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

Dongbing Li; Ajay K. Ray; Madhumita B. Ray; Jesse Zhu

doi:10.1016/j.partic.2012.03.012

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

Dongbing Li, Ajay K. Ray, Madhumita B. Ray, Jesse Zhu

Research output: Journal Publication › Article › peer-review

8 Citations (Scopus)

Abstract

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/(m ² 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.

Original language	English
Pages (from-to)	573-581
Number of pages	9
Journal	Particuology
Volume	10
Issue number	5
DOIs	https://doi.org/10.1016/j.partic.2012.03.012
Publication status	Published - Oct 2012
Externally published	Yes

Keywords

Circulating fluidized beds
Ozone decomposition
Riser
Rotational asymmetry

ASJC Scopus subject areas

General Chemical Engineering
General Materials Science

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10.1016/j.partic.2012.03.012

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title = "Rotational asymmetry of reactant concentration and its evolution in a circulating fluidized bed riser",

abstract = "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/(m 2 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.",

keywords = "Circulating fluidized beds, Ozone decomposition, Riser, Rotational asymmetry",

author = "Dongbing Li and Ray, {Ajay K.} and Ray, {Madhumita B.} and Jesse Zhu",

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doi = "10.1016/j.partic.2012.03.012",

language = "English",

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T1 - Rotational asymmetry of reactant concentration and its evolution in a circulating fluidized bed riser

AU - Li, Dongbing

AU - Ray, Ajay K.

AU - Ray, Madhumita B.

AU - Zhu, Jesse

PY - 2012/10

Y1 - 2012/10

N2 - 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/(m 2 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.

AB - 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/(m 2 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.

KW - Circulating fluidized beds

KW - Ozone decomposition

KW - Riser

KW - Rotational asymmetry

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DO - 10.1016/j.partic.2012.03.012

M3 - Article

AN - SCOPUS:84867858363

SN - 1674-2001

VL - 10

SP - 573

EP - 581

JO - Particuology

JF - Particuology

IS - 5

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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