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Reaction homogeneous reactions

Define the following expressions empirical method, metastable equilibrium, kindling temperature, thermostat, interface, dynamic steady state, unimolecular reaction, bimolecular reaction, homogeneous reaction, heterogeneous reaction. [Pg.412]

However, before extrapolating the arguments from the gross patterns through the reactor for homogeneous reactions to solid-catalyzed reactions, it must be recognized that in catalytic reactions the fluid in the interior of catalyst pellets may diSer from the main body of fluid. The local inhomogeneities caused by lowered reactant concentration within the catalyst pellets result in a product distribution different from that which would otherwise be observed. [Pg.48]

This is an exothermic, reversible, homogeneous reaction taking place in a single liquid phase. The liquid butadiene feed contains 0.5 percent normal butane as an impurity. The sulfur dioxide is essentially pure. The mole ratio of sulfur dioxide to butadiene must be kept above 1 to prevent unwanted polymerization reactions. A value of 1.2 is assumed. The temperature in the process must be kept above 65°C to prevent crystallization of the butadiene sulfone but below lOO C to prevent its decomposition. The product must contain less than 0.5 wt% butadiene and less thM 0.3 wt% sulfur dioxide. [Pg.118]

For homogeneous reactions we obtain the conventional definition of the reaction rate u. as rate of conversion per volume... [Pg.760]

Consider again the prototypical homogeneous reaction (C2.14.13), which Renyi has analysed in detail 1801. Taking the forward reaction only (other cases are also dealt with in [80]), and supposing that kj. 4 n (d +dj )(Dg+Dj (cf equation (C2.14.20)), then... [Pg.2829]

The reasons for this lack of work are manifold The problem is quite complex and difficult to tackle. The information in reaction databases is inherently biased only known reactions, no reactions that failed, are stored. However, any learning also needs information on situations where a certain event will not happen or will fad. The quality of information stored in reaction databases often leaves something to be desired reaction equations are incomplete, certain detads on a reaction are often incomplete or missing, the coverage of the reaction space is not homogeneous, etc. Nevertheless, the challenge is there and the merits of success should be great ... [Pg.544]

Mass-Transfer Coefficients with Chemical Reaction. Chemical reaction can occur ia any of the five regions shown ia Figure 3, ie, the bulk of each phase, the film ia each phase adjacent to the iaterface, and at the iaterface itself. Irreversible homogeneous reaction between the consolute component C and a reactant D ia phase B can be described as... [Pg.64]

Digester Control For control purposes at constant sulfidity and alkah charge, the deligniftcation rate is treated as a homogeneous reaction, which is first order with respect to the lignin, % remaining in the wood, —dL jdt = kL. The influence of time, t, and temperature, T (Kelvin), has been incorporated into one term, called the JT-factor (33). [Pg.265]

Fig. 6. Reaction zones for a first-order, fast irreversible homogeneous reaction, in reactants A and B with Ha > 2 and (a) Fig. 6. Reaction zones for a first-order, fast irreversible homogeneous reaction, in reactants A and B with Ha > 2 and (a) <Dg Cg /t g (b)...
Poly(vinyl alcohol) undergoes Michaels addition with compounds containing activated double bonds, including acrylonitrile (145—150), acrylamide (151—153), A/-methylolacrylamide (154—156), methyl vinyl ketone (157,158), acrolein (157), and sodium 2-acrylamido-2-methylpropanesulfonate (159). The reactions have been carried out under conditions spanning from homogeneous reactions in solvent to heterogeneous reactions occurring in the swollen powder or fiber. [Pg.481]

Homogeneous reactions. Homogeneous noncatalytic reactions are normally carried out in a fluidized bed to achieve mixing of the gases and temperature control. The sohds of the bed act as a heat sink or source and facihtate heat transfer from or to the gas or from or to heat-exchange surfaces. Reaclious of this type include chlorination of hydrocarbons or oxidation of gaseous fuels. [Pg.1573]

