Mild hydrogenation of bio-oil and its derived phenolic monomers over Pt–Ni bimetal-based catalysts

Zhang, Xing; Wang, Kaige; Chen, Junhao; Zhu, Lingjun; Wang, Shurong

doi:10.1016/j.apenergy.2020.115154

Cited by 51 publications

(22 citation statements)

References 50 publications

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“…Other technology and process development have also been proposed to mitigate the severe coking during the catalytic cracking of raw bio-oil. Instead of a previous thermal treatment, Zhang et al 82 proposed a mild hydrogenation of the phenolic compounds over a PtNi-based catalyst. This treatment led to a more stable catalytic cracking with an enhanced aromatization of olefins, which maximizes monocyclic aromatic hydrocarbons.…”

Section: Bio-oil and Its Valorization Routesmentioning

confidence: 99%

Advances and Challenges in the Valorization of Bio-Oil: Hydrodeoxygenation Using Carbon-Supported Catalysts

et al. 2021

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Biomass valorization to produce fuels and platform chemicals is one of the most relevant strategies to change the energetic scenario and the currently unsustainable petrochemical industry. Pyrolysis offers the possibility of integrating biomassderived oils (bio-oil) into this well-established industry, and the adaptation of already in-use technology, as hydrotreatment units, eases this transition. This new concept of biorefinery could also be improved from an environmental point of view by using carbonbased catalysts produced from biomass waste. In this work, we have reviewed hydrodeoxygenation (HDO) of bio-oil as a key process for the development of these biorefineries. The most relevant results on HDO mechanisms and catalysts are highlighted, with the main focus on activated carbon-supported catalysts. Special attention has been paid to those variables and requirements for a potential industrial implementation, such as the use of raw bio-oil, continuous reactors, and available kinetic models in the literature for reactor design. In addition, a final critical revision has been made with the perspectives, main gaps, and challenges for the integration of bio-oil HDO in a biorefinery.

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Section: Bio-oil and Its Valorization Routesmentioning

confidence: 99%

Advances and Challenges in the Valorization of Bio-Oil: Hydrodeoxygenation Using Carbon-Supported Catalysts

et al. 2021

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“…In this paper, Fe–Co bimetal-modified FeCo-ZSM-5 catalysts were efficiently prepared by the equal volume impregnation method 40 and characterized. Tetracycline hydrochloride (TCH) is a typical representative of tetracycline antibiotics.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Iron-Cobalt Synergies in ZSM-5: Enhanced Peroxymonosulfate Activation and Organic Pollutant Degradation

et al. 2022

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Iron- and cobalt-based heterogeneous catalysts are widely applied for activating peroxymonosulfate (PMS) to degrade organic pollutants. However, few studies have unveiled the clear synergistic mechanism of iron and cobalt in ZSM-5. In this paper, the synergistic mechanism of enhanced PMS activation was revealed by constructing iron and cobalt bimetal modified ZSM-5 zeolite catalysts (FeCo-ZSM-5). The tetracycline hydrochloride (TCH) degradation experiments showed that the catalytic activity of FeCo-ZSM-5-2:3 was much higher than those of Fe-ZSM-5 and Co-ZSM-5. In addition, the influences of catalyst dosage, PMS concentration, reaction temperature, initial pH, and coexisting ions on TCH removal were systematically investigated in this paper. Density functional theory calculations indicated that Co was the main active site for PMS adsorption, and Fe increased the area of Co’s positive potential mapped to the electron cloud. The Fe–Co bimetallic doping increased the area of positive potential mapped to the electron cloud and benefited the adsorption of PMS on the catalyst surface, which revealed the synergistic mechanism of bimetals. Electron paramagnetic resonance spectra and quenching experiments showed that sulfate radicals, singlet oxygen, and hydroxyl radicals were involved in the degradation of TCH. Furthermore, liquid chromatography–mass spectrometry was conducted to propose possible degradation pathways. This work provides certain guiding significance in understanding the synergistic effect of heterogeneous catalysts for tetracycline wastewater treatment.

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“…29,30 Bimetallic catalysts formed by incorporation of a second metal in Ni catalysts provide an efficient strategy to improve the performance for HDO in terms of activity, selectivity, and coking-resistance. [31][32][33] That is due to fact that the second metal acted as a promoter can modify the geometric and electronic structures of Ni. Ardiyanti et al 34 found that Ni-Cu/ δ-Al 2 O 3 catalysts exhibit better activity and less coke for HDO of anisole than the monometallic Ni/δ-Al 2 O 3 catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, the side reactions of cracking and methanation will sacrifice the selectivity of hydrocarbons 29,30 . Bimetallic catalysts formed by incorporation of a second metal in Ni catalysts provide an efficient strategy to improve the performance for HDO in terms of activity, selectivity, and coking‐resistance 31‐33 . That is due to fact that the second metal acted as a promoter can modify the geometric and electronic structures of Ni.…”

Section: Introductionmentioning

confidence: 99%

Hydrodeoxygenation of fatty acid methyl esters and simultaneous products isomerization over bimetallic Ni‐Co / SAPO ‐11 catalysts

et al. 2021

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Bimetallic Ni-Co/SAPO-11 catalysts were prepared and investigated for hydrodeoxygenation (HDO) of fatty acid methyl esters (FAMEs) and sequential isomerization of the products in a continuous fixed-bed reactor. The physicochemical properties of the catalysts were characterized by means of N 2 adsorption-desorption, temperature-programmed reduction of H 2 , temperature-programmed desorption of NH 3 , infrared spectra of adsorbed pyridine, and thermogravimetry. The conversion of FAMEs and selectivity of C 15-18 are enhanced over the bimetallic Ni-Co/SAPO-11 catalysts compared with that of the corresponding monometallic counterparts, which is attributed to the modification effect by Co species. The balance between metal Ni and Co and the acidity of the support plays an important role in the catalytic performance. The Ni-Co/SAPO-11 catalysts with composition of 3% Ni and 6% Co exhibit optimal catalytic performance, specifically the conversion of FAMEs, selectivity of C 15-18 , and isomerization ratio of C 15-18 , respectively, reaching 100.0%, 93.0%, and 36.1% at 400 C and 1

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Mild hydrogenation of bio-oil and its derived phenolic monomers over Pt–Ni bimetal-based catalysts

Cited by 51 publications

References 50 publications

Advances and Challenges in the Valorization of Bio-Oil: Hydrodeoxygenation Using Carbon-Supported Catalysts

Advances and Challenges in the Valorization of Bio-Oil: Hydrodeoxygenation Using Carbon-Supported Catalysts

Understanding the Iron-Cobalt Synergies in ZSM-5: Enhanced Peroxymonosulfate Activation and Organic Pollutant Degradation

Hydrodeoxygenation of fatty acid methyl esters and simultaneous products isomerization over bimetallic Ni‐Co / SAPO ‐11 catalysts

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