4.7 Article

Catalytic hydroconversion of a cotton stalk-derived soluble portion over Ni/sepiolite

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Applied

La2O3-promoted Ni/H-ZSM-5 catalyzed aqueous-phase guaiacol hydrodeoxygenation to cyclohexanol

Feng Lin et al.

Summary: In this paper, a rare earth metal La2O3-doped bimetallic supported catalyst Ni-La2O3/H-ZSM-5 was prepared and used for the catalytic conversion of lignin model compound guaiacol to cyclohexanol in the aqueous phase. The results showed that the doping of La2O3 changed the distribution of Ni and caused electron transfer between La2O3 and Ni. Additionally, a strong metal carrier interaction occurred between the bimetallic Ni-La2O3 and H-ZSM-5, which effectively promoted the hydrolysis of the C-O ether bond in guaiacol and significantly improved the catalyst's activity.

JOURNAL OF RARE EARTHS (2023)

Article Energy & Fuels

Catalytic hydroconversion of two lignin-related model compounds over Ni/CeO2

Ji Zhao et al.

Summary: Ni/CeO2 catalyst with medium-strong acidity was prepared using in-situ carbon templating and reduction with H2. It showed excellent activity in the conversion of lignin-related model compounds, producing cyclohexane and methylcyclohexane. Moreover, the catalyst exhibited good reusability.
Article Energy & Fuels

Catalytic hydroconversion of an organic waster oil to cyclanes over Ni/SiO2

Li Li et al.

Summary: In this study, organic waste oil was extracted using ultrasonic waves and a mixed solvent, and then the extracted portion was converted into cyclanes using catalytic hydroconversion technology. The Ni/SiO2 catalyst played a significant role in hydrogenating aromatic rings and removing heteroatoms, exhibiting favorable reactivity under mild conditions.
Article Energy & Fuels

Selective hydrodeoxygenation of lignin-derived phenols to alkyl cyclohexanols over highly dispersed RuFe bimetallic catalysts

Tao Liu et al.

Summary: In this study, the controllable selective hydrodeoxygenation (HDO) of phenolic compounds derived from pyrolysis lignin-oil to cyclohexanol using a RuFe bimetallic catalyst was investigated. The optimized 2Ru2.5Fe/Al2O3-EG catalyst exhibited excellent catalytic performance, achieving 99.99% guaiacol conversion and 81.35% cyclohexanol selectivity. The intimate contact between Ru and Fe2O3 species in the catalyst was found to improve the cyclohexanol selectivity.
Article Engineering, Environmental

Catalytic depolymerization of Kraft lignin to liquid fuels and guaiacol over phosphorus modified Mo/Sepiolite catalyst

Mingqiang Chen et al.

Summary: Phosphorus-modified Mo/Sepiolite catalysts can regulate Kraft lignin conversion, reducing lignin oil yield and HHV while significantly increasing the productivity of phenolic compounds. The optimized distribution between Mo5+ sites and acid strength/type in 5P-Mo/SEP results in lignin oil with a higher HHV compared to Kraft lignin.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Chemical

Highly dispersible cerium-oxide modified Ni/SBA-15 for steam reforming of bio-mass based JP10

Haocui Zhang et al.

Summary: Ni/SBA-15 modified by highly dispersed cerium-oxide with the aid of sucrose was prepared for steam reforming of JP10. The modified catalyst exhibited higher activity and stability, attributed to enhanced interface effect, suppression of sintering, and promotion of water-gas-shift reaction and carbon removal.

CHINESE JOURNAL OF CHEMICAL ENGINEERING (2022)

Article Chemistry, Physical

Fabricating high temperature stable Mo-Co9S8/Al2O3 catalyst for selective hydrodeoxygenation of lignin to arenes

Xinyong Diao et al.

Summary: A stable catalyst with Mo-doped Co9S8 nanoparticles anchored on Al2O3 matrix was fabricated, which showed high selectivity and stability in the hydrodeoxygenation of lignin. The Mo-Co9S8 structure demonstrated strong ability in the adsorption and activation of oxygen-containing substrates, enabling effective C-O cleavage and avoiding undesirable hydrogenation reactions. The superior stability and water-resistance were attributed to the anchoring effect of Al2O3 matrix and protection of surface-rich Co9S8 species.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Fabricating Bifunctional Co-Al2O3@USY Catalyst via In-Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Na Ji et al.

