Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation

Novel reactor configurations for the oxidative coupling of methane (OCM), and in particular membrane reactors, contribute toward reaching the yield required to make the process competitive at the industrial scale. Therefore, in this work, the conventional OCM packed bed reactor using a Mn-Na<sub&...

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Main Authors:	Aitor Cruellas, Wout Ververs, Martin van Sint Annaland, Fausto Gallucci
Format:	Article
Language:	English
Published:	MDPI AG 2020-07-01
Series:	Membranes
Subjects:	oxidative coupling of methane membrane reactors porous membrane distributive feeding
Online Access:	https://www.mdpi.com/2077-0375/10/7/152

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spelling	doaj-fef7b024fc3441cdb8dbf4021d29c9672020-11-25T02:53:42ZengMDPI AGMembranes2077-03752020-07-011015215210.3390/membranes10070152Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-PermeationAitor Cruellas0Wout Ververs1Martin van Sint Annaland2Fausto Gallucci3Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsDepartment of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsDepartment of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsDepartment of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsNovel reactor configurations for the oxidative coupling of methane (OCM), and in particular membrane reactors, contribute toward reaching the yield required to make the process competitive at the industrial scale. Therefore, in this work, the conventional OCM packed bed reactor using a Mn-Na<sub>2</sub>WO<sub>4</sub>/SiO<sub>2</sub> catalyst was experimentally compared with a membrane reactor, in which a symmetric MgO porous membrane was integrated. The beneficial effects of distributive feeding of oxygen along the membrane, which is the main advantage of the porous membrane reactor, were demonstrated, although no significant differences in terms of performance were observed because of the adverse effects of back-permeation prevailing in the experiments. A sensitivity analysis carried out on the effective diffusion coefficient also indicated the necessity of properly tuning the membrane properties to achieve the expected promising results, highlighting how this tuning could be addressed.https://www.mdpi.com/2077-0375/10/7/152oxidative coupling of methanemembrane reactorsporous membranedistributive feeding
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Aitor Cruellas Wout Ververs Martin van Sint Annaland Fausto Gallucci
spellingShingle	Aitor Cruellas Wout Ververs Martin van Sint Annaland Fausto Gallucci Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation Membranes oxidative coupling of methane membrane reactors porous membrane distributive feeding
author_facet	Aitor Cruellas Wout Ververs Martin van Sint Annaland Fausto Gallucci
author_sort	Aitor Cruellas
title	Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation
title_short	Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation
title_full	Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation
title_fullStr	Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation
title_full_unstemmed	Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation
title_sort	experimental investigation of the oxidative coupling of methane in a porous membrane reactor: relevance of back-permeation
publisher	MDPI AG
series	Membranes
issn	2077-0375
publishDate	2020-07-01
description	Novel reactor configurations for the oxidative coupling of methane (OCM), and in particular membrane reactors, contribute toward reaching the yield required to make the process competitive at the industrial scale. Therefore, in this work, the conventional OCM packed bed reactor using a Mn-Na<sub>2</sub>WO<sub>4</sub>/SiO<sub>2</sub> catalyst was experimentally compared with a membrane reactor, in which a symmetric MgO porous membrane was integrated. The beneficial effects of distributive feeding of oxygen along the membrane, which is the main advantage of the porous membrane reactor, were demonstrated, although no significant differences in terms of performance were observed because of the adverse effects of back-permeation prevailing in the experiments. A sensitivity analysis carried out on the effective diffusion coefficient also indicated the necessity of properly tuning the membrane properties to achieve the expected promising results, highlighting how this tuning could be addressed.
topic	oxidative coupling of methane membrane reactors porous membrane distributive feeding
url	https://www.mdpi.com/2077-0375/10/7/152
work_keys_str_mv	AT aitorcruellas experimentalinvestigationoftheoxidativecouplingofmethaneinaporousmembranereactorrelevanceofbackpermeation AT woutververs experimentalinvestigationoftheoxidativecouplingofmethaneinaporousmembranereactorrelevanceofbackpermeation AT martinvansintannaland experimentalinvestigationoftheoxidativecouplingofmethaneinaporousmembranereactorrelevanceofbackpermeation AT faustogallucci experimentalinvestigationoftheoxidativecouplingofmethaneinaporousmembranereactorrelevanceofbackpermeation
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Experimental Investigation of the Oxidative Coupling of Methane in a Porous Membrane Reactor: Relevance of Back-Permeation

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