Studies on a Membrane Reactor

Mohan, Krishna; Govind, Rakesh

doi:10.1080/01496398808075659

Cited by 29 publications

(8 citation statements)

References 14 publications

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“…Dokiya et al (1977, 1978) Kameyama et al (1981, 1983) Kameyama et al (1983) Shindo et al (1981 It0 et al (1984) Mohan and Govind Shinji et al (1982) Ito et al (1985 Mohan and Govind ( ,1988( ) Ito (1987 Wood (1968) Gryaznov et al…”

Section: Background Studymentioning

confidence: 96%

“…However, when PEpduct(Z) < PE,,,, < PEprduct(,), conversions greater than X , , can be achieved, since equilibrium shift also depends on separation of products. We also have studied (Mohan and Govind, 1988) the effect of permeate recycle on membrane reactor performance for the example reactions in Table 3. As expected, the conversion ratio for cyclohexane dehydrogenation and compressor load (qs) substantial enhancement over X,,, is possible for the other two reactions.…”

Section: Recyclementioning

confidence: 99%

“…At small inert flow rates, there is significant backpermeation of product and no enhancement of conversion is possible. For the reactions in Table 3, backpermeation is useful only for cyclohexane dehydrogenation (Mohan and Govind, 1988).…”

Section: Effect Of Inertsmentioning

confidence: 99%

“…Though the results in this table were obtained using the rate expression for propylene disproportionation, the following analysis is valid for other reaction mechanisms. For details on the kinetic rate equation, refer to Mohan and Govind (1988).…”

Section: Cocurrent Vs Countercurrentflowmentioning

confidence: 99%

“…Chang and Hwang (1987) Govind (1988) (1988) Model Development ure 1. A reversible reaction of the type Consider the reactors with a permselective wall shown in Fig-is taking place on one side of the membrane, referred to as the reaction side.…”

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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