characteristics of a fluidized bed catalytic reactor

Catalytic Reactors A ReviewKnow More

Section 4 summarize the modeling aspects of fluidized bed catalytic reactors and biocatalytic reactors respectively Section 5 highlights the developments in unconventional reactors 2 Fixed Bed Reactor characteristics of the reactor On the microscopic level within the particle intraparticle...

Ebullated bed reactorKnow More

Ebullated bed reactors are a type of fluidized bed reactor that utilizes ebullition or bubbling to achieve appropriate distribution of reactants and catalystsThe ebullated-bed technology utilizes a three-phase reactor liquid vapor and catalyst and is most applicable for exothermic reactions and for feedstocks which are difficult to process in fixed-bed or plug flow reactors due to high...

Elements of Chemical Reaction EngineeringKnow More

The fluidized-bed reactor has the ability to process large volumes of flu For the catalytic cracking of petroleum naphthas to form gasoline blends as an example the virtues of the fluidized-bed reactor drove its competitors from the market It appears in many of the equations describing fluidized-bed characteristics...

ADVANCES IN MODELING OF FLUIDIZEDKnow More

A number of fluidized-bed catalytic reactor models have been proposed during the past half-century based on conservation equations as well as empirical relations This article presents a comprehensive review of these models ranging from the classic and pioneering reactor models found in the literature to the current state-of-the-art...

Modelling of Fluidized Bed Reactors InternationalKnow More

The fluidized bed reactor has a lot of advantages excellent gas-solid contacting no hot spots even with highly exothermal reactions good gas-to-particle and bed-to-wall heat transfer and the ease of solids handling which is particularly important if the catalyst is quickly ageing...

Combustion Characteristics of Hydrogen in a CatalyticKnow More

Combustion Characteristics of Hydrogen in a Catalytic Fluidized Bed Tomotaka OSAKABE 1 we have focused on a catalytic fluidized bed reactor with a heat exchanger which can control the bed temperature and have investigated the catalytic combustion reaction of hydrogen with platinum particles in the fluidized bed reactor As our...

Packed Bed Reactors PBRsKnow More

Characteristics Fluidized Bed Reactor Heterogeneous reactions like a CSTR in that the reactants are well mixed Kinds of Phases Present Usage Advantages Disadvantages 1 Gas-sol 2 Gas-solid...

Polypropylene Production Optimization in Fluidized BedKnow More

Detailed experimental set up of a pilot scale fluidized bed catalytic reactor 3D 22 Pilot Plant Instrumentation Temperatures in the reactor were measured at six different vertical positions starting at 16 cm above the distributor plate A temperature controller was used to control the temperature of the...

Fluidized Bed ReactorsKnow More

Fluidized Bed Reactors Fluidized bed reactors are used extensively in the chemical process indus-tri The distinguishing feature of a fluidized bed reactor is that the solids bed of catalytic particles is supported by an upward flow of gas This reactor provides easy loading and removing of catalyst This is advantageous when the solids bed...

Fluidized Bed ReactorsKnow More

Applications of fluidized bed reactors include but are not limited to Fisher-Tropsch synthesis catalytic cracking of hydrocarbons and related high molecular weight petroleum fractions Gasification in a fluidized bed can be utilized to convert coal biomass and other waste materials into synthesis gas...

Circulating fluidized bed reactor design and operationKnow More

Keywords Circulating fluidized bed reactor reactor hydrodynamics transfer process 1 Introduction The earliest fluidized bed reactors used for the catalytic cracking of hydrocarbons dating from the early 1940 s operated at high superficial gas velocities now associated with the regime of fast fluidization...

Fluidized Bed Reactors SpringerLinkKnow More

Kuipers JAM Hoomans BPB van Swaaij WPM 1968 Hydrodynamic Models of Gas-Fluidized Beds and Their Role for Design and Operation of Fluidized Bed Chemical Reactors In Fan L-S Knowlton TM eds Proc of the Ninth Engineering Foundation Conference on Fluidization Engineering Foundation New York ISBN/ISSN 0-939204-56-8 Google Scholar...

PDF DESIGN AND FABRICATION OF FLUIDIZEDKnow More

10 Introduction In fluidized bed reactor the solids or catalytic particles are supported by an up flow of fluidizing flu This reactor Fluidized bed reactors have been significantly utilized in provides easy loading and removing of catalysts Internet chemical processes in which parameters such...

