RESEARCH AND NUMERICAL SIMULATION ON GAS SOLID FLOW CHARACTERISTICS OF BIOMASS DUAL FLUIDIZED BED

被引：0
|
作者：
Xiao B. [1 ]
Wang X. [1 ]
Song Y. [1 ]
Zhang B. [1 ]
Wu S. [1 ]
机构：
[1] SINOPEC Dalian Research Institute of Petroleum and Petrochemicals, Dalian
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 03期
关键词：
biomass; CFD simulation; dual fluidized bed; gas-solid flow; hydrogen production; reactor design;
D O I：
10.19912/j.0254-0096.tynxb.2022-1768
中图分类号：
学科分类号：
摘要：
By means of a cold state device of dual fluidized bed，the effects of fluidization air and loose air on the fluidization form of particles in the fluidized bed，the height of the granule and the amount of solid circulation are investigated. When the fluidization air is 5 m3/h，the particles in the fluidized bed gasifier are bubbling. The height of the granule is related to the pressure difference on both sides of the feed recycle devices. The greater the pressure difference，the lower the height of the granule in feed recycle devices. The pressure difference between the two sides of the feed recycle devices becomes smaller when the gas is reversed，and the height of the granule gradually increases. Without changing other conditions，when the lower loosening air is 3 m3 /h and below，increase the loosening air，and the particle circulation volume gradually increases. For this set of devices，the solid particle circulation volume reaches a maximum of 6.72 kg/h under certain conditions. The numerical simulation of the device shows that the fluidization form of particles in the model is consistent with the experiment. © 2024 Science Press. All rights reserved.
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页码：133 / 138
页数：5
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