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Tribedi T, Pillajetti P, Kumari R, Pant HJ, Tiwari P, Upadhyay RK. Measurements of Solid Velocity in a Pilot-Scale Geldart’s Group B Circulating Fluidized Bed Using a Radioactive Particle Tracking Technique. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Trilokpati Tribedi
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Premsagar Pillajetti
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Roushni Kumari
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Harish Jagat Pant
- Isotope and Radiation Application Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Pankaj Tiwari
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Rajesh Kumar Upadhyay
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India
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Gu J, Liu Q, Zhong W, Yu A. Study on scale-up characteristics of oxy-fuel combustion in circulating fluidized bed boiler by 3D CFD simulation. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Prediction of In-Situ Gasification Chemical Looping Combustion Effects of Operating Conditions. Catalysts 2018. [DOI: 10.3390/catal8110526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Chemical Looping Combustion (CLC) has been considered as one of the most promising technologies to implement CO2 capture with low energy penalty. A comprehensive three-dimensional numerical model integrating gas–solid flow and reactions, based on the authors’ previous work (Energy Fuels 2013, 27, 2173–2184), is applied to simulate the in-situ Gasification Chemical Looping Combustion (iG-CLC) process in a circulating fluidized bed (CFB) riser fuel reactor. Extending from the previous work, the present study further validates the model and investigates the effects of several important operating conditions, i.e., solids flux, steam flow and operating pressure, on the gas–solid flow behaviors, CO2 concentration and fuel conversion, comprehensively. The simulated fuel reactor has a height of 5 m and an internal diameter of 60 mm. The simulated oxygen carrier is a Norwegian ilmenite and the simulated fuel is a Colombian bituminous coal. The results of this simulation work have shown that an increase in the solids flux can promote CO2 concentration, but may also have a negative effect on carbon conversion. A decrease in the steam flow leads to positive effects on not only the CO2 concentration but also the carbon conversion. However, the reduction of steam flow is limited by the CFB operation process. An increase in the operating pressure can improve both the CO2 concentration and carbon conversion and therefore, the CFB riser fuel reactor of a practical iG-CLC system is recommended to be designed and operated under a certain pressurized conditions.
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Gu J, Zhong W, Shao Y, Liu X. Particle-Motion Behaviors in a Dual Circulating Fluidized Bed by a Multiphase Particle-in-Cell Method. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03828] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinrao Gu
- Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
| | - Wenqi Zhong
- Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
| | - Yingjuan Shao
- Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
| | - Xuejiao Liu
- Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
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The influence of pressure and temperature on gas-solid hydrodynamics for Geldart B particles in a high-density CFB riser. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.12.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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A correlation for predicting solids holdup in the dilute pneumatic conveying flow regime of circulating and interconnected fluidised beds. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.04.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang MC, Zhang C. Further integration of the type-A-choking-oriented unified model for fast fluidization dynamics. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abdelghani EA, Barakat NA, Sayed ET. Effect of humidification conditions and adding 3μm-size superfine powders on circulation rates of binary Geldart A–C mixtures in a semi-batch circulating fluidized bed. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.01.081] [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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Abdelghany EAM, Abdelkareem MA, Mahmoud IH. Behavior of Ultrafine versus Superfine Powders in a Binary-Mixture Semi-Batch Circulating Fluidized Bed. Chem Eng Technol 2014. [DOI: 10.1002/ceat.201300366] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Zhang J, Feng Z, Jia X, Xu S, Li W, Du M. Characteristics of a Pressurized Gas-Solid Magnetically Fluidized Bed. Chem Eng Technol 2013. [DOI: 10.1002/ceat.201200491] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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