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- The 14th International Conference on Fluidization – From Fundamentals to Products (132)
- The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering (131)
- The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering (122)
- 10th International Conference on Circulating Fluidized Beds and Fluidization Technology - CFB-10 (95)
- Fluidization XV (72)
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- BioEnergy IV: Innovations in Biomass Conversion for Heat, Power, Fuels and Chemicals (51)
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- Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes (25)
- 5th International Congress on Green Process Engineering (GPE 2016) (24)
- Biochemical and Molecular Engineering XXI (5)
- Regulatory Sciences for Biologics and Vaccines: Accelerating Development and Enabling Manufacturing Innovation (1)
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Articles 511 - 540 of 834
Full-Text Articles in Chemical Engineering
Electricity Generation Characteristics Of An Anaerobic Fluidized Bed Microbial Fuel Cell, Qingjie Guo, Shuju Zhao, Xuyun Wang, Xuehai Yue, Liangyu Hou
Electricity Generation Characteristics Of An Anaerobic Fluidized Bed Microbial Fuel Cell, Qingjie Guo, Shuju Zhao, Xuyun Wang, Xuehai Yue, Liangyu Hou
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Anaerobic fluidized bed microbial fuel cell (AFBMFC) was developed to investigate the effect of fluidization behaviors on the electrogenesis capacity. Waste water and active carbon were used as liquid and solid phase, respectively. The fuel cell was started up successfully using anaerobic activated sludge as inoculums. The power density is increased with increasing circular liquid velocity up to 450 mW·m-2. High COD remove rate reached 93% after five days operation. Meanwhile, the effects of cathode area on the electrogenesis capacity of AFB MFC were also investigated.
Hydrodynamic Characteristics Of Liquid-Solid Fluidization Of Binary Mixtures In Tapered Beds, Sankarshana Talapuru Dr, J S N Murthy, S Nandana, Phani Kiran S V G R, V Ramesh
Hydrodynamic Characteristics Of Liquid-Solid Fluidization Of Binary Mixtures In Tapered Beds, Sankarshana Talapuru Dr, J S N Murthy, S Nandana, Phani Kiran S V G R, V Ramesh
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The problems associated with fluidization in cylindrical beds like entrainment of particles, limitation of operating velocity could be overcome by adopting tapered beds. There have been no systematic studies reported on fluidization behavior of binary mixtures wherein the effect of size ratio is considered on the hydrodynamic characteristics of liquid-solid fluidization in tapered beds. In the present work, an attempt has been made to study the fluidization behavior and hydrodynamic characteristics of liquid-solid fluidization of binary mixtures of size ratios ranging from 1.2 to 5.13 using sand of different sizes in tapered beds of apex angles 50, 100 and 150. …
Impact Behaviour Of Particles With Liquid Films: Energy Dissipation And Sticking Criteria, Sergiy Antonyuk, Stefan Heinrich, Stefan Palzer
Impact Behaviour Of Particles With Liquid Films: Energy Dissipation And Sticking Criteria, Sergiy Antonyuk, Stefan Heinrich, Stefan Palzer
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The normal impact of spherical particles (elastic glass, elastic-plastic Al2O3) and non-spherical dominantly plastic agglomerates of amorphous maltodextrin on a wall with a liquid layer was studied. The objective was to investigate the effects of thickness (0.1-1 mm) and viscosity of the liquid layer (1-250 mPas) as well as of the impact velocity (1-3.0 m/s) of the granule on the restitution coefficient. The restitution coefficient was measured by using a free-fall apparatus. In the presence of a liquid layer, the higher the viscosity and thickness of the liquid layer the more the energy dissipated during impact and the smaller the …
Spinning Straw Into Gold: Turning Academic Papers Into Commercial Fluidized Bed Reactor Solutions, Charles O. Bolthrunis, Michael Hagan, Waheed A. Mukaddam
Spinning Straw Into Gold: Turning Academic Papers Into Commercial Fluidized Bed Reactor Solutions, Charles O. Bolthrunis, Michael Hagan, Waheed A. Mukaddam
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
This paper presents an example of academic work that has been applied in industry. A case is presented of a solution to a serious operational problem involving fluidization phenomena threatening to cause structural damage to an operating chemical reactor. The process used to analyze the problem and arrive at a probable cause and design solutions are presented.