Few mechanisms of liquid/liquid reactions have been established, although some related work such as on droplet sizes and power input has been done. Small contents of surface-ac tive and other impurities in reactants of commercial quality can distort a reac tor s predicted performance. Diffusivities in liquids are comparatively low, a factor of 10 less than in gases, so it is probable in most industrial examples that they are diffusion controllech One consequence is that L/L reactions may not be as temperature sensitive as ordinary chemical reactions, although the effec t of temperature rise on viscosity and droplet size can result in substantial rate increases. L/L reac tions will exhibit behavior of homogeneous reactions only when they are very slow, nonionic reactions being the most likely ones. On the whole, in the present state of the art, the design of L/L reactors must depend on scale-up from laboratoiy or pilot plant work. [Pg.2116]

There are instances where an extractive solvent is employed to force completion of a reversible homogeneous reaction by removing the reaction product. In the production of KNO3 from KCl and HNO3, for instance, the HCl can be removed continuously from the aqueous phase by contact with amyl alcohol, thus forcing completion (Baniel and Blumberg, Chim. Ind, 4, 27 [1957]). [Pg.2116]

Reactions involving collisions between two molecular species such as H2 and I2, or between two HI molecules are called bimolecular or second-order homogeneous reactions, because they involve the collision between two molecular species, and they are homogeneous since they occur in a single gas phase. The rates of these reactions are dependent on the product of the partial pressure of each reactant, as discussed above, and for the formation of HI, and the decomposition of HI,... [Pg.50]

The rate of formation of the products of steam reforming is extremely slow in the homogeneous reaction, and the reaction only proceeds at a useful rate in the presence of the catalyst. This indicates that adsorption of the reactant gases on the catalyst surface is a necessary step in the initiation of a useful reaction. The nature of the adsorption processes can be described by the equations ... [Pg.132]

Inert gas pressure, temperature, and conversion were selected as these are the critical variables that disclose the nature of the basic rate controlling process. The effect of temperature gives an estimate for the energy of activation. For a catalytic process, this is expected to be about 90 to 100 kJ/mol or 20-25 kcal/mol. It is higher for higher temperature processes, so a better estimate is that of the Arrhenius number, y = E/RT which is about 20. If it is more, a homogeneous reaction can interfere. If it is significantly less, pore diffusion can interact. [Pg.110]

Testing conditions are not as constrained as for catalysts in an existing production unit, but other conditions may set some limits, like explosive range, start of a homogeneous reaction, corrosion, polymerization, etc. Literature should be searched for this limitation, in addition to other information on the main reaction. Literature gives much more information if interest is not limited to the main reaction but is extended to analogous processes as well. [Pg.123]

Efficiency means component 1 made per component 3 converted, all in molar units. Data show that 89.7% of the converted propylene was accounted for by the formed acrolein. An additional 9.8% efficiency is indicated for acrylic acid. Efficiency to total useftil product was 99.5% as long as ignition of homogeneous reaction could be avoided... [Pg.126]


See other pages where Reaction homogeneous reactions is mentioned: [Pg.293]    [Pg.542]    [Pg.558]    [Pg.542]    [Pg.558]    [Pg.205]    [Pg.726]    [Pg.1938]    [Pg.1941]    [Pg.2808]    [Pg.199]    [Pg.262]    [Pg.71]    [Pg.72]    [Pg.467]    [Pg.467]    [Pg.425]    [Pg.352]    [Pg.73]    [Pg.509]    [Pg.227]    [Pg.422]    [Pg.521]    [Pg.265]    [Pg.435]    [Pg.65]    [Pg.67]    [Pg.2067]    [Pg.2098]    [Pg.2099]    [Pg.2101]    [Pg.2112]    [Pg.77]    [Pg.22]    [Pg.60]    [Pg.126]   
See also in sourсe #XX -- [ Pg.54 ]




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A Homogeneous Gas Phase Reaction

