Experimental study fluidized bed reactor using number hole 8 to see distribution gas fluid pressure

Eswanto Eswanto, Riza Refaya Pinem, Suprapto Suprapto

Abstract


Innovations related to fluidization systems using fluidized bed reactor are still needed to be developed in order to improve the fluidization process services for particle in order to produce the right fluid pressure in certain fluidized bed spaces that are currently operating. In this research, the pressurized fluid in question is air sourced from a compressor which has been arranged in such a way. The aim of the research is to obtain information regarding the characteristics of bubble resulting from the air pressure process pressing fluidized system particle. The research method was carried out by experimenting with testing fluidized bed reactor as test model in the form 8 hole, providing air pressure from compressor then observing the characteristics visually. The results of this visually documented research have been carried out and obtained. By using the number of hole 8 with height silica sand inserted to height of 25 cm, which is measured from the beginning of the hole plate before pressure is applied. After being given high pressure the bed increased to 27.6 cm, the highest bubble diameter was obtained at the input air pressure of 8 bar, which was 3.9 cm, with bed silica sand produced 26.1 cm, where the babble condition began to appear after the 9th second. Other characteristics also obtained reactor temperature of 25.45 °C where this condition is the smallest when compared to other pressure input results, this is because the small input pressure causes the temperature to be low, while the large pressure input temperature becomes higher due to many factor, including friction between silica sand, silica sand collisions, and faster movement of particle material.

Keywords


Fluidized bed, hole, reactor, silica particle, gas.

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References


S. Yu, X. Yang, J. Xiang, H. Zhou, Q. Li, Y. Zhang,”Effects of bed size on the voidage in gas-solid bubbling fluidized beds”,Powder Technology,Volume 387, pp. 197-204, 2021.

https://doi.org/10.1016/j.powtec.2021.04.035

J. Oshitani, S. Kato, T. Tsuji, K.Washino, S. Harada, H.Kajiwara, K. Matsuoka, G. V. Franks, “Influence of air velocity and powder bed height on local density and float - sink of spheres in a gas - solid fluidized bed”, Advanced Powder Technology, Volume 34, Issue 9, pp.1-8, 2023. https://doi.org/10.1016/j.apt.2023.104146.

J. Oshitani, T. Sasaki, T. Tsuji, K. Higashida, D.Y.C. Chan, “Anomalous sinking of spheres due to local fluidization of apparently fixed powder beds”, Phys. Rev. Lett. Vol.116, issue.6, 2016.

https://doi.org/10.1103/PhysRevLett.116.068001

K. Higashida, K. Rai, W. Yoshimori, T. Ikegai, T. Tsuji, S. Harada, J. Oshitani, T. Tanaka, “Dynamic vertical forces working on a large object floating in gas– fluidized bed: discrete particle simulation and Lagrangian measurement”, Chem. Eng. Sci. vol.151, pp.105–115, 2016.

DOI:10.1016/j.ces.2016.05.023

Z. Fu, J. Zhu, S. Barghi, Y. Zhao, Z. Luo, C. Duan, “The distribution of bed density in an air dense medium fluidized bed with single and binary mixtures of Geldart B and/or D particles”, Miner. Eng. Vol.142, 2019. https://doi.org/10.1016/j.mineng.2019.105926

W. Yoshimori, T. Ikegai, K. Uemoto, S. Narita, S. Harada, J. Oshitani, T. Tsuji, H. Kajiwara, K. Matsuoka, “Non–invasive measurement of floating-sinking motion of a large object in a gas–solid fluidized bed”, Granul. Matter 21, 42, 2019. https://doi.org/10.1007/s10035-019-0897-3

J. Oshitani, T. Sasaki, T. Tsuji, S. Harada, H. Kajiwara, K. Matsuoka, “Unstable sinking of spheres at higher air velocity in a gas–solid fluidized bed”, Adv. Powder Technol. Vol.32, issue.4, pp.1300-304, 2021. https://doi.org/10.1016/j.apt.2021.02.021

F. Xuchen, R.Yongxin, D.Liang, Z. Chenyang, Z. Yuemin. “Optimization of coal size for beneficiation efficiency promotion in gas–solid fluidized bed”, Particulate Science and Technology. Vol.41. pp.1-12,2022. Doi:10.1080/02726351.2022.2061393.

L. Wei., Y.Lu., Jiang, G., Hu, J., J.Zhu, "Unsteady-state bubble dynamic wave velocity of gas–solid bubbling fluidized bed", Chemical Engineering Research and Design, vol.126, pp.1–10,2017. https://doi.org/10.1016/j.cherd.2017.08.013

X. Li, M. Liu, Y. Li, "Bed expansion and multi-bubble behavior of gas-liquid-solid micro-fluidized beds in sub-millimeter capillary", Chemical Engineering Journal, vol.328, pp.1222–1138, 2017. https://doi.org/10.1016/j.cej.2017.07.107

B. Zhang, Y.M. Zhao, Z.F. Luo, S.L. Song, G.M. Li, S. Cheng, “Utilizing an air–dense medium fluidized bed dry separating system for preparing a low-ash coal”, Int. J. of Coal Prep. and Util., vol.34, issue.6, pp. 285-295, 2014. https://doi.org/10.1080/19392699.2014.880695

H.C. Su, Y.L. Liu, Z.L. Tian, S. Zhang, A.M. Zhang,”Coupling between a bubble and a liquid-liquid interface in viscous flow”, Int. J. Multiph. Flow,Vol. 160, 2023.

https://doi.org/10.1016/j.ijmultiphaseflow.2022.104373.