A Study On Denitrification In A Fluidized Bed Bioreactor, L. Prasanna Lakshmi, Y. Pydi Setty, K. Vimala
A Study On Denitrification In A Fluidized Bed Bioreactor, L. Prasanna Lakshmi, Y. Pydi Setty, K. Vimala
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The work involves experimental investigation on biological denitrification in a fluidized bed reactor under anaerobic conditions using the microorganism Pseudomonas Stutzeri and plastic beads as fluidizing medium. The influence of various parameters like pH, initial nitrate concentration, Carbon/Nitrogen ratio, hydraulic retention time on nitrate-nitrogen removal rate from synthetic effluent prepared at the laboratory were studied in detail. The optimum operating conditions of pH, initial nitrate concentration, Carbon/Nitrogen ratio and flow rate obtained are 7.0–7.5, 15 mg/l, 1.5–2.0 and 4.41 x 10-5 m3/s respectively.
Chemical-Looping Steam Methane Reforming For Hydrogen Production In A Circulating Fluidized Bed Reactor, Sang Done Kim, Kang Seok Go, Young Wook Jeon, Chu Sik Park
Chemical-Looping Steam Methane Reforming For Hydrogen Production In A Circulating Fluidized Bed Reactor, Sang Done Kim, Kang Seok Go, Young Wook Jeon, Chu Sik Park
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Two-step steam methane reforming for hydrogen production using a chemical looping system is proposed to improve the conventional processes. The reaction characteristics with iron oxides as an oxygen carrier was determined in a circulating fluidized bed reactor. From this system, high concentrated hydrogen can be continuously produced without any post treatment.
The Hot Gas Desulfurization In A Compact Two Beds System Integrated With Coal Gasification And Fisher-Tropsch System, Young Cheol Park, Sung-Ho Jo, Seung-Yong Lee, Chang-Keun Yi
The Hot Gas Desulfurization In A Compact Two Beds System Integrated With Coal Gasification And Fisher-Tropsch System, Young Cheol Park, Sung-Ho Jo, Seung-Yong Lee, Chang-Keun Yi
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The hot gas desulfurization (HGD) technique is one of the elemental technologies of syngas purification having both thermal efficiency and very low emissions. The HGD is a novel method to efficiently remove H2S and COS in the syngas with regenerable sorbents at high temperature and high pressure condition. We propose a compact hot gas desulfurization system by which its operability is improved in stabilizing pressure balances among units. The proposed compact two beds system has two bubbling beds, solid injection nozzle, solid conveying line, and riser. The compact desulfurization system was located between coal gasifier and Fisher-Tropsch (F-T) reactor to …
A Novel Construction Of A Low-Pressure-Drop Air Nozzle Working With A 535mwe Cfb Boiler, Pawel Mirek, Wojciech Nowak, Marcin Klajny, Janusz Jabłoński
A Novel Construction Of A Low-Pressure-Drop Air Nozzle Working With A 535mwe Cfb Boiler, Pawel Mirek, Wojciech Nowak, Marcin Klajny, Janusz Jabłoński
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
In the paper a novel construction of a low-pressure drop air-nozzle has been presented. It was designed in order to substitute the arrowhead nozzle working until now with a 535MWe CFB boiler. In comparison to the arrowhead nozzle the new construction has a lower pressure-drop and geometry, which is an effective barrier for backflow of a solid. In the paper numerical simulations as well as experimental studies of a new air nozzle have been presented. Laboratory tests have been conducted on a 3D test-stand equipped with six full scale air nozzles.
Development Of A Continuous Nanoparticle Coating With Electrospraying, N. Ellis, J. Ruud Van Ommen, C.U. Yurteri
Development Of A Continuous Nanoparticle Coating With Electrospraying, N. Ellis, J. Ruud Van Ommen, C.U. Yurteri
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Coating of micron-sized particles (host particles) with nanoparticles can result in modifying the surface properties of host particles leading to various applications. This work presents a novel concept of combining the electrospraying of nanoparticles onto the charged particles entrained out of the fluidized bed for developing a continuous coating process. By controlling the processes to effectively charge and contact particles using electric forces, we are able to fine-tune the properties of the obtained nano-coated particles.