Aqueous solutions, homogeneous reaction

Behaviour of molecular pairs in homogeneous reaction

Bimolecular reactions, homogeneous kinetics

Carboxylic acids homogeneous reactions

Catalysis of electrochemical reactions homogeneous

Catalytic reaction, coupled homogeneous electrode reactions

Cationic coordinated polymerizations homogeneous reactions

Cellulose homogeneous solution reactions

Chemical homogenous reactions

Chemical reaction kinetics difference between homogeneous

Chemical reactions homogeneous

Chemical reactions homogeneous catalysis

Chitin homogeneous solution reactions

Chronoamperometry homogeneous chemical reaction

Complex homogeneous reaction systems

Correspondence between homogeneous and heterogeneous reactions

Coupled homogeneous chemical reaction

Coupled homogeneous chemical reaction cyclic voltammetry

Coupled homogeneous chemical reaction following

Coupled homogeneous chemical reaction surface

Coupled homogeneous chemical reaction table

Coupled homogeneous chemical reaction volume

Coupled homogeneous electrode reactions

Coupled homogeneous electrode reactions constants

Coupled homogeneous electrode reactions current step

Coupled homogeneous electrode reactions following reaction

Coupled homogeneous electrode reactions measurements, effects

Coupled homogeneous electrode reactions methods

Coupled homogeneous electrode reactions preceding reaction

Coupled homogeneous electrode reactions principles

Coupled homogeneous electrode reactions theoretical treatments

Coupled homogeneous reactions

Coupled homogeneous reactions Dimerization

Coupled homogeneous reactions catalytic reaction schemes

Coupled homogeneous reactions polymerization

Coupled homogeneous reactions, double-step

Cyclic homogeneous chemical reactions

Cyclic voltammetry coupled homogeneous electrode reactions

Cyclic voltammetry coupled homogeneous reactions

Diffusion and Pseudo-Homogeneous Chemical Reactions in Isothermal Catalytic Pellets

