserOzone decompositionRotational asymmetry Circulating fluidized bedsRiserOzone decompositionRotational asymmetry

分类号 TQ021 [化学工程]

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参考文献14

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