Catalytic co-aromatization of ethanol and methane
Abstract
This study demonstrates the technical feasibility of simultaneously converting ethanol and methane into liquid hydrocarbons at mild reaction conditions (400 °C and 1 atm) over silver and/or zinc modified zeolite catalysts. After GC-MS analysis, it is worth noting that aromatics are the major compounds contained in the liquid product collected from the run when 1%Ag/ZSM-5, particularly after H2 pretreatment, is charged. Compared to the performance exhibited from the run with pure HZSM-5 support engaged, Ag addition into the HZSM-5 framework favors aromatics formation, which might be closely associated with better Ag dispersion and more abundance of strong surface acidic sites where aromatization might take place while Zn loading exerts a detrimental effect on the production of aromatics but promotes the ether generation possibly through dehydration reaction. Referred to that from its N2 counterpart, the increased aromatics formation of the collected liquid product when methane is present indicates that methane existence might facilitate ethanol aromatization. Moreover, combined with the increased carbon number in the formed aromatics from CH4 run when H2 run is referred and zero liquid formation from CH4-alone test as well as more prominent endothermic feature of methane run and more importantly the notably increased 13C signals in 13Cmore »
- Authors:
-
[1]
- Univ. of Calgary, Calgary, AB (Canada)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of Alberta, Edmonton, AB (Canada)
- National Institute for Nanotechnology, Edmonton, AB (Canada)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1339508
- Report Number(s):
- NREL/JA-5100-67709
Journal ID: ISSN 0926-3373
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Catalysis B: Environmental
- Additional Journal Information:
- Journal Volume: 198; Journal Issue: C; Journal ID: ISSN 0926-3373
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; methane; ethanol; catalyst; aromatization; ZSM-5
Citation Formats
Wang, Aiguo, He, Peng, Yung, Matthew, Zeng, Hongbo, Qian, Hui, and Song, Hua. Catalytic co-aromatization of ethanol and methane. United States: N. p., 2016.
Web. doi:10.1016/j.apcatb.2016.06.013.
Wang, Aiguo, He, Peng, Yung, Matthew, Zeng, Hongbo, Qian, Hui, & Song, Hua. Catalytic co-aromatization of ethanol and methane. United States. https://doi.org/10.1016/j.apcatb.2016.06.013
Wang, Aiguo, He, Peng, Yung, Matthew, Zeng, Hongbo, Qian, Hui, and Song, Hua. Mon .
"Catalytic co-aromatization of ethanol and methane". United States. https://doi.org/10.1016/j.apcatb.2016.06.013. https://www.osti.gov/servlets/purl/1339508.
@article{osti_1339508,
title = {Catalytic co-aromatization of ethanol and methane},
author = {Wang, Aiguo and He, Peng and Yung, Matthew and Zeng, Hongbo and Qian, Hui and Song, Hua},
abstractNote = {This study demonstrates the technical feasibility of simultaneously converting ethanol and methane into liquid hydrocarbons at mild reaction conditions (400 °C and 1 atm) over silver and/or zinc modified zeolite catalysts. After GC-MS analysis, it is worth noting that aromatics are the major compounds contained in the liquid product collected from the run when 1%Ag/ZSM-5, particularly after H2 pretreatment, is charged. Compared to the performance exhibited from the run with pure HZSM-5 support engaged, Ag addition into the HZSM-5 framework favors aromatics formation, which might be closely associated with better Ag dispersion and more abundance of strong surface acidic sites where aromatization might take place while Zn loading exerts a detrimental effect on the production of aromatics but promotes the ether generation possibly through dehydration reaction. Referred to that from its N2 counterpart, the increased aromatics formation of the collected liquid product when methane is present indicates that methane existence might facilitate ethanol aromatization. Moreover, combined with the increased carbon number in the formed aromatics from CH4 run when H2 run is referred and zero liquid formation from CH4-alone test as well as more prominent endothermic feature of methane run and more importantly the notably increased 13C signals in 13C NMR spectra of the liquid product collected during ethanol conversion under 13CH4 environment, all the observations suggest that methane might be activated nonoxidatively and converted into higher hydrocarbons, preferentially into aromatics if suitable catalyst is charged under the assistance of co-existing oxygenated hydrocarbon. Lastly, the reported synergetic effect could potentially lead to the more economic utilization of abundant natural gas and cellulosic ethanol.},
doi = {10.1016/j.apcatb.2016.06.013},
journal = {Applied Catalysis B: Environmental},
number = C,
volume = 198,
place = {United States},
year = {2016},
month = {6}
}
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Works referencing / citing this record:
Catalytic aromatization of acetone as a model compound for biomass-derived oil under a methane environment
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