FBR HistoryKnow More

In 1938 Exxon Research joined a consortium of large oil and processing companies to further develop the catalytic cracking process They eventually came up with the concept of a moving bed of catalyst The moving bed was termed fluidized as it moved and had properties analogous to a flu...

Catalytic Reactors A ReviewKnow More

Section 4 summarize the modeling aspects of fluidized bed catalytic reactors and biocatalytic reactors respectively Section 5 highlights the developments in unconventional reactors 2 Fixed Bed Reactor characteristics of the reactor...

Fluidization Characteristics of a Prototype Fluidized BedKnow More

The fluidization characteristics of a prototype-fluidized bed laboratory reactor were understudied in order to investigate the suitable conditions at which the dehydrogenation reaction of butane...

FLUIDIZED BED REACTOR DESIGN AND APPLICATION FORKnow More

Table 4 Design data for fluidized bed reactor 21 Table 5 Design solution for fluidized bed reactor 21 Table 6 Characteristic properties of the red-mud 23 Table 7 Experimentally observed data on hydrodynamic properties for Red-mud And Al particles 3 1 dp=157 181 Hs=58 cm 34 Table 8...

Modelling and Simulation of TwoKnow More

Abstract Fluidized bed reactors have unique qualities notably temperature uniformity favourable heat transfer and solids mobility which make them attractive for many catalytic and noncatalytic reactions involving solid particles and a gas or liqu...

Application of Pseudohomogeneous and Heterogeneous ModelsKnow More

Downloadable Comparative analysis of the steady-state and transient properties of a bubbling fluidized-bed catalytic reactor obtained according to different mathematical models of the emulsion zone was performed to verify the commonly used assumption regarding the pseudohomogeneous nature of this zone Four different mathematical models of the fluidized-bed reactor dynamics were formulated...

Introduction to FluidizationKnow More

Winkler coal gasifier in Germany Fluidized catalytic cracking units FCCUs for the production of high-octane gasoline and fluidized-bed reactors for making phthalic anhydride debuted in the 1940s Today about three-quarters of all polyolefins are made by a fluidized-bed process The development of a specialized zeolite catalyst for...

Experimental investigation of models for fluidized bedKnow More

J G Yates Fluidized-bed reactor models Fundamentals of Fluidized Bed Chemical Processes 101016/B978-0-408-70909-550009-6 72-120 1983 Crossref Michael H Peters Liang-Shih Fan and Thomas L Sweeney Reactant dynamics in catalytic fluidized bed reactors with flow reversal of gas in the emulsion phaset Chemical Engineering Science...

Catalytic_ReactorspptKnow More

Table 122 Laboratory and Bench-Scale Catalytic Reactors Classes Class Examples Features Fixed bed tubular Laboratory differential/integral Bench-scale integral 05 cm diam tubular microreactor 01-1 g catalyst solid catalyst gas fluid glass or metal 25 cm diam x 30-50 cm long tubular reactor 50-200 g catalyst solid catalyst gas or liquid fluid metal Stirred gas fixed bed...

Fluidized Bed ReactorsKnow More

Fluidized bed reactors are heterogeneous catalytic reactors in which the mass of catalyst is fluidized This allows for extensive mixing in all directions A result of the mixing is excellent temperature stability and increased mass-transfer and reaction rat Fluidized bed reactors...

Experimental investigation of models for fluidized bedKnow More

Michael H Peters Liang-Shih Fan Thomas L Sweeney Reactant dynamics in catalytic fluidized bed reactors with flow reversal of gas in the emulsion phaset Chemical Engineering Science 101016/0009-2509 82 80118-8 37 4 553-565 1982...

PDF Application of Pseudohomogeneous and HeterogeneousKnow More

PDF Comparative analysis of the steady-state and transient properties of a bubbling fluidized-bed catalytic reactor obtained according to different Find read and cite all the research you...

Packed Bed Reactors PBRsKnow More

Characteristics Fluidized Bed Reactor Heterogeneous reactions like a CSTR in that the reactants are well mixed Kinds of Phases Present Usage Advantages Disadvantages 1 Gas-sol 2 Gas-solid catalyzed 1 Heterogeneous has phase reactions with a catalyst 1...

Modeling and Simulation of Methanol Synthesis inKnow More

The fluidized-bed reactor has the ability to process large volumes of fluid 2 For the catalytic cracking of petroleum naphtha to form gasoline blends Their main characteristics are 1 Negligible diffusion resistances within the catalyst particl 2 High heat and mass transfer rates between gas and particl 3 Low pressure drop 4...