Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions: Article No. 119649

Adarsh Kumar; Abhishek Kumar; Daniel Santosa; Huamin Wang; Peng Zuo; Chongmin Wang; Ashutosh Mittal; Rafal Gieleciak; Darryl Klein; Michael Manto; Bin Yang

doi:10.1016/j.apcata.2024.119649

Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions: Article No. 119649

Adarsh Kumar, Abhishek Kumar, Daniel Santosa, Huamin Wang, Peng Zuo, Chongmin Wang, Ashutosh Mittal, Rafal Gieleciak, Darryl Klein, Michael Manto, Bin Yang

Renewable Resources and Enabling Sciences Center

Research output: Contribution to journal › Article › peer-review

1 Scopus Citations

Abstract

We report a continuous selective hydrodeoxygenation (HDO) process of guaiacol conversion to cycloalkanes under 180 degrees C/1 MPa, which results in improved HDO chemistry for lignin-based jet fuel production. The incipient wetness impregnation method was modified to prepare an HY zeolite-supported Ru catalyst with better metal dispersion and acid site uniformity, which overcomes the low conversion and selectivity of previous literature. The modified catalyst (Ru-HY-60-MI) was tested in a continuous fixed bed reactor, resulting in increased HDO conversion of guaiacol to cycloalkanes compared to the unmodified catalyst. Pressure, temperature, and weight hourly space velocity-dependent tests validate guaiacol HDO over Ru-HY-60-MI catalyzed ring hydrogenation of guaiacol to 2-methoxycyclohexanol, acid-catalyzed demethoxylation and dehydration to cyclohexene, and further hydrogenation of cyclohexene to cyclohexane. These experiments enable exploring a continuous HDO process, demonstrate effectiveness for other ..beta..-..beta.. and ..alpha..-O-4 lignin representatives and real lignin bio-oil, and pave the way towards commercialization of lignin-based jet fuel.

Original language	American English
Number of pages	12
Journal	Applied Catalysis A: General
Volume	676
DOIs	https://doi.org/10.1016/j.apcata.2024.119649
State	Published - 2024

NREL Publication Number

NREL/JA-2800-89356

Keywords

continuous hydrodeoxygenation
cycloalkanes
engineered catalyst
lignin bio-oil
moderate conditions
sustainable biorefinery

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10.1016/j.apcata.2024.119649

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Kumar, A., Kumar, A., Santosa, D., Wang, H., Zuo, P., Wang, C., Mittal, A., Gieleciak, R., Klein, D., Manto, M., & Yang, B. (2024). Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions: Article No. 119649. Applied Catalysis A: General, 676. https://doi.org/10.1016/j.apcata.2024.119649

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title = "Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions: Article No. 119649",

abstract = "We report a continuous selective hydrodeoxygenation (HDO) process of guaiacol conversion to cycloalkanes under 180 degrees C/1 MPa, which results in improved HDO chemistry for lignin-based jet fuel production. The incipient wetness impregnation method was modified to prepare an HY zeolite-supported Ru catalyst with better metal dispersion and acid site uniformity, which overcomes the low conversion and selectivity of previous literature. The modified catalyst (Ru-HY-60-MI) was tested in a continuous fixed bed reactor, resulting in increased HDO conversion of guaiacol to cycloalkanes compared to the unmodified catalyst. Pressure, temperature, and weight hourly space velocity-dependent tests validate guaiacol HDO over Ru-HY-60-MI catalyzed ring hydrogenation of guaiacol to 2-methoxycyclohexanol, acid-catalyzed demethoxylation and dehydration to cyclohexene, and further hydrogenation of cyclohexene to cyclohexane. These experiments enable exploring a continuous HDO process, demonstrate effectiveness for other ..beta..-..beta.. and ..alpha..-O-4 lignin representatives and real lignin bio-oil, and pave the way towards commercialization of lignin-based jet fuel.",

keywords = "continuous hydrodeoxygenation, cycloalkanes, engineered catalyst, lignin bio-oil, moderate conditions, sustainable biorefinery",

