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Title: Supercritical Methanol Solvolysis and Catalysis for the Conversion of Delignified Woody Biomass into Light Alcohol Gasoline Bioblendstock

Abstract

Abstract Supercritical methanol (SCM) solvolysis and catalysis has recently emerged as a promising pathway to produce gasoline‐range light alcohols from woody biomass through staged depolymerization and hydro‐deoxygenation (DHDO). Here, structure–property relationships of Cu“M”AlO x catalysts (M = Mg, Zr, and Ce) are examined for upgrading delignified hybrid poplar via SCM‐DHDO. CuCeAlO x displays the highest activity, increasing the C 2 C 7 alcohol production rate and selectivity by twofold in batch reactions, and > 50% in semicontinuous reactions relative to the current state‐of‐the‐art CuMgAlO x . The performance of CuCeAlO x is correlated with its high reducibility and acidity. Cu sintering and biogenic impurity poisoning are identified as possible deactivation mechanisms over 60 h of continuous testing. The gasoline‐range SCM‐DHDO products are comprised of primarily aliphatic alcohols that result in improved energy density and favorably reduced vapor pressure, relative to ethanol, with the tradeoff of nonsynergistic octane blending with conventional gasoline and lower oxidation stability. Overall, this work highlights the potential to produce suitable light oxygenates by SCM‐DHDO processing for gasoline bioblendstock applications.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [2]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Catalytic Carbon Transformation and Scale-Up Center
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States). Center for Integrated Mobility Sciences
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
  4. National Renewable Energy Lab. (NREL), Golden, CO (United States). Catalytic Carbon Transformation and Scale-Up Center; Alder Fuels, Washington, DC (United States)
Publication Date:
Research Org.:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1845685
Alternate Identifier(s):
OSTI ID: 1842392
Report Number(s):
NREL/JA-5100-80793
Journal ID: ISSN 2366-7486; MainId:78571;UUID:0cd5f484-4773-449e-b0e4-a167d3464e3c;MainAdminID:63852
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Sustainable Systems
Additional Journal Information:
Journal Volume: 6; Journal Issue: 4; Journal ID: ISSN 2366-7486
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; bioblendstock; catalysis; gasoline; light-duty; solvolysis; woody biomass

Citation Formats

Nguyen, Hannah, Huq, Nabila A., Stuck, Daniela, Tifft, Stephen M., Conklin, Davis R., Koehler, Andrew J., McNeary, William Wilson, Fioroni, Gina M., Hays, Cameron, Christensen, Earl D., McNamara, Ian, Bartling, Andrew, Davis, Ryan, Unocic, Kinga A., and Vardon, Derek R. Supercritical Methanol Solvolysis and Catalysis for the Conversion of Delignified Woody Biomass into Light Alcohol Gasoline Bioblendstock. United States: N. p., 2022. Web. doi:10.1002/adsu.202100310.
Nguyen, Hannah, Huq, Nabila A., Stuck, Daniela, Tifft, Stephen M., Conklin, Davis R., Koehler, Andrew J., McNeary, William Wilson, Fioroni, Gina M., Hays, Cameron, Christensen, Earl D., McNamara, Ian, Bartling, Andrew, Davis, Ryan, Unocic, Kinga A., & Vardon, Derek R. Supercritical Methanol Solvolysis and Catalysis for the Conversion of Delignified Woody Biomass into Light Alcohol Gasoline Bioblendstock. United States. https://doi.org/10.1002/adsu.202100310
Nguyen, Hannah, Huq, Nabila A., Stuck, Daniela, Tifft, Stephen M., Conklin, Davis R., Koehler, Andrew J., McNeary, William Wilson, Fioroni, Gina M., Hays, Cameron, Christensen, Earl D., McNamara, Ian, Bartling, Andrew, Davis, Ryan, Unocic, Kinga A., and Vardon, Derek R. Thu . "Supercritical Methanol Solvolysis and Catalysis for the Conversion of Delignified Woody Biomass into Light Alcohol Gasoline Bioblendstock". United States. https://doi.org/10.1002/adsu.202100310. https://www.osti.gov/servlets/purl/1845685.
@article{osti_1845685,
title = {Supercritical Methanol Solvolysis and Catalysis for the Conversion of Delignified Woody Biomass into Light Alcohol Gasoline Bioblendstock},
author = {Nguyen, Hannah and Huq, Nabila A. and Stuck, Daniela and Tifft, Stephen M. and Conklin, Davis R. and Koehler, Andrew J. and McNeary, William Wilson and Fioroni, Gina M. and Hays, Cameron and Christensen, Earl D. and McNamara, Ian and Bartling, Andrew and Davis, Ryan and Unocic, Kinga A. and Vardon, Derek R.},
abstractNote = {Abstract Supercritical methanol (SCM) solvolysis and catalysis has recently emerged as a promising pathway to produce gasoline‐range light alcohols from woody biomass through staged depolymerization and hydro‐deoxygenation (DHDO). Here, structure–property relationships of Cu“M”AlO x catalysts (M = Mg, Zr, and Ce) are examined for upgrading delignified hybrid poplar via SCM‐DHDO. CuCeAlO x displays the highest activity, increasing the C 2 C 7 alcohol production rate and selectivity by twofold in batch reactions, and > 50% in semicontinuous reactions relative to the current state‐of‐the‐art CuMgAlO x . The performance of CuCeAlO x is correlated with its high reducibility and acidity. Cu sintering and biogenic impurity poisoning are identified as possible deactivation mechanisms over 60 h of continuous testing. The gasoline‐range SCM‐DHDO products are comprised of primarily aliphatic alcohols that result in improved energy density and favorably reduced vapor pressure, relative to ethanol, with the tradeoff of nonsynergistic octane blending with conventional gasoline and lower oxidation stability. Overall, this work highlights the potential to produce suitable light oxygenates by SCM‐DHDO processing for gasoline bioblendstock applications.},
doi = {10.1002/adsu.202100310},
journal = {Advanced Sustainable Systems},
number = 4,
volume = 6,
place = {United States},
year = {Thu Jan 27 00:00:00 EST 2022},
month = {Thu Jan 27 00:00:00 EST 2022}
}

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