Reaction Kinetics and Reactor Design

Butt, John

doi:10.1201/9781482293234

Cited by 122 publications

(98 citation statements)

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“…The boundary conditions for Equation (6) are similar to Equations (2) and (3). The steady-state heat balance equation for the first-order reaction in the non-isothermal catalyst pellet is derived as [5]:…”

Section: Mathematical Formulationmentioning

confidence: 99%

A set of Jupyter notebooks for the analysis of transport phenomena and reaction in porous catalyst pellet

Golman

2019

Comp Applic In Engineering

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A set of user friendly Jupyter notebooks was developed to illustrate the techniques used to solve mass and heat balances for chemical and enzyme catalyzed reactions in a porous pellet. The advanced model of chemical vapor deposition reaction in an agglomerate of fine particles was considered as an example of non‐catalytic reactions. The developed notebooks combine the theoretical description of model equations, numerical algorithms, the computer code, and results of simulations with graphs. The computer code can be easily modified to suit user's research needs. This particular software helps students to learn the theoretical basis of mathematical models used for chemical reactions in the porous media while acquiring the practical skills in applying these models for various important reactions.

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Section: Mathematical Formulationmentioning

confidence: 99%

A set of Jupyter notebooks for the analysis of transport phenomena and reaction in porous catalyst pellet

Golman

2019

Comp Applic In Engineering

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“…The axial dispersion coefficient (D ax ) is estimated from the empirical correlation, valid for liquids in packed beds 26 : The proposed model considers a global mass transfer coefficient for the resin beads (K L ), which combines the external and internal mass transfer coefficients for adsorbable species, 27 defined, for each component, as:…”

Section: Mass Transfer Parameters In the Resin Bedmentioning

confidence: 99%

PermSMBR-A new hybrid technology: Application on green solvent and biofuel production

Silva¹,

Pereira²,

Rodrigues³

2010

AIChE J.

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A new technology, the simulated moving bed membrane reactor (PermSMBR), was presented and applied for the production of the green solvent ethyl lactate and of the biofuel 1,1-diethoxyethane. Its conception was a result of process reintensification for oxygenates production, by integrating the simulated moving bed reactor with hydrophilic membranes to enhance the water removal, leading to high process performance. For ethyl lactate synthesis, the PermSMBR technology proved to have better performance than the reactive distillation (RD) and the simulated moving bed reactor (SMBR) processes; the RD and SMBR processes require more 152 and 165% of ethanol consumption than the new technology, respectively. For the 1,1-diethoxyethane production, the PermSMBR also leads to a decrease in ethanol consumption of 69% and a productivity enhancement of 53%, when comparing with the SMBR.

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“…Optimal mixing produces uniformity by reducing thermal stratification, dispersing the substrate for better contact between reactants, and reduces scum buildup in the digester. If mixing is inadequate, the efficiency of digestion is reduced (Butt, 1980;Cholette and Cloutier, 1959;Hendricks, 2006;Vesilind, 2003).…”

Section: Introductionmentioning

confidence: 99%

CFD Simulation of Vertical Linear Motion Mixing in Anaerobic Digester Tanks

Meroney¹,

Sheker²

2014

Water Environment Research

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Computational fluid dynamics (CFD) was used to simulate the mixing characteristics of a small circular anaerobic digester tank (diameter 6 m) equipped sequentially with 13 different plunger type vertical linear motion mixers and two different type internal draft-tube mixers. Rates of mixing of step injection of tracers were calculated from which active volume (AV) and hydraulic retention time (HRT) could be calculated. Washout characteristics were compared to analytic formulae to estimate any presence of partial mixing, dead volume, short-circuiting, or piston flow. Active volumes were also estimated based on tank regions that exceeded minimum velocity criteria. The mixers were ranked based on an ad hoc criteria related to the ratio of AV to unit power (UP) or AV/ UP. The best plunger mixers were found to behave about the same as the conventional draft-tube mixers of similar UP. Water Environ. Res., 86, 816 (2014).

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Reaction Kinetics and Reactor Design

Cited by 122 publications

References 0 publications

A set of Jupyter notebooks for the analysis of transport phenomena and reaction in porous catalyst pellet

A set of Jupyter notebooks for the analysis of transport phenomena and reaction in porous catalyst pellet

PermSMBR-A new hybrid technology: Application on green solvent and biofuel production

CFD Simulation of Vertical Linear Motion Mixing in Anaerobic Digester Tanks

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