Fluidization of particles in SCW fluidized bed: Voidage distribution of emulsion phase

被引：7

作者：

Wang, Hao ^{[1
]}

Lu, Youjun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China

来源：

PARTICUOLOGY | 2022年 / 63卷

基金：

国家重点研发计划;

关键词：

Supercritical water fluidized bed; Capacitance probe measurement system; Voidage distribution; SUPERCRITICAL WATER; BIOMASS GASIFICATION; HYDROGEN-PRODUCTION; CAPACITANCE PROBE; HEAT-TRANSFER; GAS; SOLIDS; BUBBLE; FLOW; PRESSURE;

D O I：

10.1016/j.partic.2021.04.019

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Supercritical water (SCW) fluidized bed reactors convert biomass to fuels without pollutants emission. In this work, experimental studies were carried out to investigate voidage distribution in an SCW fluidized bed by capacitance probes. Quartz sands with different particle sizes were fluidized by SCW under system pressure of 20-27 MPa and temperature of 410-570 degrees C. The effect of operation conditions on voidage distributions of the emulsion phase (e.g. averaged voidage and probability density) is discussed. A predicting correlation between voidage and superficial velocity in emulsion phase is proposed. The relative error of the correlation is within +/- 25%. These research results provide useful guidance for the optimization of supercritical water gasification technology. (c) 2021 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：60 / 75

页数：16

共 33 条

[1] BEHAVIOR OF GAS-FLUIDIZED BEDS OF FINE POWDERS .2. VOIDAGE OF THE DENSE PHASE IN BUBBLING BEDS [J].