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Готові списки джерел за темами / Hydrogenolysis of cellulose

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Добірка наукової літератури з теми "Hydrogenolysis of cellulose"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Hydrogenolysis of cellulose"

1

Filatova, A. "Physical and chemical research of hydrogenolysis cellulose in subcritical water using Ru–containing catalysts new type." Bulletin of Science and Practice 398, no. 10(11) (2016): 47–55. https://doi.org/10.5281/zenodo.160918.

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Анотація:

The most appropriate parameters of the reaction of hydrogenolysis of cellulose: the temperature of 205 °C, a partial hydrogen pressure of 60 bar, reaction time 60 min, the ratio Ru/cellulose (mmol Ru in the composition of the composite per 1 g of cellulose) 0.042/1, the percentage content of ruthenium in the composite is 3% (mass.). Under these conditions, the conversion of cellulose amounted to 64.0%, the selectivity to sorbitol 43.5%. In addition, were synthesized Ru–containing catalysts. The obtained catalysts were investigated using a wide range of physical and chemical research. In additi

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2

Manaenkov, Oleg, Yuriy Kosivtsov, Valentin Sapunov, et al. "Kinetic Modeling for the “One-Pot” Hydrogenolysis of Cellulose to Glycols over Ru@Fe3O4/Polymer Catalyst." Reactions 3, no. 1 (2021): 1–11. http://dx.doi.org/10.3390/reactions3010001.

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Despite numerous works devoted to the cellulose hydrogenolysis process, only some of them describe reaction kinetics. This is explained by the complexity of the process and the simultaneous behavior of different reactions. In this work, we present the results of the kinetic study of glucose hydrogenolysis into ethylene- and propylene glycols in the presence of Ru@Fe3O4/HPS catalyst as a part of the process of catalytic conversion of cellulose into glycols. The structure of the Ru-containing magnetically separable Ru@Fe3O4/HPS catalysts supported on the polymeric matrix of hypercrosslinked poly

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3

Filatova, A., E. Shimanskaya, M. Sulman, and D. Gakipova. "The full catalytic processing of biomass components." Bulletin of Science and Practice, no. 12 (December 11, 2017): 50–56. https://doi.org/10.5281/zenodo.1101147.

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In this work, experimental studies aimed at the study of the hydrogenolysis of components of plant biomass with the production of valuable chemical substances have been conducted. Research aimed at the finding of the effective catalytic system allows obtaining a high degree of conversion of the substrate with high selectivity in the processing of all components of the biomass. On the basis of experimental data, it can be concluded that 3% Ru/MN270 catalyst is active in the hydrogenolysis of lignin, cellulose and hemicellulose, and it can be used in a complex processing of biomass. The catalyti

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4

Kumaniaev, Ivan, Elena Subbotina, Maxim V. Galkin, et al. "A combination of experimental and computational methods to study the reactions during a Lignin-First approach." Pure and Applied Chemistry 92, no. 4 (2020): 631–39. http://dx.doi.org/10.1515/pac-2019-1002.

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AbstractCurrent pulping technologies only valorize the cellulosic fiber giving total yields from biomass below 50 %. Catalytic fractionation enables valorization of both cellulose, lignin, and, optionally, also the hemicellulose. The process consists of two operations occurring in one pot: (1) solvolysis to separate lignin and hemicellulose from cellulose, and (2) transition metal catalyzed reactions to depolymerize lignin and to stabilized monophenolic products. In this article, new insights into the roles of the solvolysis step as well as the operation of the transition metal catalyst are gi

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5

Li, Naixu, Yu Zheng, Lingfei Wei, Hongcheng Teng, and Jiancheng Zhou. "Metal nanoparticles supported on WO3 nanosheets for highly selective hydrogenolysis of cellulose to ethylene glycol." Green Chemistry 19, no. 3 (2017): 682–91. http://dx.doi.org/10.1039/c6gc01327a.

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6

Chai, Jiachun, Shanhui Zhu, Youliang Cen, Jing Guo, Jianguo Wang, and Weibin Fan. "Effect of tungsten surface density of WO3–ZrO2 on its catalytic performance in hydrogenolysis of cellulose to ethylene glycol." RSC Advances 7, no. 14 (2017): 8567–74. http://dx.doi.org/10.1039/c6ra27524a.

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7

Manaenkov, Oleg V., Olga V. Kislitsa, Ekaterina A. Ratkevich, and Mikhail G. Sulman. "MAGNETICALLY RECOVERABLE POLYMER CATALYST FOR CELLULOSE HYDROGENOLYSIS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 63, no. 2 (2020): 59–63. http://dx.doi.org/10.6060/ivkkt.20206302.6062.

