Mixing evolution behavior of raw and gasified biomass pellets in a fluidized bed reactor

被引：4

作者：

Wang, Shen ^{[1
]}

Song, Tao ^{[2
]}

Jarolin, Kolja ^{[3
]}

Dymala, Timo ^{[3
]}

Dosta, Maksym ^{[3
]}

Heinrich, Stefan ^{[3
]}

Shen, Laihong ^{[1
]}

机构：

[1] Southeast Univ, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Peoples R China

[2] Nanjing Normal Univ, Sch Energy & Mech Engn, Nanjing 210023, Peoples R China

[3] Hamburg Univ Technol, Inst Solids Proc Engn & Particle Technol, D-21073 Hamburg, Germany

来源：

CHEMICAL ENGINEERING SCIENCE | 2022年 / 264卷

基金：

中国国家自然科学基金;

关键词：

Biomass pellet; Gasification; Fluidized bed; Binary mixing evolution; Convolutional neural networks; SEGREGATION BEHAVIOR; OXYGEN CARRIER; PARTICLES; GASIFICATION; COMBUSTION; FREQUENCY; SIZE;

D O I：

10.1016/j.ces.2022.118161

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Due to a large particle size and a small specific surface, a homogeneous mixing of biomass pellets with bed materials during gasification plays a critical role in the devolatilization and carbon conversion. In this work, the mixing evolution behavior of biomass pellets at different gasification stages is investigated for the first time. Two bubbling fluidized beds are established to perform the preparation of biomass samples undergoing different gasification times and visualized mixing experiments, respectively. An image processing technique is introduced for the determination of the real-time distribution of biomass pellets. The vertical and lateral migration paths of biomass pellets at different gasification stages are revealed. The improvement of binary mixing by adjusting the operating conditions as well as the adaptability to different biomass loadings are discussed. A convolutional neural network is developed to validate the influence of fluidization velocity on the resulting flow and classify the fluidization behavior. (C) 2022 Published by Elsevier Ltd.

引用

页数：14

共 50 条

[31] OXIDATIVE DESTRUCTION OF NUCLEAR FUEL PELLETS IN A FLUIDIZED-BED REACTOR
AGEENKOV, AT
SAVELEV, VF
VALUEV, EM
NILOV, NA
GALPERIN, EN
RYBAKOV, EI
ATOMNAYA ENERGIYA, 1973, 35 (05): : 362 - 363
[32] Air gasification of wood chips, wood pellets and grass pellets in a bubbling fluidized bed reactor
Bandara, Janitha C.
Jaiswal, Rajan
Nielsen, Henrik K.
Moldestad, Britt M. E.
Eikeland, Marianne S.
ENERGY, 2021, 233
[33] Movement and mixing behavior of a single biomass particle during combustion in a hot fluidized bed combustor
Yang, Zhihao
Duan, Lunbo
Li, Lin
Liu, Daoyin
Zhao, Changsui
POWDER TECHNOLOGY, 2020, 370 : 88 - 95
[34] FREQUENCY RESPONSE OF GAS MIXING IN A FLUIDIZED-BED REACTOR
BARNSTONE, LA
HARRIOTT, P
AICHE JOURNAL, 1967, 13 (03) : 465 - +
[35] Kinetic behavior of biomass under oxidative atmosphere using a micro-fluidized bed reactor
Guo, Feiqiang
Dong, Yuping
Lv, Zhaochuan
Fan, Pengfei
Yang, Shuai
Dong, Lei
ENERGY CONVERSION AND MANAGEMENT, 2016, 108 : 210 - 218
[36] EFFECTS OF PARTICLE MIXING ON THE TEMPERATURE IN A FLUIDIZED-BED REACTOR
PROKOPENKO, AN
BARTOV, AT
TUBIN, LA
JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1984, 57 (08): : 1752 - 1753
[37] Manufacture of wood biomass activated carbon in a fluidized bed reactor
Kanagawa, Koji
Kobayashi, Nobusuke
Kobayashi, Jun
Hatano, Shigenobu
Itaya, Yoshinori
Mori, Shigekatsu
KAGAKU KOGAKU RONBUNSHU, 2006, 32 (05) : 442 - 447
[38] A Devolatilization Model of Woody Biomass Particle in a Fluidized Bed Reactor
Kim, Kwangsu
Leckner, Bo
Lee, Jeongwoo
Lee, Uendo
Choi, Youngtai
KOREAN CHEMICAL ENGINEERING RESEARCH, 2012, 50 (05): : 850 - 859
[39] Thermal decomposition of waste plastics and biomass in a fluidized bed reactor
Jankowski, Dawid
Baron, Jerzy
Zukowski, Witold
Kandefer, Stanislaw
PRZEMYSL CHEMICZNY, 2013, 92 (05): : 772 - 779
[40] A Novel Approach to Modeling Biomass Pyrolysis in a Fluidized Bed Reactor
Caudle, Benjamin
Gorensek, Maximilian B.
Chen, Chau-Chyun
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2020, 8 (38) : 14605 - 14615

← 1 2 3 4 5 →