Selective Conversion of Enzymatic Hydrolysis Lignin into Alkylphenols in Supercritical Ethanol over a WO3/γ-Al2O3 Catalyst

Fuhang Mai; Zhe Wen; Yunfei Bai; Zewei Ma; Kai Cui; Kai Wu; Fei Yan; Hong Chen; Yongdan Li

doi:10.1021/acs.iecr.9b01593

Selective Conversion of Enzymatic Hydrolysis Lignin into Alkylphenols in Supercritical Ethanol over a WO₃/γ-Al₂O₃ Catalyst

Fuhang Mai, Zhe Wen, Yunfei Bai, Zewei Ma, Kai Cui, Kai Wu, Fei Yan, Hong Chen^*, Yongdan Li

^*Tämän työn vastaava kirjoittaja

Tianjin University

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

28 Sitaatiot (Scopus)

Abstrakti

A WO₃/γ-Al₂O₃ catalyst prepared by an incipient-wetness impregnation method is employed in the selective conversion of enzymatic hydrolysis lignin (EHL) into various alkylphenols in supercritical ethanol. In the reaction, EHL is completely dissolved and converted into aliphatic and aromatic compounds with a total yield of 363.4 mg/g lignin at 320 °C for 8 h. The yield of aromatic compounds is 315.8 mg/g lignin, accounting for 86.9% of the total yield of the products, and the overall selectivity of alkylphenols reaches 67.5%. Compared to WO₃ and H₂WO₄, the WO₃/γ-Al₂O₃ shows a higher activity for the conversion of EHL in supercritical ethanol. Besides, ethanol is found to be the most effective solvent for the depolymerization of EHL with the WO₃/γ-Al₂O₃ catalyst. The WO₃/γ-Al₂O₃ keeps the high catalytic activity in three reuses.

Alkuperäiskieli	Englanti
Sivut	10255-10263
Sivumäärä	9
Julkaisu	Industrial and Engineering Chemistry Research
Vuosikerta	58
Numero	24
DOI - pysyväislinkit	https://doi.org/10.1021/acs.iecr.9b01593
Tila	Julkaistu - 19 kesäk. 2019
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1021/acs.iecr.9b01593

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Link to publication in Scopus

Siteeraa tätä

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title = "Selective Conversion of Enzymatic Hydrolysis Lignin into Alkylphenols in Supercritical Ethanol over a WO3/γ-Al2O3 Catalyst",

abstract = "A WO3/γ-Al2O3 catalyst prepared by an incipient-wetness impregnation method is employed in the selective conversion of enzymatic hydrolysis lignin (EHL) into various alkylphenols in supercritical ethanol. In the reaction, EHL is completely dissolved and converted into aliphatic and aromatic compounds with a total yield of 363.4 mg/g lignin at 320 °C for 8 h. The yield of aromatic compounds is 315.8 mg/g lignin, accounting for 86.9% of the total yield of the products, and the overall selectivity of alkylphenols reaches 67.5%. Compared to WO3 and H2WO4, the WO3/γ-Al2O3 shows a higher activity for the conversion of EHL in supercritical ethanol. Besides, ethanol is found to be the most effective solvent for the depolymerization of EHL with the WO3/γ-Al2O3 catalyst. The WO3/γ-Al2O3 keeps the high catalytic activity in three reuses.",

author = "Fuhang Mai and Zhe Wen and Yunfei Bai and Zewei Ma and Kai Cui and Kai Wu and Fei Yan and Hong Chen and Yongdan Li",

year = "2019",

month = jun,

day = "19",

doi = "10.1021/acs.iecr.9b01593",

language = "English",

volume = "58",

pages = "10255--10263",

journal = "Industrial and Engineering Chemistry Research",

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TY - JOUR

T1 - Selective Conversion of Enzymatic Hydrolysis Lignin into Alkylphenols in Supercritical Ethanol over a WO3/γ-Al2O3 Catalyst

AU - Mai, Fuhang

AU - Wen, Zhe

AU - Bai, Yunfei

AU - Ma, Zewei

AU - Cui, Kai

AU - Wu, Kai

AU - Yan, Fei

AU - Chen, Hong

AU - Li, Yongdan

PY - 2019/6/19

Y1 - 2019/6/19

N2 - A WO3/γ-Al2O3 catalyst prepared by an incipient-wetness impregnation method is employed in the selective conversion of enzymatic hydrolysis lignin (EHL) into various alkylphenols in supercritical ethanol. In the reaction, EHL is completely dissolved and converted into aliphatic and aromatic compounds with a total yield of 363.4 mg/g lignin at 320 °C for 8 h. The yield of aromatic compounds is 315.8 mg/g lignin, accounting for 86.9% of the total yield of the products, and the overall selectivity of alkylphenols reaches 67.5%. Compared to WO3 and H2WO4, the WO3/γ-Al2O3 shows a higher activity for the conversion of EHL in supercritical ethanol. Besides, ethanol is found to be the most effective solvent for the depolymerization of EHL with the WO3/γ-Al2O3 catalyst. The WO3/γ-Al2O3 keeps the high catalytic activity in three reuses.

AB - A WO3/γ-Al2O3 catalyst prepared by an incipient-wetness impregnation method is employed in the selective conversion of enzymatic hydrolysis lignin (EHL) into various alkylphenols in supercritical ethanol. In the reaction, EHL is completely dissolved and converted into aliphatic and aromatic compounds with a total yield of 363.4 mg/g lignin at 320 °C for 8 h. The yield of aromatic compounds is 315.8 mg/g lignin, accounting for 86.9% of the total yield of the products, and the overall selectivity of alkylphenols reaches 67.5%. Compared to WO3 and H2WO4, the WO3/γ-Al2O3 shows a higher activity for the conversion of EHL in supercritical ethanol. Besides, ethanol is found to be the most effective solvent for the depolymerization of EHL with the WO3/γ-Al2O3 catalyst. The WO3/γ-Al2O3 keeps the high catalytic activity in three reuses.

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DO - 10.1021/acs.iecr.9b01593

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VL - 58

SP - 10255

EP - 10263

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

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