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Анотація:

A new type of Ru-containing magnetically recoverable catalyst based on a polymer matrix of hypercrosslinked polystyrene (HPS) for the reaction of the hydrogenolysis of microcrystalline cellulose to ethylene and propylene glycol (EG and PG) is proposed. The catalyst is synthesized sequentially in two stages. At the first stage, by means of thermal decomposition of iron (III) salts in the presence of polyols, magnetite particles (Fe3O4) are formed in the pores of the HPS. At the second stage, Ru-containing nanoparticles of the active phase of the catalyst are synthesized on the surface of Fe3O4/

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8

Hamdy, Mohamed S., Murad A. Eissa, and Sherif M. A. S. Keshk. "New catalyst with multiple active sites for selective hydrogenolysis of cellulose to ethylene glycol." Green Chem. 19, no. 21 (2017): 5144–51. http://dx.doi.org/10.1039/c7gc02122d.

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Three different active sites were incorporated in 3-D silica matrix. One pot procedure was applied without using solvents or surfactants. The prepared material exhibited superior catalytic activity in the hydrogenolysis of cellulose to ethylene glycol.

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9

Manaenkov, O. V., O. V. Kislitza, V. Yu Doluda, et al. "KINETICS OF THE CELLULOSE HYDROGENOLYSIS IN SUBCRITICAL WATER." Scientific and Technical Volga region Bulletin 6, no. 4 (2016): 20–22. http://dx.doi.org/10.24153/2079-5920-2016-6-4-20-22.

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10

Fan, Guifang, De Chen, Shizhong Li, Mingde Yang, and Yulong Wu. "Effect of metal oxides on reaction route and product distribution of catalytic cellulose hydrogenolysis." BioResources 18, no. 4 (2023): 7367–90. http://dx.doi.org/10.15376/biores.18.4.7367-7390.

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The effects of CeO2, ZrO2, Nb2O5, and ZnO catalysts supported on carbon nanotubes (CNT) relative to cellulose hydrothermal hydrogenolysis in the presence of Ni/CNT and pressured H2 was studied in this work. The catalysts were characterized by inductively coupled plasma – optical emission spectrometry, X-ray diffraction, X-ray photoelectron spectrometry, transmission electron microscopy, NH3 temperature programmed desorption (TPD), and CO2-TPD. Glucose and its isomers were detected by mass spectrometry. The results showed that redox active CeO2/CNT with strong Lewis acid and strong Lewis base s

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Більше джерел

Дисертації з теми "Hydrogenolysis of cellulose"

1

Tajvidi, Kameh [Verfasser]. "Hydrolytische Hydrierung und Hydrogenolyse von Cellulose-Katalysatoroptimierung und Aufklärung des Reaktionsnetzwerks / Kameh Tajvidi." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1047326655/34.

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2

Mootabadi, Hamed. "Study on the catalytic hydrogenolysis of cellulose and its derived molecules into value-added polyols using mesoporous catalyst." Thesis, 2020. http://hdl.handle.net/1959.13/1412483.

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Masters Research - Master of Philosophy (MPhil)<br>A high rate of global warming and environmental destruction due to excessive use of petroleum-based energy has triggered recent interest in a renewable energy source which must be feasible from both standpoints of economic and environmental. One of the abundantly available alternative sources for conventional fossil fuel is cellulose. Ethylene glycol (EG) and propylene glycol (PG) are valuable chemicals that can be derived from catalytic conversion of glycerol. The biomass route for EG, PG and glycerol production presents noticeable benefits i

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3

GUMINA, BIANCA. "Sustainable conversion of biomass derived cellulose by using heterogeneous palladium based catalysts." Doctoral thesis, 2018. http://hdl.handle.net/11570/3131227.

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This doctoral work is focused on the sustainable valorization of cellulose and its derivable molecules, through the application of the hydrogenolysis technology, by using heterogeneous Pd-based catalysts, in order to achieve products with high-added values, such as chemicals and fuels. In particular, the study of hydrogenolysis has been conceived with a bottom-up approach starting from polyols, namely sorbitol (C6) and shorter polyols (C5-C2), to approach finally the cellulose, with the aim to unravel the reactivity and selectivity, and to understand the mechanism of reactions involved. This

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Частини книг з теми "Hydrogenolysis of cellulose"

1

Hausoul, Peter J. C., Jens U. Oltmanns, and Regina Palkovits. "Chapter 5. Hydrogenolysis of Cellulose and Sugars." In Energy and Environment Series. Royal Society of Chemistry, 2014. http://dx.doi.org/10.1039/9781782620099-00099.