Y. Honda, S. Saito, T. Anzai, S. Harada, T. Tsuji, K. Washino, J. Oshitani, H. Kajiwara, K. Matsuoka, Experimental verification of the Brinkman equation around objects with various shapes in gas–solid stationary and fluidized beds”, Int. J. Multiph. Flow, vol.160, 2023. https://doi.org/10.1016/j.ijmultiphaseflow.2022.104359

J.Xiang, Q.Li, Z.Tan, Y.Zhang, "Characterization Of The Flow In A Gas-Solid Bubbling Fluidized Bed by Pressure Fluctuation", Chemical Engineering Science, vol.174,pp.93–103,2017. https://doi.org/10.1016/j.ces.2017.09.001

G. Zhu, B. Zhang, P. Zhao, C. Duan, Y.Zhao,Z. Zhang, G. Yan, X. Zhu, W. Ding, Z. Rao,”Upgrading low-quality oil shale using high-density gas-solid fluidized bed”, Fuel,Volume 252, pp.666-674, 2019. https://doi.org/10.1016/j.fuel.2019.03.140.

L. Junyu, W. Dan, Q. Jinpeng, D. Chenlong, “On the dynamics of a sinking object in a bubbling gas–solid fluidized bed by a ball-type inertial measurement unit and electrical capacitance tomography. Powder Technology. Vol.411,2022. Doi:10.1016/j.powtec.2022.117908.

C.Zhang, P.Li, C.Lei, W.Qian, F.Wei, "Experimental study of non-uniform bubble growth in deep fluidized beds", Chemical Engineering Science, vol.176, pp.515-523, 2017. https://doi.org/10.1016/j.ces.2017.10.006

M. Jahandar Lashaki, A. A. Sarbanha, S. Movahedirad,”Overall particles flow pattern in a two-zone gas-solid fluidized bed with a secondary-gas stream”,Chemical Engineering Research and Design,Vol.187, pp. 570-583, 2022. https://doi.org/10.1016/j.cherd.2022.09.023.

Y. Mao, L. Dong, Y. Dong, W. Liu, J.Chang, S. Yang, Z. Lv, P.Fan,”Fast co-pyrolysis of biomass and lignite in a micro fluidized bed reactor analyzer”, Bioresource Technology, Volume 181, pp.155-162, 2015. https://doi.org/10.1016/j.biortech.2015.01.066.

E.C.Pleite, F. H.Jiménez, L.M.Gutierrez, A.A. Iborra, "Experimental study on the motion of solids around an isolated bubble rising in a vertically vibrated fluidized bed", Chemical Engineering Journal, vol.330, pp.120–133, 2017. https://doi.org/10.1016/j.cej.2017.07.072

L.Sang, T. Nan, A. Jaberi, J. Zhu, On the basic hydrodynamics of inverse liquid-solid circulating fluidized bed downer, Powder Technology, Volume 365, Pages 74-82,2020.

https://doi.org/10.1016/j.powtec.2019.04.021.

C. Mandviwala, J.Gonzalez-Arias, T. B. Vilches, M. Seemann, H. Thunman, “Comparing bed materials for fluidized bed steam cracking of high-density polyethylene: Olivine, bauxite, silica-sand, and feldspar”, Journal of Analytical and Applied Pyrolysis, Volume 173, 2023,

https://doi.org/10.1016/j.jaap.2023.106049.

P. Skopec, J. Hrdlia, M. Vodia, Dry additive desulfurization in oxyfuel bubbling fluidized bed combustor, Fuel, Volume 283, 2021. https://doi.org/10.1016/j.fuel.2020.118945.

A. Alamri, J. McDonough, V. Zivkovic, Fluidisation behaviour and wall effects of cohesive hydrotalcite powder in a micro-fluidised bed, Powder Technology, Volume 415, 2023.

https://doi.org/10.1016/j.powtec.2022.118192.

Y. Zhang, Process intensification in micro-fluidized bed systems: a review. Chem. Eng. Process. Process Intensif., 164, 2021

S. Geng, Conditioning micro fluidized bed for maximal approach of gas plug flow, Chem. Eng. J., 351, , pp. 110-118, 2018

Y. Guo, Development of a multistage in situ reaction analyzer based on a micro fluidized bed and its suitability for rapid gas–solid reactions, Energy Fuel, 30 (7) , pp. 6021-6033, 2016.

C.R.K. Windows-Yule, S. Gibson, D. Werner, D.J. Parker, T.Z. Kokalova, J.P.K. Seville, Effect of distributor design on particle distribution in a binary fluidised bed, Powder Technology, Volume 367, Pages 1-9, 2020,.

https://doi.org/10.1016/j.powtec.2020.03.034.




DOI: http://dx.doi.org/10.30811/jpl.v21i5.4101

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