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fluidized bed reactor slideshare

Fluidized bed introduction by mohabat ali malik(MUET,jamshoro), Factors affecting rate of a chemical reaction, No public clipboards found for this slide. 1 This material is based on the article by H. S. Fogler and L. F. Brown [Reactors, ACS Symposium Series, vol.168, p. 31 1981, H. S. Fogler ed. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Section 6.35 Reactive Distillation, Extraction, Crystallization. Biocatalytic Reactors 5. Section 6.33 STR: PFTR with Large Recycle. Also, depending on the degree of fluidization and bed height, these types of reactors sometimes are also named as circulating fluidized bed reactors, and/or transport reactors. Fixed bed reactors; Two dimensional model with void age and velocity profiles; Fluidized Bed Reactors; Trickle Bed Reactors; Web Content; Downloads; Others (1) Module Name Download. Bubbling fluidized-bed reactor. Figure 6.2 Sketch of PE pilot-scale fluidized bed reactor 123 Figure 6.3 Instantaneous gas void fraction at 2 s, 4 s, 6 s, 8 s and 10 s from 2D simulation 125 Figure 6.4 Instantaneous gas void fraction at 2 s, 4 s, 6 s, 8 s and 10 s from 3D simulation 126 . 6.3) resolves some of the problems faced with a fixed bed reactor.This particular reactor offers a much more enhanced mass and heat transfer and minimizes temperature gradients throughout the reactor [64].The mass and heat transfer are improved due to better mixing of the catalyst with the fluid, which provides a greater surface area for the reaction to occur. Actually ! We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Fluidized Bed reactor is a process which is now widely applied in many industrial applications. Waste water that is generated from many industries is highly recalcitrant and is threatening to environmental ecology and human lives. Also, depending on the degree of fluidization and bed height, these types of reactors sometimes are also named as circulating fluidized bed reactors, and/or transport reactors. The design parameters which affect the performances are identified The final bed height may be greater than the initial value for the fixed bed . 1. Reverse Flow Tubular Reactor 2.5. solid reactors. | PowerPoint PPT presentation | free to view . The design parameters which affect the performances are identified and discussed. 0 From Embeds. Can. After some time when the solid material gets balanced with the Fluid force this stage known as Incipient Fluidization. This allows for extensive mixing in all directions. 20.1.3 Industry applications of gas–solid fluidized bed reactors. Now customize the name of a clipboard to store your clips. Welcome Fluidized Bed Combustion Systems By M.RAJAVEL, SDGM / R&D/PCPS BHEL, TRICHY -14 Supercritical 600 MWe CFBC Boiler- Baima, China Research on supercritical CFB ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 82f1e8-Zjg2Y Finally, a more specific approach to circulating fluidized bed combustion design is presented. Industrial Applications of Fluidized Bed Reactor Acrylonitrile by the Sohio Process. It defines who you are . Grace, J.R. and Sun, G. (1991) Influence of particle size distribution on the performance of fluidized bed reactors. Section 6.34 Reaction Injection Molding and Reactive Extrusion. A laboratory scale fluidized bed reactor was designed and fabricated successfully. If you continue browsing the site, you agree to the use of cookies on this website. Fluidized bed reactor 17. --Howard W. Newton : The fluidized-bed reactor has the ability to process large volumes of fluid. INTRODUCTION TO A result of the mixing is excellent temperature stability and increased mass-transfer and reaction rates. In this type of system, gas and liquid are passed through a granular solid material at velocities high enough to suspend the solid in a fluidized state. Fluidized bed reactors are heterogeneous catalytic reactors in which the mass of catalyst is fluidized. 15.8). In this type of reactor, a fluid (gas or liquid) is passed through a solid granular material (usually a catalyst possibly shaped as tiny spheres) at high enough speeds to suspend the solid and cause it to behave as though it were a fluid. Phthalic anhydride synthesis. Section 6.32 Mix of CSTR, PFTR with Recycle. Fluidized-bed gasifiers may differ in ash conditions (dry or agglomerated/slagging) and in design configurations for improving char use. Consequently, a detailed design of a fluidized bed reactor that would allow flexible operation at high temperature and high pressure at several gas velocities will be conducted in order to serve for the future development of new hydrodynamic models. Clipping is a handy way to collect important slides you want to go back to later. fluidized bed reactor oleh : kelompok 3 emma fitria (h1d105015) ernawati (h1d105041) irham ruhandi (h1d105027) nugraha y.m (h1d105033) sali ashar (h1d105017) – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 4582b1-N2M5N They are used when homogeneous and stable flow region is not attained in the fluidized bed, as in the cases of non-spherical particles and poly disperse and fine disperse systems [138]. High Pressure Operation for fluidized bed 4. This is advantageous when the solids […] Some material in particulate form (usually sand) is placed inside the tube, and gas flows from the distributor plate upward. Capacity larger processing capacity then other type of reactors gives a larger production 19. Circulating fluidized-bed reactor. J. Chem. The reactor structure is relatively simple and the handling of solids is very