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Wu Z, Yang D, Bian Q, Liu B, Zhang C, Zhang J, Wang J. ECVT study of 3D flow characteristics at L-shaped exit of CFB riser. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Investigation of particle flow characteristics in a CFB recirculation system using electrical capacitance volume tomography. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Tu Q, Wang H, Ocone R. Application of three-dimensional full-loop CFD simulation in circulating fluidized bed combustion reactors – A review. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Huang YS, Medina-González S, Straiton B, Keller J, Marashdeh Q, Gonzalez M, Nagy Z, Reklaitis GV. Real-Time Monitoring of Powder Mass Flowrates for Plant-Wide Control of a Continuous Direct Compaction Tablet Manufacturing Process. J Pharm Sci 2022; 111:69-81. [PMID: 34126119 PMCID: PMC10009918 DOI: 10.1016/j.xphs.2021.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/02/2021] [Accepted: 06/02/2021] [Indexed: 11/28/2022]
Abstract
While measurement and monitoring of powder/particulate mass flow rate are not essential to the execution of traditional batch pharmaceutical tablet manufacturing, in continuous operation, it is an important additional critical process parameter. It has a key role both in establishing that the process is in a state of control, and as a controlled variable in process control system design. In current continuous tableting line operations, the pharmaceutical community relies on loss-in-weight feeders to monitor and understand upstream powder flow dynamics. However, due to the absence of established sensing technologies for measuring particulate flow rates, the downstream flow of the feeders is monitored and controlled using various indirect strategies. For example, the hopper level of the tablet press is maintained as a controlled process output by adjusting the turret speed of the tablet press, which indirectly controlling the flow rate. This gap in monitoring and control of the critical process flow motivates our investigation of a novel PAT tool, a capacitance-based sensor (ECVT), and its effective integration into the plant-wide control of a direct compaction process. First, the results of stand-alone experimental studies are reported, which confirm that the ECVT sensor can provide real-time measurements of mass flow rate with measurement error within -1.8 ~ 3.3% and with RMSE of 0.1 kg/h over the range of flow rates from 2 to 10 kg/h. The key caveat is that the powder flowability has to be good enough to avoid powder fouling on the transfer line walls. Next, simulation case studies are carried out using a dynamic flowsheet model of a continuous direct compression line implemented in Matlab/Simulink to demonstrate the potential structural and performance advantages in plant-wide process control enabled by mass flow sensing. Finally, experimental studies are performed on a direct compaction pilot plant in which the ECVT sensor is located at the exit of the blender, to confirm that the powder flow can be monitored instantaneously and controlled effectively at the specified setpoint within a plant-wide feedback controller system.
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Affiliation(s)
- Yan-Shu Huang
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, United States.
| | - Sergio Medina-González
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, United States
| | | | | | | | - Marcial Gonzalez
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, United States
| | - Zoltan Nagy
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, United States
| | - Gintaras V Reklaitis
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, United States
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5
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Wang H, Yang W. Application of electrical capacitance tomography in pharmaceutical fluidised beds – A review. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116236] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Kuang S, Li K, Shrestha S, Yu A. Discrete particle simulation of heterogeneous gas-solid flows in riser and downer reactors. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.07.080] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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CFD modeling a fluidized bed large scale reactor with various internal elements near the heated particles feeder. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.08.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Investigation of core-annular flow in an industrial scale circulating fluidized bed riser with electrical capacitance volume tomography (ECVT). POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.12.094] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Wang D, Xu M, Marashdeh Q, Straiton B, Tong A, Fan LS. Electrical Capacitance Volume Tomography for Characterization of Gas–Solid Slugging Fluidization with Geldart Group D Particles under High Temperatures. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04733] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dawei Wang
- William
G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Mingyuan Xu
- William
G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | | | | | - Andrew Tong
- William
G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Liang-Shih Fan
- William
G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
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Wang A, Marashdeh Q, Fan LS. ECVT imaging and model analysis of the liquid distribution inside a horizontally installed passive cyclonic gas–liquid separator. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2015.11.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Effects of the riser exit geometries on the hydrodynamics and solids back-mixing in CFB risers: 3D simulation using CPFD approach. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.06.049] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Wang A, Marashdeh Q, Fan LS. ECVT imaging of 3D spiral bubble plume structures in gas-liquid bubble columns. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22070] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aining Wang
- William G. Lowrie Department of Chemical and Biomolecular Engineering; Ohio State University; Columbus OH 43210 USA
| | - Qussai Marashdeh
- William G. Lowrie Department of Chemical and Biomolecular Engineering; Ohio State University; Columbus OH 43210 USA
| | - Liang-Shih Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering; Ohio State University; Columbus OH 43210 USA
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13
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Zhang W, Wang C, Yang W, Wang CH. Application of electrical capacitance tomography in particulate process measurement – A review. ADV POWDER TECHNOL 2014. [DOI: 10.1016/j.apt.2013.12.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Hussain A, Ahmed I, Sait HH, Bassyouni MI, Hegab AM, ul Hasan SW, Nasir Ani F. Experimental and Simulation Study of Fluidization Behavior of Palm Biomass in a Circulating Fluidized Bed Riser. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401856b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ahmad Hussain
- Department
of Nuclear Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Iqbal Ahmed
- Chemical
Engineering Department, Universiti Teknologi Petronas, Bandar Seri
Iskandar, 31750 Tronoh, Perak, Malaysia
| | - Hani Hussain Sait
- Department
of Mechanical Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia
| | - Mohamed Ismail Bassyouni
- Department
of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911 Saudi Arabia
- Department
of Chemical Engineering, Higher Technological Institute, Tenth of Ramdan City, Egypt
| | - Abdelkarim Morsy Hegab
- Department
of Mechanical Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia
| | - Syed Waheed ul Hasan
- Department
of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911 Saudi Arabia
| | - Farid Nasir Ani
- Faculty of
Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor, Malaysia
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15
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CFD Study of Industrial FCC Risers: The Effect of Outlet Configurations on Hydrodynamics and Reactions. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2012. [DOI: 10.1155/2012/193639] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fluid catalytic cracking (FCC) riser reactors have complex hydrodynamics, which depend not only on operating conditions, feedstock quality, and catalyst particles characteristics, but also on the geometric configurations of the reactor. This paper presents a numerical study of the influence of different riser outlet designs on the dynamic of the flow and reactor efficiency. A three-dimensional, three-phase flow model and a four-lump kinetic scheme were used to predict the performance of the reactor. The phenomenon of vaporization of the liquid oil droplets was also analyzed. Results showed that small changes in the outlet configuration had a significant effect on the flow patterns and consequently, on the reaction yields.
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