Fluidization characteristics of wide-size-distribution particles in a gas-solid fluidized bed reactor-Reference-Cited by-同舟云学术

Fluidization characteristics of wide-size-distribution particles in a gas-solid fluidized bed reactor

Published:2020-11-03 Issue:12 Volume:18 Page:
ISSN:1542-6580
Container-title:International Journal of Chemical Reactor Engineering
language:en
Short-container-title:

Author:

Li Chaojie¹,Wang Weiwen¹,Guo Xiuling¹,Duan Jihai¹

Affiliation:

1. State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao , China

Abstract

Abstract Fluidization characteristics of wide-size-distribution particles in the gas-solid fluidized bed reactor are investigated by applying experiment and computational fluid dynamics (CFD) methods. In this study, three types of narrow-cut particles and two sets of wide-size-distribution particles are used. A model considering particle size distribution is developed in the Eulerian frame, and good agreement between numerical results and experimental data is observed. The particle size distribution has an important effect on the average bed voidage. The axial particle diameter profiles along bed height have a “S” type feature. Minimum fluidization velocity is determined from the standard deviation of pressure fluctuations and bubble dynamics are analyzed based on power spectra. Results indicate that fine particle composition can reduce the minimum fluidization velocity of wide-size-distribution particle system and the bubble diameter in the fluidized bed.

Funder

Key Research and Development Program in Shandong Province

National Natural Science Foundation of China

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering

Link

https://www.degruyter.com/document/doi/10.1515/ijcre-2020-0100/pdf

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