Experimental And Computational Study On The Bubble Behavior In A 3-D Fluidized Bed With A Vertical-Axis, Rotating Distributor, Antonio Acosta Iborra, F. Hernández-Jiménez, C. Sobrino, M. De Vega
Experimental And Computational Study On The Bubble Behavior In A 3-D Fluidized Bed With A Vertical-Axis, Rotating Distributor, Antonio Acosta Iborra, F. Hernández-Jiménez, C. Sobrino, M. De Vega
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
This work presents experimental measurements in a three-dimensional fluidized bed equipped with a novel vertical-axis, rotating distributor, together with two-fluid (Eulerian-Eulerian) CFD simulation results. The influence of the distributor rotation on the behavior of the bubbles in the experiments and in the CFD results is compared and critically analyzed.
Hydrodynamics On Chemical Looping Combustion Using Multiphase Cfd With Kinetic Theory Of Granular Flow, Jonghwun Jung, Isaac K. Gamwo
Hydrodynamics On Chemical Looping Combustion Using Multiphase Cfd With Kinetic Theory Of Granular Flow, Jonghwun Jung, Isaac K. Gamwo
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The fundamental knowledge of multiphase reactive hydrodynamics of the gassolid flow is essential for the design, optimization, and operation of industrial reactors. The multiphase computational fluid dynamics (CFD) model with the kinetic theory of granular flow, MFIX, developed earlier at the National Energy Technology Laboratory have been adapted to describe a fuel reactor of chemical looping combustion (CLC) processes. To understand hydrodynamics the chemical kinetics and mass transfer in the fuel reactor have been developed, where the reduction reaction is the first order of methane gas and the oxygen in metal oxygen carriers transfer to gas phase. The fuel conversion …
A Novel Chemical Looping Combustion Process: Pressure Drop And Solid Circulation Rate Modelling, Ali Hoteit, Yazdanpanah Mohammad-Mahdi, Forret Ann, Delebarre Arnaud, Gauthier Thierry
A Novel Chemical Looping Combustion Process: Pressure Drop And Solid Circulation Rate Modelling, Ali Hoteit, Yazdanpanah Mohammad-Mahdi, Forret Ann, Delebarre Arnaud, Gauthier Thierry
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Experimental results from a cold flow unit of a novel chemical looping combustion configuration are presented in this paper. The system employs a non-mechanical lvalve to control solid flow rate and uses loop-seals to minimize gas leakage. A model was developed to predict solid flow rate and pressure variation in different elements of the system. The developed model was able to well predict solid flow rate within an error range of 10% for a wide solid flux range of 70 – 150 kg/m².s. Sensibility of the solid flow rate was analyzed for different operating parameters by aid of the model. …
Reaction Characteristics Of Two Water Gas Shift Catalysts In A Bubbling Fluidized Bed Reactor For Sewgs Process, Ho-Jung Ryu, Sung-Ho Jo, Young Cheol Park, Chang-Keun Yi
Reaction Characteristics Of Two Water Gas Shift Catalysts In A Bubbling Fluidized Bed Reactor For Sewgs Process, Ho-Jung Ryu, Sung-Ho Jo, Young Cheol Park, Chang-Keun Yi
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Reaction characteristics of two WGS catalysts for SEWGS process were investigated in a bubbling fluidized bed reactor. The commercial low temperature WGS catalyst produced by Süd-chemie and new catalyst produced by spray-drying method were used as bed materials. Reaction temperature, steam/CO ratio, and gas velocity were considered as experimental variables. Moreover, long-term operation results of two WGS catalysts were compared as well.
Decay Factor With Experimental Variables In Two Circulating Fluidized Bed (Cfb) Risers, Donghyun Lee, Hyun Suk Lee, Jong Hun Lim, Sang Soon Park, Ho Jeong Chae, Soon Yong Jeong
Decay Factor With Experimental Variables In Two Circulating Fluidized Bed (Cfb) Risers, Donghyun Lee, Hyun Suk Lee, Jong Hun Lim, Sang Soon Park, Ho Jeong Chae, Soon Yong Jeong
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The effects of the riser inlet velocity, solid mass flux and particle size on the axial solid holdup profile and decay factor were investigated using two circulating fluidized beds (CFBs) with FCC (Geldart A) particles as the bed materials. Based on the experimental results from the two-CFBs, the axial solid holdup in the two CFBs were compared with the correlations of previous studies. Also, an empirical correlation was proposed for decay factor that exhibited a good agreement with experimental data.
