Hydrogenation of lignin-derived feedstocks and bio-oil using active and stable ruthenium catalyst

Singh, Baint and Kumar, Raju and Natte, Kishore and et al, . (2023) Hydrogenation of lignin-derived feedstocks and bio-oil using active and stable ruthenium catalyst. Catalysis Today, 408. pp. 139-149. ISSN 0920-5861

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Abstract

Value addition of lignin-derived phenols into high-value chemicals and fuels is highly desirable and beneficial for bio-refineries owing to their broad applications in chemical and polymer industries. Here we present selective hydrogenation of various lignin-derived phenols into cyclohexanol and its derivatives using SiO2-Al2O3 supported stable and reusable Ru nanoparticles (Ru-NC/SiO2-Al2O3) in a green and sustainable manner. The Ru-NC/SiO2-Al2O3 nanocatalyst is prepared by simple impregnation followed by the pyrolysis method. The Ru-NC/SiO2-Al2O3 nanocatalyst shows excellent activity for the hydrogenation of lignin-derived functional phenols, including o, p, m-cresols, catechol, 4-n-propylphenol, diphenyl ether, guaiacol, eugenol, and others. In addition, hemicelluloses-derived furfural and furfuryl alcohol were also transformed into their hydrogenated products. Further, this transformation is also used for the hydrogenation of alkali lignin bio-oil, which is selectively transformed into corresponding cyclohexanol derivatives. HR-TEM, XPS, powder-XRD, N2 adsorption-desorption, and NH3-TPD analyses were used to examine the physicochemical properties of both fresh and spent Ru-NC/SiO2-Al2O3 nanocatalysts. Furthermore, the Ru-NC/SiO2-Al2O3 nanocatalyst is recycled and reused four times with no loss of any catalytic activity. © 2022 Elsevier B.V.

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IITH Creators:

IITH Creators	ORCiD
Natte, Kishore	https://orcid.org/0000-0001-8557-1969

Item Type:

Article

Additional Information:

We thank the Director, CSIR-Indian Institute of Petroleum, Dehradun, for his generous support. Baint Singh is thankful to DST-Inspire for awarding a research fellowship. Raju Kumar is thankful to the Council of Scientific and Industrial Research (CSIR) New Delhi for awarding junior research fellowships (JRF). Dr. Natte acknowledges the financial support from the Science and Engineering Research Board (SERB) , New Delhi, Government of India, Grant number: SRG/20l9/002004 .

Uncontrolled Keywords:

And Ruthenium nanoparticles; Bio-oil; Cyclohexanols; Hydrogenation; Lignin-derived phenols

Subjects:

Chemistry

Divisions:

Department of Chemistry

Depositing User:

. LibTrainee 2021

Date Deposited:

23 Nov 2022 11:53

Last Modified:

23 Nov 2022 11:53