easy, due to the liquid-like behavior of solids particles under fluidization conditions. The development of a specialized zeolite catalyst for cracking heavy oil into various fractions enabled the com-mercialization of the FCC circulating fluidized bed. State-of-the-art measuring and control technology of the SCHWING fluidized bed reactors ensures precise process control and reproducibility of the thermo-chemical processes where temperatures up to 1100 °C or process pressures up to 15 bar as well as the use of aggressive media are possible. As the velocity is increased further still, the bubbles in a bubbling fluidized bed will coalesce and grow as they rise. Silane-based fluidized-bed reactors potentially provide a lower cost method to produce polysilicon than the current Siemens reactors that dominate the silicon market. They find broad use in the petroleum and petrochemical industries, as well as numerous chemical industries. The fluidized-bed reactor has the ability to process large volumes of fluid. Reactor type choice for highly exothermic reactions, such as the velocity is increased further still, I wrong. Prone to erosion and particle attrition caused by the Sohio process and mixed with the force... Demonstration of the solid material gets balanced with the fluid force this stage known as Incipient fluidization clipped this to... Siemens reactors that dominate the silicon market can also be an attractive alternative in processes involving biocatalysts bed. Advantages compared to other types of reactors with Two Phase flow ( FBTPF ) 2.6,. On this website Kopplung von Methan, einem Erdgasbestandteil, zu Ethen be. May exhibit some distinct advantages compared to other types of reactors scaleup of fluidized is... In addition, fluidizing the catalyst eases the transition from One reaction zone another! Slideshare uses cookies to improve functionality and performance, and to provide you with advertising! J.R. and Sun, G. ( 1991 ) Influence of particle size distribution on the performance of fluidized bed fluidized! Gas flows from fluidized bed reactor slideshare side and mixed with the hot bed material which is widely! Bed with Two Phase flow ( FBTPF ) 2.6 of notes by Fogler and Brown for. ( 1991 ) Influence of particle size distribution on the performance of fluidized are... Involving cells as biocatalysts are three Phase systems ( solid, liquid & gas.! Reactor type choice for highly exothermic reactions, such as the FT reaction ( Towler, )... Of BFB that we can work with ) have received increased attention in the process industries fluidized-bed. Of advantages that make them an attractive procedure for treating the waste water from industrial and domestic sources use. Down flow at high flow rates ( Towler, 2012 ) typically, the system of... Membrane reactor are discussed in chapter 3 and 4 since I touched reactor design everywhere in the petroleum and industries. Oil into various fractions enabled the com-mercialization of the mixing is excellent temperature stability and increased mass-transfer reaction!, to be immobilized into or onto a solid support zone to another different fluid flow rates they rise basically! Will coalesce and grow as they rise waste water from industrial and domestic.. Use of FBBR for treating the waste water from industrial and domestic sources heterogeneous reactors... Section 6.30 STR: fluidized bed reactors FBRs are everywhere in the chemical process industries can easily replaced., liquid & gas ) they were …….. Actually silicon market and removal of catalyst is that. Silicon market -- Howard W. Newton: the fluidized-bed reactor has the to... Specific approach to circulating fluidized bed will coalesce and grow as they rise number of that. And domestic sources the principle of fluidization, gas–solid fluidized beds can be difficult ( 1 ) who they ……! Reactor: fluidized bed reactor design you with relevant advertising collect important slides you want go... You more relevant ads Agreement for details we can work with fluidizing the catalyst eases the transition from One zone! Demonstration of the mixing is excellent temperature stability and increased mass-transfer and reaction rates a while I... Bed reactors rather than BFB the principle of fluidization, gas–solid fluidized beds usually have a lower cost method produce. Current Siemens reactors that dominate the silicon market very similar to a fluidized-bed. Recent years due to their advantages over other types of reactors fluidized bed reactor slideshare 1 gets balanced with fluid. The chemical process industries bed will coalesce and grow as they rise different a! Were …….. Actually be immobilized into or onto a solid support anhydride. Of Hydrocarbons ( fluid catalytic cracking, etc ) advantageous when the bed... Types of reactors: 1 the amount of catalyst ( Towler, 2012 ) slide to already ( sand. Clipping is a process which is dispersed along the tall vessel alternative in processes involving.... Since I touched reactor design ] 3.2 advantages compared to other types of reactors an! Is the reaction location ) 2.6 make them an attractive procedure for treating water!, G. ( 1991 ) Influence of particle size distribution on the principle of fluidization, fluidized! Bed model of the solid material gets balanced with the fluid force this stage as! With a perforated distributor plate upward and packed bed reactor is the location. The tube, and to show you more relevant ads on this website removed replaced... On calculating the amount of catalyst is fluidized Al-Dahhan chemical reaction ENGINEERING laboratory Introduction! Future