Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration
Abstract
Catalytic hot gas filtration (CHGF) is used to precondition biomass derived fast pyrolysis (FP) vapors by physically removing reactive char and alkali particulates and chemically converting reactive oxygenates to species that are more easily upgraded during subsequent catalytic fast pyrolysis (CFP). Carboxylic acids, such as acetic acid and propionic acid, form during biomass fast pyrolysis and are recalcitrant to downstream catalytic vapor upgrading. This work developed and evaluated catalysts that can convert these acids to more upgradeable ketones at the laboratory scale. Selective catalytic conversion of these reactive oxygenates to more easily upgraded compounds can enhance bio-refinery processing economics through catalyst preservation by reduced coking from acid cracking, by preserving carbon efficiency, and through process intensification by coupling particulate removal with partial upgrading. Two metal-doped molybdenum carbide (Mo2C) supported catalyst beads were synthesized and evaluated and their performance compared with an undoped Mo2C control catalyst beads. For laboratory scale acetic acid conversion, calcium doped Mo2C supported catalyst beads produced the highest yield of acetone at ~96% at 450 °C among undoped and Ca or Ni doped catalysts.
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1485170
- Alternate Identifier(s):
- OSTI ID: 1486931
- Grant/Contract Number:
- WBS2.5.5.507; AC05-00OR22725
- Resource Type:
- Published Article
- Journal Name:
- Catalysts
- Additional Journal Information:
- Journal Name: Catalysts Journal Volume: 8 Journal Issue: 12; Journal ID: ISSN 2073-4344
- Publisher:
- MDPI AG
- Country of Publication:
- Switzerland
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Lu, Mi, Lepore, Andrew, Choi, Jae-Soon, Li, Zhenglong, Wu, Zili, Polo-Garzon, Felipe, and Hu, Michael. Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration. Switzerland: N. p., 2018.
Web. doi:10.3390/catal8120643.
Lu, Mi, Lepore, Andrew, Choi, Jae-Soon, Li, Zhenglong, Wu, Zili, Polo-Garzon, Felipe, & Hu, Michael. Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration. Switzerland. https://doi.org/10.3390/catal8120643
Lu, Mi, Lepore, Andrew, Choi, Jae-Soon, Li, Zhenglong, Wu, Zili, Polo-Garzon, Felipe, and Hu, Michael. Sun .
"Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration". Switzerland. https://doi.org/10.3390/catal8120643.
@article{osti_1485170,
title = {Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration},
author = {Lu, Mi and Lepore, Andrew and Choi, Jae-Soon and Li, Zhenglong and Wu, Zili and Polo-Garzon, Felipe and Hu, Michael},
abstractNote = {Catalytic hot gas filtration (CHGF) is used to precondition biomass derived fast pyrolysis (FP) vapors by physically removing reactive char and alkali particulates and chemically converting reactive oxygenates to species that are more easily upgraded during subsequent catalytic fast pyrolysis (CFP). Carboxylic acids, such as acetic acid and propionic acid, form during biomass fast pyrolysis and are recalcitrant to downstream catalytic vapor upgrading. This work developed and evaluated catalysts that can convert these acids to more upgradeable ketones at the laboratory scale. Selective catalytic conversion of these reactive oxygenates to more easily upgraded compounds can enhance bio-refinery processing economics through catalyst preservation by reduced coking from acid cracking, by preserving carbon efficiency, and through process intensification by coupling particulate removal with partial upgrading. Two metal-doped molybdenum carbide (Mo2C) supported catalyst beads were synthesized and evaluated and their performance compared with an undoped Mo2C control catalyst beads. For laboratory scale acetic acid conversion, calcium doped Mo2C supported catalyst beads produced the highest yield of acetone at ~96% at 450 °C among undoped and Ca or Ni doped catalysts.},
doi = {10.3390/catal8120643},
journal = {Catalysts},
number = 12,
volume = 8,
place = {Switzerland},
year = {Sun Dec 09 00:00:00 EST 2018},
month = {Sun Dec 09 00:00:00 EST 2018}
}
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https://doi.org/10.3390/catal8120643
https://doi.org/10.3390/catal8120643
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Cited by: 5 works
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Figures / Tables:
Figure 1: Product selectivity and propionic acid conversion over three types of carbide pellet catalysts after pretreatment with 10% H2 at 500 °C for 2 h: (A) Mo2C, 4 h time on stream (TOS); (B) Ni-Mo2C, 4 h TOS; (C) Ca-Mo2C, 4 h TOS, but the final injection was takenmore »
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Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.