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2

Zheng, Mingyuan, Aiqin Wang, Jifeng Pang, Ning Li, and Tao Zhang. "Mechanism and Kinetic Analysis of the Hydrogenolysis of Cellulose to Polyols." In Green Chemistry and Sustainable Technology. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-688-1_9.

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3

Ernst Müller, Thomas. "Hydrogenation and Hydrogenolysis with Ruthenium Catalysts and Application to Biomass Conversion." In Ruthenium - an Element Loved by Researchers [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97034.

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Анотація:

With the rising emphasis on efficient and highly selective chemical transformations, the field of ruthenium-catalysed hydrogenation and hydrogenolysis reactions has grown tremendously over recent years. The advances are triggered by the detailed understanding of the catalytic pathways that have enabled researchers to improve known transformations and realise new transformations in biomass conversion. Starting with the properties of ruthenium, this chapter introduces the concept of the catalytic function as a basis for rational design of ruthenium catalysts. Emphasis is placed on discussing the

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4

H. El-Moayed, Mohamed, Justin Kühn, Sea-Hyun Lee, Mahmoud Farag, and Sherif Mehanny. "Potential of Lignin Valorization with Emphasis on Bioepoxy Production." In Lignin - Chemistry, Structure, and Application [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.108263.

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Анотація:

Lignin is the second most abundant natural polymer after cellulose. It has high molecular weight and poor dispersity, which lowers its compatibility with other polymeric materials. Accordingly, it is hard to integrate lignin into polymer-based applications in its native form. Recently, lignin valorization, which aims to boost lignin value and reactivity with other materials, has captured the interest of many researchers. The volatility of oil and gas prices is one strong incentive for them to consider lignin as a potential replacement for many petroleum-based materials. In this chapter, lignin

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Тези доповідей конференцій з теми "Hydrogenolysis of cellulose"

1

Manaenkov, Oleg, Olga Kislitsa, Antonina Stepacheva, Linda Nikoshvili, and Valentina Matveeva. "OPTIMIZATION OF PROCESS CONDITIONS FOR THE CATALYTIC CONVERSION OF MICROCRYSTALLINE CELLULOSE INTO SUGAR ALCOHOLS." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/4.1/s17.21.

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Анотація:

The scale of annual reproduction of cellulose-containing biomass in nature allows us to draw an unambiguous conclusion that cellulose is the only source of raw materials for the chemical and fuel industries, representing a real alternative to fossil resources and, first of all, oil. Cellulose is the main component of plant biomass. According to some estimates, almost half of the organic carbon in the biosphere is contained in cellulose. Hydrolytic hydrogenation is a special case of carbohydrate hydrogenation. With regard to cellulose, the essence of the process is to combine the processes of i

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2

Manaenkov, Oleg. "MAGNETICALLY RECOVERABLE POLYMERIC CATALYST FOR CELLULOSE HYDROGENOLYSIS." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/4.1/s17.040.

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3

Sulman, E. M., V. G. Matveeva, O. V. Manaenkov, et al. "Cellulose hydrogenolysis with the use of the catalysts supported on hypercrosslinked polystyrene." In 4TH INTERNATIONAL CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCES (ICFAS2016). Author(s), 2016. http://dx.doi.org/10.1063/1.4968069.

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4

Khan, Aamir, Shazia Rehman, Jianyu Guan, Song Cheng, and Shao-Yuan Leu. "Comparison of Staged and Biphasic Organosolv Pretreatment to Facilitate the Production of Lignin-Based Sustainable Aviation Fuel (SAF) from Pelletized Urban Wood Product Wastes." In GPPS Hong Kong24. GPPS, 2023. http://dx.doi.org/10.33737/gpps23-tc-179.

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Анотація:

High-yield fractionation and depolymerization to convert woody waste-derived lignin into cycloalkane hydrocarbons is an essential subject to complete the function of sustainable aviation fuel (SAF). However, the biorefinery process needs to be carefully designed to produce small molecular weight monolignol at significant quantity. Our recent studies demonstrate that in comparison to one-pot catalytic transfer hydrogenolysis (CTH), in which large quantity of cellulosic fibres are forming into low value chars, lignocellulosic biomass could produce a higher quantity of SAF after mild fractionatio

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