Analysis of a cocurrent membrane reactor

Mohan, Krishna; Govind, Rakesh

doi:10.1002/aic.690321219

Cited by 65 publications

(16 citation statements)

References 3 publications

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“…The performance of a membrane reactor without recycle has been summarized in Mohan and Govind (1986). Results from the previous study have shown that an infinite reactor (to consume all reactant) operating a t a pressure ratio of zero and an infinitesimally small (but not zero) rate ratio (to reduce reactant loss) will give the largest amount of equilibrium shift.…”

Section: Effect Of Design and Operating Parametersmentioning

confidence: 98%

“…Ito et al (1985) simulated the membrane reactor with the above reaction and showed that, for given rates of permeation and reaction, there is an optimum thickness of membrane a t which maximum conversion is obtained. In a separate parametric study (Mohan and Govind, 1986), it is shown that for a membrane, which is permeable to both products and reactants, the maximum equilibrium shift possible is limited by the loss of reactant from the reaction zone.…”

Section: Background Studymentioning

confidence: 99%

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Analysis of equilibrium shift in isothermal reactors with a permselective wall

Mohan

Govind

1988

AIChE Journal

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The objective of this study is to obtain a fundamental understanding of the behavior of reactors with a permselective wall (membrane reactors) in terms of: design parameters (reactor length, membrane thickness); operating variables (pressure ratio, feed flow rate): physical properties (rate constant, permeability of fast gas, permselectivity, equilibrium constant): and flow patterns (recycle, cocurrent, countercurrent). Pure feed reacts on the high-pressure side of the membrane, and the product(s) formed are continuously removed to the low-pressure side so that thermodynamic equilibrium is never reached. It is shown by simulation that equilibrium shift can be enhanced by: recycling unconverted reactant; shifting feed location to separate products; and maintaining high permeation rates to reduce backreaction. It is also shown that the choice between cocurrent flow and countercurrent flow depends on the system parameters.

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Section: Effect Of Design and Operating Parametersmentioning

confidence: 98%

Section: Background Studymentioning

confidence: 99%

Analysis of equilibrium shift in isothermal reactors with a permselective wall

Mohan

Govind

1988

AIChE Journal

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“…The effect of operating Notation a v specific surface area of catalyst pellet (m 2 m À3 ) a b interface area between bubbles and emulsion phase (m 2 ) A c cross section area of each tube (m 2 ) A i frequency factor for elementary reaction step i (kmol/(kgcat h)) C total concentration (mol m À3 ) C p specific heat of the gas at constant pressure (J mol À1 K À1 ) d p particle diameter (m) conditions on membrane reactor performance has been extensively studied [18,19]. The application of membrane technology in chemical reaction processes has recently focused on reaction systems containing hydrogen and oxygen, and is based on inorganic membranes such as Pd and ceramic membranes [20].…”

Section: Membrane Reactormentioning

confidence: 99%

A novel configuration of decalin and hydrogen loop in optimized thermally coupled reactors in GTL technology via differential evolution method

Rahimpour

Mirvakili

2013

Journal of Industrial and Engineering Chemistry

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“…Partial pressures for the methyl acetate process at equilibrium on both sides of the membrane (retentate and permeate) were investigated by Itoh [4,5]. Constant concentration profiles obtained by mass balance and kinetics were studied by Mohan and Govind [6] and Abashar and Al-Rabiah [7] and the activities at equilibrium for diffusing compounds using mole balances were investigated by Rezai and Traa [8]. In this work, this last methodology has been used for the methyl acetate case.…”

Section: Introductionmentioning

confidence: 98%

Pervaporation membrane reactor design guidelines for the production of methyl acetate

Lopez-Zamora

Fontalvo

García

2013

Desalination and Water Treatment

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A B S T R A C TDesign guidelines were applied for the production of methyl acetate in a pervaporation membrane reactor. The limits of operation were determined. The shift in equilibrium is evaluated by a simple model involving simultaneously chemical equilibrium and transport across the membrane. This analysis establishes possibilities and limitations of a pervaporation membrane reactor. The performance of a continuous stirred tank reactor with a pervaporation membrane (PV-CSTR) is analyzed. To achieve conversions higher than 90%, conditions must satisfy D a > 150 and 0.01 < P e < 100. Increasing temperature has a negative effect on membrane reactor conversion. The effect of sweep is important at high-permeate pressures. Two design charts were created to illustrate dynamics between permeation rates, reaction rates, and selectivity with conversion. The three powerful tools proposed for the analysis of a pervaporation membrane reactor described the system in a systematic way.

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Analysis of a cocurrent membrane reactor

Cited by 65 publications

References 3 publications

Analysis of equilibrium shift in isothermal reactors with a permselective wall

Analysis of equilibrium shift in isothermal reactors with a permselective wall

A novel configuration of decalin and hydrogen loop in optimized thermally coupled reactors in GTL technology via differential evolution method

Pervaporation membrane reactor design guidelines for the production of methyl acetate

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