文献类型：期刊文献

英文题名：Analysis of performance of novel hydrocyclones in ebullated bed reactor with different vortex finder structures

作者：Wang, Yao[1];Chang, Yu-long[1];Li, Jian-ping[1];Wang, Hua-lin[1];Li, Li-quan[2];Chen, Chong-gang[2];Zhao, Ying[2];Yuan, Yuan-ping[3]

机构：[1]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]SINOPEC, Luoyang Petrochem Engn Corp LPEC, Luoyang 471003, Henan, Peoples R China;[3]Henan Baiyoufu Biol Energy Co Ltd, Zhengzhou 450000, Henan, Peoples R China

年份：2020

卷号：158

起止页码：89

外文期刊名：CHEMICAL ENGINEERING RESEARCH & DESIGN

收录：;EI(收录号：20201708556638);WOS:【SCI-EXPANDED(收录号:WOS:000535894800009)】；

基金：This work was supported by the sponsorship of National Key Research and Development Program of China (2016YFC0204500), National Natural Science Foundationof China (51608203), the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Axial-flow hydrocyclone; Vortex finder; Particle separation; Computational fluid dynamics; Ebullated; Bed reactor

摘要：A novel axial-flow hydrocyclone in the ebullated bed reactor is proposed to solve problems such as low space utilization rate, low operation flexibility and complex device structure. This study presents a numerical and experimental study of the liquid-solid two-phase flow and the performance of the hydrocyclone, with focus on the effects of length h(c), taper angle alpha(c) and diameter D-2 of the vortex finder over a certain range of inlet flow rates. Results show that the influence of D-2 on separation performance is more significant than the influence of either h(c) or alpha(c). Increasing D-2, increasing h(c) or decreasing alpha(c) are all beneficial to improve separation efficiency, and separation performance decreases as inlet flow rate increases. When the dimension and structure of the vortex finder and inlet flow rate change, it is always accompanied by a low-level pressure drop (400 Pa-650 Pa). Considering separation efficiency and pressure drop, a hydrocyclone with a cylindrical vortex finder with h(c) of 335 mm and D-2 of 75 mm is the optimum hydrocyclone. Overall, this study provides guidance for the design of axial-flow hydrocyclones for particle separation in ebullated bed reactors. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.