Flow Behaviors In A High Solid Flux Circulating Fluidized Bed Composed Of A Riser, A Downer And A Bubbling Fluidized Bed, A. Tsutsumi, Guoqing Guan, Chihiro Fushimi, Masahiro Ikeda, Yu Nakamura, Toshiyuki Suda, Masanori Ishizuka, Hiroyuki Hatano, Satoru Matsuda, Yoshizo Suzuki
Flow Behaviors In A High Solid Flux Circulating Fluidized Bed Composed Of A Riser, A Downer And A Bubbling Fluidized Bed, A. Tsutsumi, Guoqing Guan, Chihiro Fushimi, Masahiro Ikeda, Yu Nakamura, Toshiyuki Suda, Masanori Ishizuka, Hiroyuki Hatano, Satoru Matsuda, Yoshizo Suzuki
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
A circulating fluidized bed coal gasifier cold model which consists of an acrylic riser, a downer, and a bubbling fluidized bed were set up. Flow behaviors were investigated using silica sand with the solid mass flux up to 336 kg/m2•s. The effects of the solid inventory and the seals between the three reaction zones on the solid mass flux were investigated and discussed.
The Effects Of Distributor Design On The Solids Distribution In A Cfb Riser, Jesse Zhu, Jing Xu, Botao Peng, Chao Zhang
The Effects Of Distributor Design On The Solids Distribution In A Cfb Riser, Jesse Zhu, Jing Xu, Botao Peng, Chao Zhang
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The influence of gas distributor design on the gas-solids flow structure was investigated in a rectangular CFB riser. The gas distributor was altered five different ways. The results show that the distributor design had significant effects on the solids distribution. The changed flow structure was maintained from the entrance to the riser top. Altering the gas distributor was an effective and practical method to change the flow structure. This study may be beneficial to CFB design and operation.
Co-Combustion Of Korean Anthracite With Various Fuels In A Commercial Circulating Fluidized Bed Boiler, Jong-Min Lee, Dong-Won Kim, Pyeong-Ki Seon, Jae-Sung Kim
Co-Combustion Of Korean Anthracite With Various Fuels In A Commercial Circulating Fluidized Bed Boiler, Jong-Min Lee, Dong-Won Kim, Pyeong-Ki Seon, Jae-Sung Kim
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The effect of co-combustion of various fuels such as bituminous coal, imported anthracite, RDF and wood pellet with Korean anthracite on the combustion and environmental performance was observed in the commercial CFB boiler. The temperatures in the furnace and cyclones exits decreased with increasing the cocombustion ratio of the bituminous coal, which could achieve more stable operation of the CFB boiler. During Co-combustion of the RDF and wood pellets, the temperature of the furnace exit increased slightly with due to volatiles re-combustion which could restrict to increase the co-combustion ratio of the RDF and wood pellets in the CFB boiler. …
The Influence Of Particle Attrition On Sorbent Inventory And Particle Size Distribution In Air-Blown Circulating Fluidized Bed Combustors, Piero Salatino, Fabio Montagnaro, Fabrizio Scala, Massimo Urciuolo
The Influence Of Particle Attrition On Sorbent Inventory And Particle Size Distribution In Air-Blown Circulating Fluidized Bed Combustors, Piero Salatino, Fabio Montagnaro, Fabrizio Scala, Massimo Urciuolo
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
This paper presents a population balance model aiming at the prediction of sorbent inventory and particle size distribution establishing at steady state in the bed of an air-blown circulating fluidized bed combustor fuelled with a sulphur-bearing solid fuel. The core of the model is represented by population balance equations on sorbent particles which embody terms expressing the extent/rate of sorbent attrition/fragmentation. The effect of the progress of sulphation on attrition and fragmentation is taken into account by selection of appropriate constitutive equations. Model results are presented and discussed with the aim of clarifying the influence of particle attrition/fragmentation on sorbent …
Gas-Solid Fluidization In A Microfluidic Channel, Fei Wang, L S Fan
Gas-Solid Fluidization In A Microfluidic Channel, Fei Wang, L S Fan
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Experimental studies using a high speed digital camera are conducted to examine gas-solid fluidization in microfluidic channels (3mmX3mm and 2mmX3mm). The experimental results indicate the significant channel wall effects on the hydrodynamic properties including bed expansion and regime transition velocities. These properties are analyzed and discussed in the context of correlation equations reported for large fluidized beds.