Diffusion control of homogeneous reactions

Diffusion controlled homogeneous polymer reactions

Diffusion with homogeneous reaction

Diffusion-controlled homogeneous reactions

Disproportionation mechanism homogeneous solution reactions

Double electrodes, homogeneous chemical reactions

Electrode Electron Transfers with Homogeneous Chemical Reactions

Electrode processes involving coupled homogeneous reactions

Electron-transfer reactions homogeneous

Equilibrium reactions, homogeneous

Exchange reactions, homogeneous electron

Exothermic reactions Homogeneous mixture

Faradaic homogeneous chemical reaction

Fast reactions homogeneous

First-order reactions homogeneous

Fischer-Tropsch reaction homogeneous catalysis

Fischer-Tropsch reactions homogeneous

Formal Homogeneous Catalytic Reactions

Formal Kinetics of Homogenous Reactions

Formal Kinetics of Multiple Homogenous Reactions

Formal Kinetics of Single Homogenous Reactions

Formal Single Homogeneous Reactions

Friedel-Crafts acylation reactions catalytic homogeneous acylations

Fundamental and practical differences with homogeneous reactions

Further oxidation reactions of carbon monoxide in homogeneous systems

Gaseous phase, homogeneous reactions

Gases continued) reaction, homogeneous

Heck reaction homogeneous catalysts

Heterogeneous catalysis with homogeneous carbonylation reaction

Heterogeneous chemical reactions difference between homogeneous

Heterogeneous-homogeneous catalytic reaction models

Heterogeneous-homogeneous catalytic reactions, modeling

Heterogeneous-homogeneous reactions

Heterogeneous-homogeneous reactions chain branching

Heterogeneous-homogeneous reactions chain termination

Heterogeneous-homogeneous reactions free radicals

Heterogeneous-homogeneous reactions residence time

Heterogeneous-homogeneous reactions steady-state approximation

Heterogenization homogeneous reaction

Homogeneous Catalytic Reaction Schemes

Homogeneous Chemical Reactions her

Homogeneous Cluster Catalyzed Reactions

Homogeneous ET Reactions

Homogeneous Elementary Reactions in the Atmosphere and Rate Constants

Homogeneous Liquid Reactions

Homogeneous Photochemical Reactions

Homogeneous Reaction Rates as Affected by Concentrations of Reagents

Homogeneous Reaction, Gerischer Impedance

Homogeneous SCFs reactions

Homogeneous Transition-Metal Catalyzed Reactions Under Phase-Transfer Conditions

Homogeneous and Wall-catalyzed Reactions

Homogeneous and heterogeneous reactions

Homogeneous asymmetric catalysis enantioselective reactions

Homogeneous asymmetric catalysis reactions

Homogeneous asymmetric hydrogenation reactions

Homogeneous catalysis addition reactions

Homogeneous catalysis apparent reaction order

Homogeneous catalysis basic reactions

Homogeneous catalysis coordination reactions

Homogeneous catalysis individual reactions

Homogeneous catalysts, Suzuki coupling reactions

Homogeneous catalytic hydrogenation reaction

Homogeneous catalytic reactions

Homogeneous catalytic reactions catalyst recovery

Homogeneous catalytic reactions commercialization

Homogeneous catalytic reactions fast chemical reaction

Homogeneous catalytic reactions moderate chemical reaction

Homogeneous catalytic reactions slow chemical reaction

Homogeneous catalyzed reactions

Homogeneous chemical reaction first-order

Homogeneous chemical reaction problems

Homogeneous chemical reaction second-order

Homogeneous chemical reactions defined

Homogeneous chemical reactions disp 1 mechanism

Homogeneous chemical reactions, processes involving

Homogeneous exchange reactions

Homogeneous gas phase reaction

Homogeneous gas reactions

Homogeneous hydroformylation reactions

Homogeneous hydrosilation reactions

Homogeneous inner-sphere reactions

Homogeneous kinetic measurements first-order following reaction

Homogeneous liquid phase simple reaction

Homogeneous liquid phase simple reaction problem

Homogeneous liquid phase simple reaction solution

Homogeneous multiple reactions

Homogeneous or Heterogeneous Chemical Reaction as Rate-Determining Step

Homogeneous organic reactions

Homogeneous outer-sphere reactions

Homogeneous oxidation reactions

Homogeneous quasi-chemical reactions in the solid phase

Homogeneous reaction conditions

Homogeneous reaction defined

Homogeneous reaction electrochemical experiments

Homogeneous reaction electrochemical microscopy

Homogeneous reaction kinetics

Homogeneous reaction mechanism

Homogeneous reaction scale

Homogeneous reaction selectivity

Homogeneous reaction semibatch reactor

Homogeneous reaction system

Homogeneous reaction with open sequence

Homogeneous reactions

Homogeneous reactions

Homogeneous reactions catalyzed by organometallic compounds

Homogeneous reactions decay chains

Homogeneous reactions definition

Homogeneous reactions in the

Homogeneous reactions in the solid state

Homogeneous reactions of supercritical water

Homogeneous reactions quasi-equilibrium

Homogeneous reactions rate-determining path

Homogeneous reactions rate-determining step

Homogeneous reactions reactivity patterns

Homogeneous reactions sequential steps

Homogeneous reactions steady state

