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Title: One-pot process for hydrodeoxygenation of lignin to alkanes using Ru-based bimetallic and bifunctional catalysts supported on zeolite Y

Here, the synthesis of high-efficiency and low-cost catalysts for hydrodeoxygenation (HDO) of waste lignin to advanced biofuels is crucial for enhancing current biorefinery processes. Inexpensive transition metals, including Fe, Ni, Cu, and Zn, were severally co-loaded with Ru on HY zeolite to form bimetallic and bifunctional catalysts. These catalysts were subsequently tested for HDO conversion of softwood lignin and several lignin model compounds. Results indicated that the inexpensive earth-abundant metals could modulate the hydrogenolysis activity of Ru and decrease the yield of low-molecular-weight gaseous products. Among these catalysts, Ru-Cu/HY showed the best HDO performance, affording the highest selectivity to hydrocarbon products. The improved catalytic performance of Ru-Cu/HY was probably a result of the following three factors: (1) high total and strong acid sites, (2) good dispersion of metal species and limited segregation, and (3) high adsorption capacity for polar fractions, including hydroxyl groups and ether bonds. Moreover, all bifunctional catalysts proved to be superior over the combination catalysts of Ru/Al 2O 3 and HY zeolite.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [4] ;  [4] ;  [5] ;  [5] ;  [5] ; ORCiD logo [1]
  1. Washington State Univ., Richland, WA (United States)
  2. Southwest Research Institute, San Antonio, TX (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  4. Environmental Molecular Sciences Lab., Richland, WA (United States)
  5. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Report Number(s):
NREL/JA-5100-68188
Journal ID: ISSN 1864-5631
Grant/Contract Number:
AC36-08GO28308; AC36-08G028308
Type:
Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 10; Journal Issue: 8; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; bifunctional catalysts; bimetallic catalysts; biofuel; hydrodeoxygenation; lignin
OSTI Identifier:
1353424
Alternate Identifier(s):
OSTI ID: 1400822

Wang, Hongliang, Ruan, Hao, Feng, Maoqi, Qin, Yuling, Job, Heather, Luo, Langli, Wang, Chongmin, Engelhard, Mark H., Kuhn, Erik, Chen, Xiaowen, Tucker, Melvin P., and Yang, Bin. One-pot process for hydrodeoxygenation of lignin to alkanes using Ru-based bimetallic and bifunctional catalysts supported on zeolite Y. United States: N. p., Web. doi:10.1002/cssc.201700160.
Wang, Hongliang, Ruan, Hao, Feng, Maoqi, Qin, Yuling, Job, Heather, Luo, Langli, Wang, Chongmin, Engelhard, Mark H., Kuhn, Erik, Chen, Xiaowen, Tucker, Melvin P., & Yang, Bin. One-pot process for hydrodeoxygenation of lignin to alkanes using Ru-based bimetallic and bifunctional catalysts supported on zeolite Y. United States. doi:10.1002/cssc.201700160.
Wang, Hongliang, Ruan, Hao, Feng, Maoqi, Qin, Yuling, Job, Heather, Luo, Langli, Wang, Chongmin, Engelhard, Mark H., Kuhn, Erik, Chen, Xiaowen, Tucker, Melvin P., and Yang, Bin. 2017. "One-pot process for hydrodeoxygenation of lignin to alkanes using Ru-based bimetallic and bifunctional catalysts supported on zeolite Y". United States. doi:10.1002/cssc.201700160. https://www.osti.gov/servlets/purl/1353424.
@article{osti_1353424,
title = {One-pot process for hydrodeoxygenation of lignin to alkanes using Ru-based bimetallic and bifunctional catalysts supported on zeolite Y},
author = {Wang, Hongliang and Ruan, Hao and Feng, Maoqi and Qin, Yuling and Job, Heather and Luo, Langli and Wang, Chongmin and Engelhard, Mark H. and Kuhn, Erik and Chen, Xiaowen and Tucker, Melvin P. and Yang, Bin},
abstractNote = {Here, the synthesis of high-efficiency and low-cost catalysts for hydrodeoxygenation (HDO) of waste lignin to advanced biofuels is crucial for enhancing current biorefinery processes. Inexpensive transition metals, including Fe, Ni, Cu, and Zn, were severally co-loaded with Ru on HY zeolite to form bimetallic and bifunctional catalysts. These catalysts were subsequently tested for HDO conversion of softwood lignin and several lignin model compounds. Results indicated that the inexpensive earth-abundant metals could modulate the hydrogenolysis activity of Ru and decrease the yield of low-molecular-weight gaseous products. Among these catalysts, Ru-Cu/HY showed the best HDO performance, affording the highest selectivity to hydrocarbon products. The improved catalytic performance of Ru-Cu/HY was probably a result of the following three factors: (1) high total and strong acid sites, (2) good dispersion of metal species and limited segregation, and (3) high adsorption capacity for polar fractions, including hydroxyl groups and ether bonds. Moreover, all bifunctional catalysts proved to be superior over the combination catalysts of Ru/Al2O3 and HY zeolite.},
doi = {10.1002/cssc.201700160},
journal = {ChemSusChem},
number = 8,
volume = 10,
place = {United States},
year = {2017},
month = {2}
}

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