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Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite

Hydrodeoxygenation (HDO) of guaiacol to cyclohexane, important for bio-oil upgrading, is usually performed at high reaction temperature (≥200 °C). In this work, low temperature transformation of guaiacol to cyclohexane was achieved at 140 °C over non-noble metal Ni/SiO(2) and various zeolites. Among...

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Detalles Bibliográficos
Autores principales: Wang, Xun, Zhu, Shanhui, Wang, Sen, He, Yue, Liu, Yang, Wang, Jianguo, Fan, Weibin, Lv, Yongkang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060501/
https://www.ncbi.nlm.nih.gov/pubmed/35518115
http://dx.doi.org/10.1039/c8ra09972c
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author Wang, Xun
Zhu, Shanhui
Wang, Sen
He, Yue
Liu, Yang
Wang, Jianguo
Fan, Weibin
Lv, Yongkang
author_facet Wang, Xun
Zhu, Shanhui
Wang, Sen
He, Yue
Liu, Yang
Wang, Jianguo
Fan, Weibin
Lv, Yongkang
author_sort Wang, Xun
collection PubMed
description Hydrodeoxygenation (HDO) of guaiacol to cyclohexane, important for bio-oil upgrading, is usually performed at high reaction temperature (≥200 °C). In this work, low temperature transformation of guaiacol to cyclohexane was achieved at 140 °C over non-noble metal Ni/SiO(2) and various zeolites. Among zeolites tested (HUSY, HMOR, Hβ, HZSM-5, SAPO-34), Hβ zeolite exhibited superior catalytic activity due to its appropriate pore structure and acid strength. The open pore with three-dimensional structure of Hβ facilitates the diffusion of guaiacol and intermediates. Meanwhile, weak acid strength of Hβ efficiently reduces the competitive adsorption of guaiacol, and then promotes the dehydration of intermediate 2-methoxycyclohexanol. Moreover, the catalytic performance in guaiacol HDO to cyclohexane is also closely related to Si/Al ratio of Hβ. Owing to its moderate acid density, the maximum yield of cyclohexane reaches 91.7% on Hβ(Si/Al = 50) combined with Ni/SiO(2) at 140 °C, which is the lowest temperature ever reported over non-noble metal catalysts.
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spelling pubmed-90605012022-05-04 Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite Wang, Xun Zhu, Shanhui Wang, Sen He, Yue Liu, Yang Wang, Jianguo Fan, Weibin Lv, Yongkang RSC Adv Chemistry Hydrodeoxygenation (HDO) of guaiacol to cyclohexane, important for bio-oil upgrading, is usually performed at high reaction temperature (≥200 °C). In this work, low temperature transformation of guaiacol to cyclohexane was achieved at 140 °C over non-noble metal Ni/SiO(2) and various zeolites. Among zeolites tested (HUSY, HMOR, Hβ, HZSM-5, SAPO-34), Hβ zeolite exhibited superior catalytic activity due to its appropriate pore structure and acid strength. The open pore with three-dimensional structure of Hβ facilitates the diffusion of guaiacol and intermediates. Meanwhile, weak acid strength of Hβ efficiently reduces the competitive adsorption of guaiacol, and then promotes the dehydration of intermediate 2-methoxycyclohexanol. Moreover, the catalytic performance in guaiacol HDO to cyclohexane is also closely related to Si/Al ratio of Hβ. Owing to its moderate acid density, the maximum yield of cyclohexane reaches 91.7% on Hβ(Si/Al = 50) combined with Ni/SiO(2) at 140 °C, which is the lowest temperature ever reported over non-noble metal catalysts. The Royal Society of Chemistry 2019-01-29 /pmc/articles/PMC9060501/ /pubmed/35518115 http://dx.doi.org/10.1039/c8ra09972c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Wang, Xun
Zhu, Shanhui
Wang, Sen
He, Yue
Liu, Yang
Wang, Jianguo
Fan, Weibin
Lv, Yongkang
Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite
title Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite
title_full Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite
title_fullStr Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite
title_full_unstemmed Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite
title_short Low temperature hydrodeoxygenation of guaiacol into cyclohexane over Ni/SiO(2) catalyst combined with Hβ zeolite
title_sort low temperature hydrodeoxygenation of guaiacol into cyclohexane over ni/sio(2) catalyst combined with hβ zeolite
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060501/
https://www.ncbi.nlm.nih.gov/pubmed/35518115
http://dx.doi.org/10.1039/c8ra09972c
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