Homogeneous reactions, and

Homogeneous reactions, intrinsic

Homogeneous reactions, intrinsic barriers

Homogeneous reactions, scanning

Homogeneous reactions, scanning electrochemical microscopy

Homogeneous reactions, scanning solutions

Homogeneous reactions, solids

Homogeneous reactions, spatially nonuniform

Homogeneous redox reaction rates

Homogeneous reversible reactions

Homogeneous self-exchange reactions

Homogeneous side reactions

Homogeneous single reaction

Homogeneous solution phase reactions

Homogeneous sonochemistry reactions

Homogeneous surface, reaction rate

Homogeneous versus Heterogeneous Chemical Reactions

Homogeneous water-gas shift reaction

Homogeneously Catalysed Hydroformylation Reactions

Homogeneously Catalyzed Hydrogenation Reactions

Homogeneously catalyzed gas-liquid reactions

Homogenous Catalytic Reactions

Homogenous Catalytic Reactions in Biphasic Systems

Homogenous Two-Component Reactions

Homogenous hydrolysis reactions

Homogenous reactions

Homogenous reactions

Homogenous reactions 298 Subject

Hydrodynamic electrodes in the investigation of coupled homogeneous reactions

Hydroformylation reaction Hydrogen, homogeneous activation

Hydrogenation homogeneous reactions

Incomplete reactions, homogeneous

Initiation homogeneous reactions

Is the Reaction Heterogeneous or Homogeneous

KINETICS OF HOMOGENEOUS REACTIONS COUPLED TO HETEROGENEOUS ELECTRON TRANSFER

Key Reactions in Homogeneous Catalysis

Kinetic homogeneous reaction kinetics

Kinetics of Homogeneous Reactions

Kinetics of Homogeneously or Enzyme Catalyzed Reactions

Mass diffusion with homogeneous reaction

Mass transfer homogeneous reactions

Mass transfer with fast homogeneous reaction

Micro homogeneous reaction

Mixing-Sensitive Homogeneous Reactions

More complicated homogeneous reactions

Multiphase homogeneous catalysis aqueous reactions

Multiphase homogeneous catalysis organic reactions

Multiphase homogeneous catalytic reactions

Multiphase homogeneously catalyzed reactions

Noncatalytic homogeneous liquid phase reaction

On studies of the homogeneous acid-base reactions in ionic melts

Organometallic Compounds in Homogeneous Catalytic Reactions

Organometallic compounds, homogeneous catalytic reactions

Organometallic reactions and homogeneous catalysis

Palladium-Catalyzed Homogeneous Hydrogenation with Dihydrogen and Related Hydrogen Transfer Reactions

Phase reactions, homogeneous

Polymerisation reactions homogeneous catalysts

Polysaccharide homogeneous solution reactions

Potential homogeneous chemical reaction

Potential step homogeneous reactions

Preparation advances homogeneous-heterogeneous reactions

Processes with Coupled Homogeneous Reactions

Pseudo-homogeneous reaction rates

Pulse homogeneous chemical reaction

Quantitative geospeedometry based on homogeneous reactions

REACTORS FOR HOMOGENEOUS REACTIONS

Rate constants for homogeneous reactions

Rate laws continued homogeneous reactions

Rates of homogeneous reactions

Reaction Mechanisms in Homogeneous Systems

Reaction equilibrium homogeneous reactions

Reaction homogeneous application

Reaction homogeneous catalysis

Reaction homogeneous chemical kinetics

Reaction homogeneous degradation

Reaction homogeneous liquid-phase

Reaction homogeneous process

Reaction homogeneous uniform conversion

Reaction homogeneously catalyzed

Reaction homogenous liquid phase

Reaction kinetics homogeneous liquid

Reaction mechanisms homogenous

Reaction rate constant pseudo homogeneous

Reaction rate homogeneous

Reaction rate laws homogeneous reactions

Reactions Catalyzed by Solid-Supported IL Heterogeneous Catalysis with Homogeneous Performance

Reactions homogeneous batch

Reactions in Homogeneous Media Showing MW Rate Enhancement

Reactions in homogeneous aqueous solution

Reactions in homogeneous phase

Reactions with homogeneous chemical steps

Reactions, classes homogeneous

Reactor homogeneous reaction

Reactors for Homogeneously Catalyzed Reactions

Redox reactions homogeneous

Role of homogeneous reactions

Second-order reactions homogeneous

Shift reaction, homogeneous catalysis

Side Reactions in Homogeneous Catalysts

Silver homogeneous reactions

Simulation 3 Reactor Modeling for a Homogeneous Catalytic Reaction

Solid-state reactions homogeneous

Solvent Effects on the Rates of Homogeneous Chemical Reactions

Some Homogeneous Catalytic Reactions Involving Transition-Metal Complexes

Sonochemical reactions homogeneous

Special Reactions in Homogeneous Aqueous Systems

Stability homogeneous reactions

Steady-State Diffusion with Homogeneous Chemical Reaction

Steady-state mass diffusion with homogeneous chemical reaction

Stoichiometry homogeneous reaction

Studies of homogeneous acid-base reactions in ionic melts

Systems involving coupled homogeneous reactions

The Basic Reactions of Homogeneous Catalysis

Transfer hydrogenation homogeneous reactions

Transmission Coefficient, k, for Homogeneous Redox Reactions

Two-Dimensional Reaction Zones of Homogeneous Explosives

Unimolecular reactions, homogeneous

Zero-order reactions homogeneous

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