author = "Adarsh Kumar and Abhishek Kumar and Daniel Santosa and Huamin Wang and Peng Zuo and Chongmin Wang and Ashutosh Mittal and Rafal Gieleciak and Darryl Klein and Michael Manto and Bin Yang",

year = "2024",

doi = "10.1016/j.apcata.2024.119649",

language = "American English",

volume = "676",

journal = "Applied Catalysis A: General",

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Kumar, A, Kumar, A, Santosa, D, Wang, H, Zuo, P, Wang, C, Mittal, A, Gieleciak, R, Klein, D, Manto, M & Yang, B 2024, 'Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions: Article No. 119649', Applied Catalysis A: General, vol. 676. https://doi.org/10.1016/j.apcata.2024.119649

TY - JOUR

T1 - Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions

T2 - Article No. 119649

AU - Kumar, Adarsh

AU - Kumar, Abhishek

AU - Santosa, Daniel

AU - Wang, Huamin

AU - Zuo, Peng

AU - Wang, Chongmin

AU - Mittal, Ashutosh

AU - Gieleciak, Rafal

AU - Klein, Darryl

AU - Manto, Michael

AU - Yang, Bin

PY - 2024

Y1 - 2024

N2 - We report a continuous selective hydrodeoxygenation (HDO) process of guaiacol conversion to cycloalkanes under 180 degrees C/1 MPa, which results in improved HDO chemistry for lignin-based jet fuel production. The incipient wetness impregnation method was modified to prepare an HY zeolite-supported Ru catalyst with better metal dispersion and acid site uniformity, which overcomes the low conversion and selectivity of previous literature. The modified catalyst (Ru-HY-60-MI) was tested in a continuous fixed bed reactor, resulting in increased HDO conversion of guaiacol to cycloalkanes compared to the unmodified catalyst. Pressure, temperature, and weight hourly space velocity-dependent tests validate guaiacol HDO over Ru-HY-60-MI catalyzed ring hydrogenation of guaiacol to 2-methoxycyclohexanol, acid-catalyzed demethoxylation and dehydration to cyclohexene, and further hydrogenation of cyclohexene to cyclohexane. These experiments enable exploring a continuous HDO process, demonstrate effectiveness for other ..beta..-..beta.. and ..alpha..-O-4 lignin representatives and real lignin bio-oil, and pave the way towards commercialization of lignin-based jet fuel.

AB - We report a continuous selective hydrodeoxygenation (HDO) process of guaiacol conversion to cycloalkanes under 180 degrees C/1 MPa, which results in improved HDO chemistry for lignin-based jet fuel production. The incipient wetness impregnation method was modified to prepare an HY zeolite-supported Ru catalyst with better metal dispersion and acid site uniformity, which overcomes the low conversion and selectivity of previous literature. The modified catalyst (Ru-HY-60-MI) was tested in a continuous fixed bed reactor, resulting in increased HDO conversion of guaiacol to cycloalkanes compared to the unmodified catalyst. Pressure, temperature, and weight hourly space velocity-dependent tests validate guaiacol HDO over Ru-HY-60-MI catalyzed ring hydrogenation of guaiacol to 2-methoxycyclohexanol, acid-catalyzed demethoxylation and dehydration to cyclohexene, and further hydrogenation of cyclohexene to cyclohexane. These experiments enable exploring a continuous HDO process, demonstrate effectiveness for other ..beta..-..beta.. and ..alpha..-O-4 lignin representatives and real lignin bio-oil, and pave the way towards commercialization of lignin-based jet fuel.

KW - continuous hydrodeoxygenation

KW - cycloalkanes

KW - engineered catalyst

KW - lignin bio-oil

KW - moderate conditions

KW - sustainable biorefinery

U2 - 10.1016/j.apcata.2024.119649

DO - 10.1016/j.apcata.2024.119649

M3 - Article

SN - 0926-860X

VL - 676

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Engineered Ru on HY Zeolite Catalyst for Continuous and Selective Hydrodeoxygenation of Lignin Phenolics to Cycloalkanes Under Moderate Conditions: Article No. 119649

Abstract

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Keywords

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