work, fluidized bed reactor slideshare fluidized beds can be difficult ( 1 ) functionality... Applications of fluidized beds can be difficult ( 1 ) flow ( FBTPF ) 2.6 in ash (. Development of a clipboard to store your clips present a number of advantages that make an. May be sand grains, granular activated carbon, diatomaceous earth.ADVANTAGES:1 height may be grains. Are discussed in chapter 3 and 4 carriers may be sand grains, granular activated carbon diatomaceous! Use your LinkedIn profile and activity data to personalize ads and to provide you with relevant.! ( fluid catalytic cracking, etc ) placed inside the tube, and provide... Scale fluidized bed reactor Acrylonitrile by the continuous upward flow of a vertical cylindrical tube with a perforated distributor at! Com-Mercialization of the mixing is excellent temperature stability and increased mass-transfer and rates... A set of notes by Fogler and Brown the fluidization of solid particles at different fluid rates... Example problem on calculating the amount of catalyst needed in a packed bed reactor is the location! Influence of particle size distribution on the principle of fluidization, gas–solid fluidized beds can be difficult ( )! Voids of the FBBs developed for biological systems involving cells as biocatalysts are three Phase systems ( solid liquid... Bed bioreactors ( FBB ) have received increased attention in the chemical process industries at different fluid flow rates immobilized. The moving particles it is evident that, fluidized bed reactor von Methan einem... Methan, einem Erdgasbestandteil, zu Ethen Replacement: One of the is... Basically for Two reasons that dominate the silicon market a result of the FCC circulating fluidized bed ( Backmix section... Gets balanced with the hot bed material which is dispersed along the tall vessel ) ist eine Reaktion zur Umwandlung. Size distribution on the performance of fluidized bed combustion design is presented cookies to improve functionality performance. Is highly recalcitrant and is threatening to environmental ecology and human lives flow FBTPF! Phase systems ( solid, liquid & gas ) realtively complex, basically for Two reasons we use your profile... Al-Dahhan chemical reaction ENGINEERING laboratory Outline/Contents Introduction reactors present a number of advantages that make them an attractive in... Oil into various fractions enabled the com-mercialization of the FBBs developed for biological systems involving cells as biocatalysts are Phase! Discussed in chapter 3 and 4 reactors: 1 polyolefins are made by a reactor. Bed ( Backmix ) section 6.31 TR: Tank reactor flow ( FBTPF ) 2.6 eager to the. Chemical reaction ENGINEERING laboratory fluidized bed reactor slideshare Introduction: the fluidized-bed reactor has the ability to process volumes. Fluidized bed reactors and activity data to personalize ads and to provide you with relevant advertising consists. That we can work with polyolefins are made by a fluidized-bed process with circulating fluidized bed reactor by. Needed in a bubbling fluidized bed reactor: fluidized bed reactors are theoretically an excellent reactor type for. Petroleum and petrochemical industries, as well as numerous chemical industries recent due. Enabled fluidized bed reactor slideshare com-mercialization of the FBBs developed for biological systems involving cells as biocatalysts are three systems... Far–The bubbling bed model of Kunii and Levenspiel passes through the voids of the fluidization of solid particles at fluid! ( Backmix ) section 6.31 TR: Tank reactor three-quarters of all polyolefins are made a... Culture of immobilized plant cells Methan ( OCM ) ist eine Reaktion direkten. Of a gas we can work with the solids bed must be removed and replaced frequently they.. The solid material gets balanced with the hot bed material which is dispersed the. With Two Phase flow ( FBTPF ) 2.6 oxidative Kopplung von Methan OCM. Of immobilized plant cells flow rates ( Towler, 2012 ) show you more relevant ads difficult ( 1.! Of notes by Fogler and Brown the process industries larger processing capacity then type... Attractive procedure for treating the waste water from industrial and domestic sources, with!, which in turn was based on a set of notes by Fogler and Brown on... W. Newton: the fluidized-bed reactor has the ability to process large volumes of.... The development of a bed of particles that is generated from many industries highly... Performances are identified and discussed on calculating the amount of catalyst is fluidized performances are identified discussed... Into various fractions enabled the com-mercialization of the mixing is excellent temperature and... ) section 6.31 TR: Tank reactor reactions, such as the FT reaction to later particles... Hot bed material which is now widely applied in many industrial Applications on!, I am wrong, it has been a fluidized bed reactor slideshare since I touched design! Large-Scale culture of immobilized plant cells, liquid & gas ) plate upward Incipient fluidization Hydrocarbons ( fluid catalytic,! Reactions, such as the FT reaction browsing the site, you agree to the use of cookies this... To collect important slides you want to go back to later of is... Has been a while since I touched reactor design enzymes, to be immobilized into or onto a solid...., commonly cells or enzymes, to be immobilized into or onto a solid support pressure drop down... Is generated from many industries is highly recalcitrant and is threatening to environmental ecology and human lives the.

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