Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review

doi:10.1016/j.cjche.2015.07.004

Chinese Journal of Chemical Engineering ›› 2016, Vol. 24 ›› Issue (1): 53-62.DOI: 10.1016/j.cjche.2015.07.004

• 第25届中国过程控制会议专栏 • 上一篇下一篇

Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review

Chengxiu Wang¹, Jesse Zhu^1,2

1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;
2 Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada

收稿日期:2015-03-14 修回日期:2015-06-09 出版日期:2016-01-28 发布日期:2016-02-23
通讯作者: Jesse Zhu
基金资助:
Supported by the Scientific Research Funds from China University of Petroleum (Beijing) (No. 2462014YJRC018), and also partially supported by the National Natural Science Foundation of China (No. 21506253 and No. 91534204).

Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review

Chengxiu Wang¹, Jesse Zhu^1,2

1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;
2 Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada

Received:2015-03-14 Revised:2015-06-09 Online:2016-01-28 Published:2016-02-23
Contact: Jesse Zhu
Supported by:
Supported by the Scientific Research Funds from China University of Petroleum (Beijing) (No. 2462014YJRC018), and also partially supported by the National Natural Science Foundation of China (No. 21506253 and No. 91534204).

摘要/Abstract

摘要： In the last several decades, circulating fluidized bed reactors have been studied in many aspects including hydrodynamics, heat and mass transfer and gas-solid two phase contacting. However, despite the abundance of review papers on hydrodynamics, there is no summary paper on gas-solid contact efficiency to date, especially on high density circulating fluidized beds (CFBs). This paper gives an introduction to, and a review of the measurement of contact efficiency in circulating fluidized bed riser. Firstly, the popular testing method of contact efficiency including the method of heating transfer experiment and hot model reaction are discussed, then previous published papers are reviewed based on the discussed methods. Some key results of the experimental work are described and discussed. Gas-solid contact efficiency is affected by the operating conditions as well as the particle size distribution. The result of the contact efficiency shows that the CFB riser is far away froman ideal plug flowreactor due to the characteristics of hydrodynamics in the riser. Lacunae in the available literature have been delineated and recommendations have been made for further work.

关键词: Circulating fluidized bed, Riser, High density, Gas-solid contacting, Heat transfer, Ozone decomposition

Abstract: In the last several decades, circulating fluidized bed reactors have been studied in many aspects including hydrodynamics, heat and mass transfer and gas-solid two phase contacting. However, despite the abundance of review papers on hydrodynamics, there is no summary paper on gas-solid contact efficiency to date, especially on high density circulating fluidized beds (CFBs). This paper gives an introduction to, and a review of the measurement of contact efficiency in circulating fluidized bed riser. Firstly, the popular testing method of contact efficiency including the method of heating transfer experiment and hot model reaction are discussed, then previous published papers are reviewed based on the discussed methods. Some key results of the experimental work are described and discussed. Gas-solid contact efficiency is affected by the operating conditions as well as the particle size distribution. The result of the contact efficiency shows that the CFB riser is far away froman ideal plug flowreactor due to the characteristics of hydrodynamics in the riser. Lacunae in the available literature have been delineated and recommendations have been made for further work.

Key words: Circulating fluidized bed, Riser, High density, Gas-solid contacting, Heat transfer, Ozone decomposition

Chengxiu Wang, Jesse Zhu. Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review[J]. Chinese Journal of Chemical Engineering, 2016, 24(1): 53-62.

Chengxiu Wang, Jesse Zhu. Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review[J]. Chin.J.Chem.Eng., 2016, 24(1): 53-62.

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Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review

Developments in the understanding of gas-solid contact efficiency in the circulating fluidized bed riser reactor: A review

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