Direct conversion of methane to aromatics in a catalytic co-ionic membrane reactor
Top Cited Papers
- 5 August 2016
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 353 (6299), 563-566
- https://doi.org/10.1126/science.aag0274
Abstract
Nonoxidative methane dehydroaromatization (MDA: 6CH4 ↔ C6H6 + 9H2) using shape-selective Mo/zeolite catalysts is a key technology for exploitation of stranded natural gas reserves by direct conversion into transportable liquids. However, this reaction faces two major issues: The one-pass conversion is limited by thermodynamics, and the catalyst deactivates quickly through kinetically favored formation of coke. We show that integration of an electrochemical BaZrO3-based membrane exhibiting both proton and oxide ion conductivity into an MDA reactor gives rise to high aromatic yields and improved catalyst stability. These effects originate from the simultaneous extraction of hydrogen and distributed injection of oxide ions along the reactor length. Further, we demonstrate that the electrochemical co-ionic membrane reactor enables high carbon efficiencies (up to 80%) that improve the technoeconomic process viability.Funding Information
- Research Council of Norway (195912, 210418, 210765, 219194)
- Spanish Government (SEV-2012-0267, ENE2014-57651)
This publication has 23 references indexed in Scilit:
- Catalytic aromatization of methaneChemical Society Reviews, 2013
- Thermodynamic Analysis of Nonoxidative Dehydroaromatization of MethaneChemical Engineering & Technology, 2012
- Conductivity, transport number measurements and hydration thermodynamics of BaCe0.2Zr0.7Y(0.1−ξ)NiξO(3−δ)Solid State Ionics, 2011
- Exergy analysis of the demonstration plant for co-production of hydrogen and benzene from biogasInternational Journal of Hydrogen Energy, 2009
- Direct conversion of methane on Mo/ZSM-5 catalysts to produce benzene and hydrogen: achievements and perspectivesEnergy & Environmental Science, 2008
- Advanced anodes for high-temperature fuel cellsNature Materials, 2004
- Promotional role of water added to methane feed on catalytic performance in the methane dehydroaromatization reaction on Mo/HZSM-5 catalystJournal of Catalysis, 2003
- Direct conversion of methane under nonoxidative conditionsJournal of Catalysis, 2003
- Aspects of the formation and mobility of protonic charge carriers and the stability of perovskite-type oxidesSolid State Ionics, 1999
- Synthesis and characterization of the MCM-22 zeoliteZeolites, 1995