Summary: In this study, a bifunctional Co-Al2O3@USY catalyst was fabricated to enhance the catalytic activity and stability of metal catalysts in the hydrodeoxygenation of lignin derivatives into naphthenes. The catalyst showed high conversion and yield at low reaction temperature and exhibited excellent performance in multiple cycles and different lignin compounds.

CHEMCATCHEM (2022)

Article Energy & Fuels

Selective catalytic hydroconversion of organic waster oil to cyclanes over a coal fly ash-derived zeolite-supported nickel catalyst: Waster to energy

Li Li et al.

Summary: By catalytic hydroconversion, organic waste oil from petroleum processing can be converted into cyclic hydrocarbons. The Ni/ZTMS catalyst exhibits excellent catalytic performance, activating hydrogen and promoting the conversion of organic compounds in the waste oil.
Article Engineering, Environmental

High-efficiency catalytic hydrodeoxygenation of lignin-derived vanillin with nickel-supported metal phosphate catalysts

Jie Gao et al.

Summary: In this study, a series of Ni loaded metal phosphates catalysts were prepared for the hydrodeoxygenation of lignin-derived vanillin. It was found that Ni/ZrP catalyst showed the highest activity due to its small Ni particle size, large specific surface area, strong metal-support interaction, and optimal acidity. The synergistic effect of Ni, Lewis acid sites (LAS), and Bronsted acid sites (BAS) was proven to be important for the conversion of vanillin. Hydrogen from both H2 and isopropanol contributed to the reaction, reducing the need for external H2 supply.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Energy & Fuels

Highly efficient and selective conversion of guaiacol to cyclohexanol over Ni-Fe/MgAlOx: Understanding the synergistic effect between Ni-Fe alloy and basic sites

Lei Huang et al.

Summary: The production of cyclohexanol from non-fossil biomass using Ni-Fe alloy nanocatalysts is a green and sustainable method. The introduction of Fe and Mg species in the catalyst enhances electron transfer and increases the number of basic sites. Optimizing different catalytic sites improves the yield of cyclohexanol.
Article Energy & Fuels

Highly efficient and selective conversion of guaiacol to cyclohexanol over Ni-Fe/MgAlOx: Understanding the synergistic effect between Ni-Fe alloy and basic sites

Lei Huang et al.

Summary: The study demonstrates that optimizing the design of catalysts can achieve efficient conversion from guaiacol to cyclohexanol, with the synergistic effects between Ni-Fe alloy and basic sites playing a key role in improving performance.
Article Energy & Fuels

Conversion of Kraft lignin to phenol monomers and liquid fuel over trimetallic catalyst W-Ni-Mo/sepiolite under supercritical ethanol

Mingqiang Chen et al.

Summary: The highly efficient conversion of lignin to value-added liquid fuel or phenol monomers has attracted widespread attention. A W-Ni-Mo/SEP trimetallic catalyst was prepared for lignin catalytic depolymerization under supercritical ethanol, significantly improving the cycle stability and product selectivity compared to Mo/SEP. The catalyst formation increased oxygen vacancies, enhanced metal-support interaction, and reduced acid site content, leading to the production of lignin oil with higher HHV and increased selectivity to guaiacol and ethoxyphenol monomers.
Article Green & Sustainable Science & Technology

Catalytic hydrodeoxygenation of guaiacol as a model compound of woody bio-oil over Fe/AC and Ni/γ-Al2O3 catalysts

Quoc Khanh Tran et al.

Summary: The study prepared Ni/γ-Al2O3 and Fe/activated carbon catalysts for the hydrodeoxygenation (HDO) of guaiacol, showcasing different conversion rates under varying calcination temperatures and metal loadings.

RENEWABLE ENERGY (2021)

Article Energy & Fuels

Study of Mo-based sepiolite catalyst on depolymerization of lignin under supercritical ethanol

Zhiyuan Tang et al.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2020)

Article Chemistry, Multidisciplinary

Flexible NiCo-based catalyst for direct hydrodeoxygenation of guaiacol to cyclohexanol

Changzhou Chen et al.

NEW JOURNAL OF CHEMISTRY (2020)

Article Chemistry, Physical

Effect of sepiolite fibers addition on sintering behavior of sanitary bodies

Jiyuan Li et al.

APPLIED CLAY SCIENCE (2015)

Article Materials Science, Ceramics

Synthesis of ZrO2-SiO2 mixed oxide by alcohol-aqueous heating method

Yin Zhang et al.

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY (2011)