Characterization Of Turbulent Regime Behavior In The Dilute Zone Of A Circulating Fluidized Bed Riser, Abdelghafour Zaabout, Hervé Bournot, René Occelli, Bousselham Kharbouch
Characterization Of Turbulent Regime Behavior In The Dilute Zone Of A Circulating Fluidized Bed Riser, Abdelghafour Zaabout, Hervé Bournot, René Occelli, Bousselham Kharbouch
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
This study consists in characterizing the solid phase behavior in the dilute region of a circulating fluidized bed riser (CFB) for the turbulent regime (i.e. for superficial gas velocities Uc
Effect Of Distributor Design On Solids Circulation And Gas Bypass In An Internal Circulating Fluidized Bed Reactor, Xiaotao T. Bi, Terris T. Yang
Effect Of Distributor Design On Solids Circulation And Gas Bypass In An Internal Circulating Fluidized Bed Reactor, Xiaotao T. Bi, Terris T. Yang
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The effect of the distributor design on the gas bypass and solids circulation was investigated for the flat, cylindrical and conical gas distributors in a cold model internal circulating fluidized bed to provide design and operating criteria for the future application of ICFB deNOx reactor. A high gas bypass ratio from the annulus to draft tube and low from the draft tube to annulus were identified for all tested distributors. The solids circulation rates increased with the increase of both annulus and draft tube gas velocities, where the conical distributor exhibited a more flexible and stable operation. The particle size …
Aeration And Mixing Behaviours Of Binary Mixtures Of Nano-Sized Powders Under Sound Vibration, Paola Ammendola, R. Chirone
Aeration And Mixing Behaviours Of Binary Mixtures Of Nano-Sized Powders Under Sound Vibration, Paola Ammendola, R. Chirone
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The aeration behaviour of three different nano-sized powders, Al2O3, Fe2O3 and CuO, fluidized under the application of acoustic fields of different intensities (125-150 dB) and frequencies (50-300 Hz) has been characterized. The characterization of the fluidization of binary mixtures of Al2O3 and Fe2O3 has been also investigated under the application of acoustic fields of 120 Hz and of two different intensities, 130 and 135 dB, and varying the relative amount of two powders from 17 to 50 %wt of Fe2O3. The addition of Fe2O3 has a beneficial effect on fluidization quality of Al2O3 even for the lowest amount of Fe2O3. …
The Solids Flow In The Riser Of A Cfb Viewed By Positron Emission Particle Tracking (Pept), Chian Chan, Jonathan P.K. Seville, Jan Baeyens
The Solids Flow In The Riser Of A Cfb Viewed By Positron Emission Particle Tracking (Pept), Chian Chan, Jonathan P.K. Seville, Jan Baeyens
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The PEPT study of the riser of a CFB determines (i) the acceleration length and time, (ii) the upwards and downwards velocities; (ii) the population densities; (iii) the flow pattern at the riser bottom; and (iv) the existence of different flow regimes for associated operating conditions of gas flow rate (U) and solids circulation flux (G).
Design Of New Fluidized Bed Reactors For Cvd - Processes, T. Strer, M. Schober, K.-E. Wirth
Design Of New Fluidized Bed Reactors For Cvd - Processes, T. Strer, M. Schober, K.-E. Wirth
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
A new concept of fluidized bed will be shown which can be used for various gas-tosolids reactions (e.g. chemical vapour deposition (CVD) reactions) with high throughput like the production of new materials. For the design and scale-up of the new bubbling fluidized bed with vertically aligned vertical nozzles the fluid dynamics of the fluidized beds have to be determined and analysed, especially the flow around the gas nozzles. A jet region around a single centrally arranged injector lance in a bubbling fluidized bed reactor is characterized by different parameters like solids concentration and jet gas distribution. It can be shown …
Experiments And Modelling Of Micro-Jet Assisted Fluidization Of Nanoparticles, J. Ruud Van Ommen, David M. King, Alan Weimer, Robert Pfeffer, Berend Van Wachem
Experiments And Modelling Of Micro-Jet Assisted Fluidization Of Nanoparticles, J. Ruud Van Ommen, David M. King, Alan Weimer, Robert Pfeffer, Berend Van Wachem
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
The fluidization of nanoparticle agglomerates can be largely improved by using downward pointing micronozzles, creating a high-velocity jet, as experimentally shown. By discrete particle simulations – treating the agglomerates as single particles – we show that the main reason is probably the reduction of the agglomerate size by agglomerate-agglomerate collisions.
Plasma-Enhanced Chemical Vapour Deposition On Particles In An Atmospheric Circulating Fluidized Bed, J. Ruud Van Ommen, Elena Abadjieva, Yves L.M. Creyghton
Plasma-Enhanced Chemical Vapour Deposition On Particles In An Atmospheric Circulating Fluidized Bed, J. Ruud Van Ommen, Elena Abadjieva, Yves L.M. Creyghton
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Plasma-enhanced chemical vapour deposition is an attractive technqiue to provide particles with a thin film. Applying a cold plasma enables us to work with temperature-sensitive materials. Using a CFB with an incorporated volume dielectric barrier discharge reactor we coated 20-30 m CuO particles with a thin SiOx layer.
Challenges With The Coupling Of Fluidized Beds For Chemical Looping Combustion, Marvin Kramp, Andreas Thon, Ernst-Ulrich Hartge, Stefan Heinrich, Joachim Werther
Challenges With The Coupling Of Fluidized Beds For Chemical Looping Combustion, Marvin Kramp, Andreas Thon, Ernst-Ulrich Hartge, Stefan Heinrich, Joachim Werther
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
In the present work the system of interconnected fluidized bed reactors of a Chemical Looping Combustion (CLC) process is simulated in pilot plant scale and 100 MWth scale. Attrition models, derived from small scale laboratory experiments, are employed to predict the behavior of a large scale CLC process in terms of attrition and oxygen carrier (OC) losses. Realistic circulation mass flows of OC are calculated and the sources of the losses are further investigated. Different arrangements of cyclones are evaluated for their potential to improve the solids recovery. For example the introduction of a second-stage cyclone separation for the air …
Co-Gasification Of Coal And Wood In A Dual Fluidized Bed Gasifier Variation Of Fluidization Conditions And Load Ratio, Christoph Pfeifer, Isabella Aigner, Hermann Hofbauer
Co-Gasification Of Coal And Wood In A Dual Fluidized Bed Gasifier Variation Of Fluidization Conditions And Load Ratio, Christoph Pfeifer, Isabella Aigner, Hermann Hofbauer
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
Within this work the use of coal has been tested in a dual fluidized bed 100 kW - steam blown- gasifier originally designed for wood. With adjustments like fluidization conditions and fuel load, it is possible to gasify coal in load-ratios from 0 % to 100 % with this technology.
A Model On An Entrained Bed-Bubbling Bed Process For Co2 Capture From Flue Gas, Jeong-Hoo Choi, Chang-Keun Yi, Sung-Ho Jo
A Model On An Entrained Bed-Bubbling Bed Process For Co2 Capture From Flue Gas, Jeong-Hoo Choi, Chang-Keun Yi, Sung-Ho Jo
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
A simplified model has been developed to investigate effects of important operating parameters on performance of an entrained-bed absorber and bubbling-bed regenerator system collecting CO2 from flue gas. The particle population balance was considered together with chemical reaction to determine the extent of conversion in both absorber and regenerator. Effects of several absorber parameters was tested in a laboratory scale process. The CO2 capture efficiency decreased as temperature or gas velocity increased. However, it increased with static bed height or moisture concentration. The CO2 capture efficiency was exponentially proportional to each parameter. Based on the absolute value of exponent of …
Characteristics And Kinetics Of Biomass Pylolysis In A Micro Fluidized Bed Reactor, Guangwen Xu, Shiqiu Gao, Jian Yu, Qiang Li, Jianhong Zhu, Zhengkang Duan
Characteristics And Kinetics Of Biomass Pylolysis In A Micro Fluidized Bed Reactor, Guangwen Xu, Shiqiu Gao, Jian Yu, Qiang Li, Jianhong Zhu, Zhengkang Duan
The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering
A Micro Fluidized Bed Reactor (MFBR) was developed to enable on-line pulse feeding and isothermal differential reaction of particle reactant. Application of the MFBR to biomass pyrolysis demonstrated that the resulting globe kinetics parameters were 11.77 kJ/mol and 1.45 s-1 on the gas release characteristics, respectively.